Small Chess Variants

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0-9

1. 38-Challenge: Index page. Missing description Author: Hans L. Bodlaender.
2. 39-Challenge: Index page. Missing description Author: Hans L. Bodlaender.
3. 3d Minishogi. A variant originally devised for a contest that never materialised. (3x(3x5), Cells: 45) By Charles Gilman.
4. 3x3 Chess. A complete analysis of Chess on a three by three board with FIDE pieces. Inventor: Kirill Kryukov.
5. 4-Player Pothole Chess. Bulldozers and cars and other vehicles are pieces in 4-player chess variant. (7x7, Cells: 39) and Seth Blanchard. and Seth Blanchard.
6. 40-squares chess variant design contest.. Missing description Author: Hans L. Bodlaender.
7. 40-squares chess variant design contest: Winners. Missing description Author: Hans L. Bodlaender.
8. 41-squares chess variant design contest. Contest rules. Author: Hans L. Bodlaender.
9. 41-squares chess variant design contest.. Missing description Author: Hans L. Bodlaender.
10. 42-squares chess variant design contest.. Missing description Author: Hans L. Bodlaender.
11. 43-squares chess variant design contest.. Missing description Author: Glenn Overby II and Hans L. Bodlaender.
12. 44-squares chess variant design contest.. Our annual N-squares chess variant design competition. Author: Hans L. Bodlaender.
13. 6 Ranks, remaining variants. Extrapolations from the Diana/Los Alamos/Haynie's Primary family of variants. (6x6) By Charles Gilman.

A

1. Action Man's Chess. A small (5x6) board and simple pieces ensures lots of easy-to-understand action. (5x6, Cells: 30) By Francois Tremblay.
2. Afterlife Chess. A game based on Ancient Egyption mythology, played on four boards totaling 42 squares. (Cells: 42) By Luiz Carlos Campos.
3. Alapo. A small chesslike game. Author: Ben M Reiniger. Inventor: Johannes Tranelis.
4. Alapo. Game with abstract pieces. Reach opponents first row on 6 by 6 board. (6x6, Cells: 36) Author: Hans L. Bodlaender. Inventor: Johannes Tranelis.
5. Alapo . Game with abstract pieces. Reach opponents first row on 6 by 6 board. Author: Uwe Wiedemann. Inventor: Johannes Tranelis.
6. Alapo. Simplified game. Author: Ed Friedlander. Inventor: Johannes Tranelis.
7. Amoeba. Jim Aikin's Amoeba on the Game Courier. Author: Abdul-Rahman Sibahi. Inventor: Jim Aikin.
8. Amoeba. Small variant with 38 movable squares. (7x7, Cells: 38) By Jim Aikin.
9. Amphora. Chess variant inspired by game of Stone Warriors on wine bottle shaped board with 40 squares. (Cells: 40) By Peter Aronson.
10. Amphora . Chess variant inspired by game of Stone Warriors on wine bottle shaped board with 40 squares. Author: Jens Markmann. Inventor: Peter Aronson.
11. An-Qi. Played on the squares of half a Xiangqi board but using all the pieces. (8x4, Cells: 32)
12. Analysis of 3x3 Chess. A complete analysis of Chess on a three by three board with FIDE pieces. Inventor: Kirill Kryukov.
13. Apocalypse. Small variant of knights and pawns; objective is to take all pawns. Author: Ben M Reiniger. Inventor: C. S. Elliott.
14. Apocalypse Mini-Chess. Miniature version with four horsemen. Author: Ed Friedlander. Inventor: C. S. Elliott.
15. Arena Chess 42 . Game with two boards totaling 42-squares where pieces captured on the large board move to the small board. By David Howe.
16. Arena Chess 42. A non-competing entry in the 42 Squares contest. (Cells: 42) By David Howe.
17. Arnhem Chess. Game on board of 38 squares. (6x7, Cells: 38) By Hans L. Bodlaender.
18. Aronson, Peter. Interview with the winner of the 44 squares contest. Author: Peter Aronson and Hans L. Bodlaender.
19. Ascension. 6x6 board with two Kings that promote to royal Queens. By Albert Lee.
20. Asteryx Chess. Preset for variant with asteryx shaped 43-space hexagonal board. Author: Fergus Duniho. Inventor: David Jagger.
21. Asteryx Chess. Hexagonal chess played on an asterisk-shaped board. (Cells: 43) By David Jagger.
22. Asteryx Chess. Sample Game. By David Jagger.

B

1. Baby Chess. Play this small 5x5 variant on Jocly. Author: Michel Gutierrez and Jérôme Choain. Inventor: Martin Gardner.
2. Bachelor Chess. Win by mating your opponent, or marrying off your King. (7x6, Cells: 42) By Doug Chatham.
3. Bachelor Chess. Play this game from the 42-square contest with the PBM system! By Doug Chatham.
4. Bachelor Chess . Win by mating your opponent, or marrying off your King. By Doug Chatham.
5. Bachelor Nimrod. Small variant with one each of distinctive Nimrod pieces, and of Knight. (6x6, Cells: 36) By Charles Gilman.
6. Battery Chess. Battery Chess on the Game Courier. By Abdul-Rahman Sibahi.
7. Battery Chess. Chess on a Battery shaped board, with lots of batteries. (5x10, Cells: 46) By Abdul-Rahman Sibahi.
8. Battle Room Chess. Win by getting four of your pieces in or around your enemy's gate. By John Smith.
9. Ben 39. Pieces move on squares and corners of board with 37 fixed and two movable squares. (Cells: 39) By Ben Good.
10. Beryl Chess. Variant on board of 39 triangles. (Cells: 39) By Alexandre Muñiz.
11. Bingo Chess. A cross between Chess and Bingo. (Cells: 41) By Doug Chatham.
12. Biparite Chess. Small chess variant with two phases. (5x7, Cells: 43) By Timothy R. Newton.
13. Bird Shogi. Tori Shogi, or Bird Shogi. A variant of Japanese Chess on a 7 by 7 board. (7x7, Cells: 49) Inventor: Ohashi Soei.
14. Black Holes. On 5 by 8 board with holes as pieces which also can be used for transport. (5x8, Cells: 40) By Juraj Lörinc.
15. Black Holes . On 5 by 8 board with holes as pieces which also can be used for transport. Author: Peter Aronson. Inventor: Juraj Lörinc.
16. Blind Chess. Played on the squares of half a Xiangqi board but using all the pieces. (8x4, Cells: 32)
17. Border Wars. Game played on the 42 edges of a grid, with elements of Shogi and XiangQi. (Cells: 42) By Jared B. McComb.
18. Border Wars . Game played on the 42 edges of a grid, with elements of Shogi and XiangQi. Author: Peter Aronson. Inventor: Jared B. McComb.
19. Border Wars II . Game played on line edges with Shogi-like aspects. Author: Peter Aronson. Inventor: Jared B. McComb.
20. Border Wars II. Game played on line edges with Shogi-like aspects. (Cells: 44) By Jared B. McComb.
21. Bottleneck Chess. Most pieces start the game locked up in two bottleneck parts of the board. (Cells: 41) By Köksal Karakus.
22. Bottleneck Chess . Most pieces start the game locked up in two bottleneck parts of the board. By Köksal Karakus.
23. The Bridge 41. 41 square board with bridge in the middle. (5x9, Cells: 41) By Hubert Lamontagne.
24. The Bridge41 . 41 square board with bridge in the middle. Author: Peter Aronson. Inventor: Hubert Lamontagne.
25. Building chess. Add a square after every move. Author: Abdul-Rahman Sibahi. Inventor: Abdul-Rahman Sibahi and Sergey Sirotkin.
26. Bushi shogi. Shogi variant on a two-square board! Bushi means Samurai. By Georg Dunkel.
27. Bushi Shogi. Extremely small shogi variant played with cube pieces. Author: Larry L. Smith. Inventor: Georg Dunkel.
28. By Rook Or by Crook. Chess in the round on a hexagonal board with 42 trapezoidal squares. (Cells: 42) By Jeff Rients.

C

1. Caïssa. On a 7 by 7 board with disappearing squares. (7x7, Cells: 49) By Christian Freeling.
2. Caïssa. Christian Freeling's game with a royal queen. Author: Ed Friedlander. Inventor: Christian Freeling.
3. Caliph Qi. Extension of Isis with compound colourbound pieces and overlapping royal-accessible areas. (6x9) By Charles Gilman.
4. Cannons and Crabs . A variant on a 7x6 board with Crabs (improved Pawns), and Cannons (leapers). Author: Peter Aronson. Inventor: David Short.
5. Cannons and Crabs. A variant on a 7x6 board with Crabs (improved Pawns), and Cannons (leapers). (7x6, Cells: 42) By David Short.
6. Canyon Chess. Small variant with Marshalls and Archbishops and some new rules. (8x8, Cells: 44) By Andrew Blechinger and Jarry Vega.
7. Canyon Chess. Play this small variant with Marshalls and Archbishops and some new rules! Author: Tony Quintanilla. Inventor: Andrew Blechinger and Jarry Vega.
8. Capture the Flag Chess. A translation of the classic children's game to a 42-square board. (7x6, Cells: 42) By Thomas Cameron.
9. Capture-the-flag Chess . A translation of the classic children's game to a 42-square board. Author: Peter Aronson. Inventor: Thomas Cameron.
10. Cascudo. On 44-square hexagonal board with turns consisting of cascade of moves. (Cells: 44) By David Jagger.
11. Central Point Chess. Small 7x7 game with different pieces. By QIDb602.
12. Chameleon. Chess variant on board of 41 colored squares, where pieces change type depending on color of square the move to. (7x7, Cells: 41) By Tony Quintanilla.
13. Chameleon . Chess variant on board of 41 colored squares, where pieces change type depending on color of square the move to. By Tony Quintanilla.
14. Chameleon Chess . Each player has a King and 11 Chameleons whose moves are determined by the type of square they are on. Author: Peter Aronson. Inventor: P. D. Magnus.
15. Chameleon Chess. Each player has a King and 11 Chameleons whose moves are determined by the type of square they are on. (6x7, Cells: 42) By P. D. Magnus.
16. Chec Toe. Chec Toe is a 4x4 Chess variant played with a six sided die, incorporating uniquely designed features, such as Checkering, Cross. By Simon Edward Jepps.
17. Chennis. Kyoto-Shogi-inspired variant (with alternating piece sides), with a tennis theme. By Daniel Lee.
18. Chess - the Speed Game. Photo's of set. Author: Hans L. Bodlaender. Inventor: ? denOude.
19. Chess - The Speed Game . Chess on a 5 by 6 board. Author: Marek14 . Inventor: ? denOude.
20. Chess - The Speed Game. Chess on a 5 by 6 board. (5x6, Cells: 30) Author: Hans L. Bodlaender. Inventor: ? denOude.
21. Chess Attack. Play this small 5x6 variant with Jocly. Author: Michel Gutierrez and Jérôme Choain. Inventor: Werner Kling.
22. Chess in the Fast Lane . The 64-squares of a regular Chess board are grouped into 41 "regions" producing a small board that looks full size. Author: Peter Aronson. Inventor: Francois Tremblay.
23. Chess in the Fast Lane. The 64-squares of a regular Chess board are grouped into 41 "regions" producing a small board that looks full size. (8x8, Cells: 41) By Francois Tremblay.
24. Chess on a Board with 37 Squares . Game with full Chess arrays minus a Pawn on a 37 square board without any corners. Author: Andrew Juell. Inventor: Alfred Pfeiffer.
25. Chess on a board with 37 squares. Game with full Chess arrays minus a Pawn on a 37 square board without any corners. (Cells: 37) Author: Alfred Pfeiffer and Hans L. Bodlaender. Inventor: Alfred Pfeiffer.
26. Chess on a Soccer Ball. Missing description (Cells: 32) By David Cannon.
27. Chess on a Soccer Ball . Chess played on the 20 hexagons and 12 pentagons of a soccer ball. By David Cannon.
28. Chess Remix. Create your chess variant. () By Alexandr Oleshko.
29. Chess with Different Periods . A Turn-related variant of Los Alamos Chess. Players may play with many modest variants. By Yu Ren Dong.
30. Chess with Different Periods. Missing description (6x6, Cells: 36) By Yu Ren Dong.
31. Chess37. A chess variant on a board with 37 squares where pieces outside of the center 9 squares move like Kings. (Cells: 37) By David Howe.
32. Chess37 . A chess variant on a board with 37 squares where pieces outside of the center 9 squares move like Kings. Author: Andrew Juell. Inventor: David Howe.
33. Chesscala. Missing description (6x8, Cells: 48) By Francois Tremblay.
34. Chessence . Variant on a 9 x 6 board with 8 missing squares, immobile Kings, and 9 pieces whose movement depends on their spatial relation. Author: Alfred Pfeiffer. Inventor: Jim Winslow.
35. Chessence. Variant on a 9 x 6 board with 8 missing squares, immobile Kings, and 9 pieces whose movement depends on their spatial relation. (6x9, Cells: 46) Author: Peter Aronson. Inventor: Jim Winslow.
36. Chessence. Units move and capture depending on their proximity to their colleagues. Author: Ed Friedlander. Inventor: Jim Winslow.
37. Chessence. Small variant with many possible winning conditions. By Stephen Sniderman.
38. Chestria. Each player has 11 randomly selected pieces in this game of placement and flipping. (3x(5x5), Cells: 43) By Jared B. McComb.
39. Chinese court. Missing description By Daniil Frolov.
40. Chipps. Let all pieces gain a chip by moving to the other side of 4 by 8 board. (4x8, Cells: 32) By Mark Leff.
41. Chogo-44. Game with pawns and kings with co-enclosure capture. Author: Jeff Rients. Inventor: David Jagger.
42. Chogo44. Game with pawns and kings with co-enclosure capture. (7x8, Cells: 44) By David Jagger.
43. Chromopolis. `Almost' colorbound pieces on a cylindrical board of 40 squares. (7x6, Cells: 40) By Alexandre Muñiz.
44. Clash of Command . Chesslike game with pieces that change and leave behind other pieces on special board.
45. Clash of Command. Chesslike game with pieces that change and leave behind other pieces on special board. (Cells: 41)
46. Claustrophobia. Played utilizing 46 squares of a chessboard, using new unique pieces, all of which can be represented by the standard pieces. (5x8, Cells: 46) By Charles Daniel.
47. Color Chess. Freeware program playing variant on 36 colored squares. By Maarten Bodlaender.
48. Color Chess. Chess variant on board with 39 squares with five different colors. (6x6, Cells: 36) Author: Hans L. Bodlaender. Inventor: Maarten Bodlaender.
49. Combination Chess . Pieces give their movement capabilities to friendly pieces in their zone of influence. By David Howe.
50. Combination Chess. Pieces give their movement capabilities to friendly pieces in their zone of influence. (Cells: 39) By David Howe.
51. Compact Chess. Small version popular in South Africa. Author: Ed Friedlander.
52. Compact Hex Chess. 2 normal hex armies on a board reduced to sides of length 5. (9x9, Cells: 61) By Charles Gilman.
53. Congo. Animals fight on 7 by 7 board. Author: Ed Friedlander. Inventor: Christian Freeling.
54. Congo. Demian Freeling's Congo on the Game Courier. Author: Abdul-Rahman Sibahi. Inventor: Demian Freeling.
55. Congo. Animals fight on 7 by 7 board. (7x7, Cells: 49) Author: Christian Freeling. Inventor: Demian Freeling.
56. Contest to design a chess variant on a board with 38 squares.. Missing description Author: Hans L. Bodlaender.
57. Contest to design a chess variant on a board with 39 squares.. Missing description Author: Hans L. Bodlaender.
58. Contest to design a chess variant on a board with 40 squares. Missing description Author: Hans L. Bodlaender.
59. Contest to design a chess variant on a board with 41 squares. Missing description Author: Hans L. Bodlaender.
60. Contest to design a chess variant on a board with 42 squares. Missing description Author: Hans L. Bodlaender.
61. Contest to design a chess variant on a board with 43 squares. Missing description Author: Glenn Overby II and Hans L. Bodlaender.
62. Contest to design a chess variant on a board with 44 squares. Our annual N-squares chess variant design competition. Author: Hans L. Bodlaender.
63. Convergent Chess. Attack king directly or move to its home square on board with 40 squares. (6x6, Cells: 40) By A.J. Winkelspecht.
64. Convergent Chess . Attack king directly or move to its home square on board with 40 squares. By A.J. Winkelspecht.
65. Courtyard. Variant on 5 by 8 board. (5x8, Cells: 40)
66. Courtyard . Variant on 5 by 8 board. Author: Marek14 .
67. Courtyard Photographs. Photo's of constructed set of 40 squares variant. Author: Fergus Duniho.
68. Crazy 38's . On strange board with 38 squares. Author: Robert Price. Inventor: Ben Good.
69. Crazy 38's. On strange board with 38 squares. (Cells: 38) (Recognized!) By Ben Good.
70. Crazy 38's. Ben Good's Crazy 38's on the Game Courier. Author: Abdul-Rahman Sibahi. Inventor: Ben Good.
71. Cube Shogi. Shogi with cube-shaped pieces. By John Smith.
72. Cube+ . Three dimensional chess variant with 38 squares. Author: Marek14 . Inventor: Jim Aikin.
73. Cube+. Three dimensional chess variant with 38 squares. (3x(3x4), Cells: 38) By Jim Aikin.
74. Cycle Chess . Variant on a board with 39 cells, three of which are special. Author: David Howe. Inventor: Andy Kurnia.
75. Cycle Chess. Variant on a board with 39 cells, three of which are special. (6x6, Cells: 39) By Andy Kurnia.

D

1. Dagger Chess. Hexagonal variant on board with 39 squares. (Cells: 39)
2. Danadazo. Game played on the 47 edges of a grid with rounded corners, borrowing elements from Tafl. (Cells: 47) By Jared B. McComb.
3. Dart Chess . Chess on a 6x6 board with a new piece: the Dart. Author: Marek14 . Inventor: Darren Izzard.
4. Dart Chess. Chess on a 6x6 board with a new piece: the Dart. (6x6, Cells: 36) By Darren Izzard.
5. Dave's Example Game. This is Dave Howe's example of a user-posted game. (2x2, Cells: 4) By David Howe.
6. Demi Chess . Chess on a 4 by 8 board. Author: Marek14 . Inventor: Peter Krystufek.
7. Demi chess. Chess on a 4 by 8 board. (4x8, Cells: 32) Author: Hans L. Bodlaender. Inventor: Peter Krystufek.
8. Demi-Chess . Chess on a 4 by 8 board. Author: Uwe Wiedemann. Inventor: Peter Krystufek.
9. Diamond Chess . Chess variant on diamond shaped board with 40 squares. Author: Jens Markmann. Inventor: Bruce Mills.
10. Diamond Chess. Chess variant on diamond shaped board with 40 squares. (Cells: 40) By Bruce Mills.
11. Diamond Chess. Chess on a Diamond board. By Abdul-Rahman Sibahi.
12. Diana . Chess on a 6 by 6 board. Author: Marek14 . Inventor: ? Hopwood.
13. Diana. Chess on a 6 by 6 board. (6x6, Cells: 36) Author: Hans L. Bodlaender. Inventor: ? Hopwood.
14. Diana Chess . Chess on a 6 by 6 board. Author: Uwe Wiedemann. Inventor: ? Hopwood.
15. Diana Chess. Miniature chess game from the late 1800's. Author: Ed Friedlander. Inventor: ? Hopwood.
16. Diminuendo Chess. Hexagonal variant: captured pieces are dropped in the center and diminished, not removed. (7x8, Cells: 43) By David Jagger.
17. Dino-Czars. Battle between rival dinosaurs on a board of 42 triangles, where facing counts. (Cells: 42) By Clark Rodeffer.
18. Dino-Czars . Battle between rival dinosaurs on a board of 42 triangles, where facing counts. By Clark Rodeffer.
19. Diplomat Chess. Round-board variant with a Diplomat to suborn opponents. (Cells: 43) By Carlos Martin-Fuertes.
20. Diplomat Chess . Round-board variant with a Diplomat to suborn opponents. By Carlos Martin-Fuertes.
21. Do-or-die Chazz. Pawns that can move backward and kings only on 5 by 8 board. (8x5, Cells: 40)
22. Do-or-die Chazz . Pawns that can move backward and kings only on 5 by 8 board. Author: Marek14 .
23. Do-or-die Chess. Chess on an 8-by-5 board. Three ranks have been removed. (8x5, Cells: 40)
24. Do-or-die Chess . Chess on 5 by 8 board: three rows removed. Author: Marek14 .
25. Dodl schach: photo's. Photo's of a very small chess variant set. Author: Hans L. Bodlaender.
26. Dodl-schach. Photo's of Dodl-schach: a very small chess variant. Author: Hans L. Bodlaender.
27. Dodl-schach . A truly small variant. Author: Marek14 .
28. Dodl-schach. A truly small variant. (6x4, Cells: 24) Author: Hans L. Bodlaender.
29. Dollar Chess . Almost 1-Dimensional Variant on a Dollar sign-shaped board. Author: Marek14 . Inventor: Sergey Sirotkin.
30. Dragonfly. Christian Freeling's 7x7 Chessgi type variant. No Queens. Pawns don't drop. Author: Gary K. Gifford. Inventor: Christian Freeling.
31. Dragonfly. Drop pieces you have taken on a 7 by 7 board. (7x7, Cells: 49) By Christian Freeling.
32. Dream Chess 46. 46-squasre variant played from opposite corners of a FIDE board with the other corners removed. (8x8, Cells: 46) By Charles Gilman.
33. Dream Chess 47. 47-square variant played from opposite corners of a 7 by 7 board with the other corners removed. (7x7, Cells: 47) By Charles Gilman.
34. Duel Chess. PBM Preset for 43-space variant played on two boards. Author: Fergus Duniho. Inventor: Erez Schatz.
35. Duel Chess. Captured pieces are sent to a separate Duel board to see who is eliminated and who returns. (2x(5x7), Cells: 43) By Erez Schatz.
36. Dueling Archbishops. Chess game with only six cells but with a piece that morphs into four different forms. Author: Jeremy Gabriel Good.
37. Dueling Archbishops . Small chess variant on 2 by 3 board.
38. Dueling Archbishops. Chess variant on 2 by 3 board. (2x3, Cells: 6)

E

1. Echos. Transform your non-attacked, non-royal units as you like. Author: Ed Friedlander. Inventor: Vladimir Pribylinec.
2. Elena . Chess on 5 by 6 board. Author: Marek14 . Inventor: Sergey Sirotkin.
3. Elena Chess . Chess on 5 by 6 board. Author: Uwe Wiedemann. Inventor: Sergey Sirotkin.
4. Elena Chess. Chess on 5 by 6 board. (5x6, Cells: 30) By Sergey Sirotkin.
5. En passant Chess. Orthodox chess on a shortened board of only 7 rows. Encourages more en passant moves.
6. En Passant Chess of Ingo Althofer. This is just FIDE Chess, but with board contracted by one row. Try it out. Author: Jeremy Gabriel Good.
7. Epsilon Eridani . A 44-square version of Achernar. By Roberto Lavieri.
8. Epsilon Eridani. 44-square version of Achernar. (9x5, Cells: 44) By Roberto Lavieri.
9. Equestrian Chess. On diamond shaped board with reentry squares and different pieces. (Cells: 41)
10. Equestrian Chess . On diamond shaped board with reentry squares and different pieces.
11. Eric's 40-square Fiasco . Game on 5 by 8 board with three pieces that start in reserve. Author: Marek14 . Inventor: Eric Richardson.
12. Eric's 40-square Fiasco!. Game on 5 by 8 board with three pieces that start in reserve. (5x8, Cells: 40) By Eric Richardson.
13. Espionage chess. Spy can only be captured in turn after it has moved in 41-square variant. (7x7, Cells: 41) By Sergey Sirotkin.
14. Espionage Chess . Spy can only be captured in turn after it has moved in 41-square variant. Author: Peter Aronson. Inventor: Sergey Sirotkin.
15. Etcetera . This variant has some elements of Chinese Chess. Also, pieces cannot capture pieces of their own type. By Roberto Lavieri.
16. Etcetera. This variant has some elements of Chinese Chess. Also, pieces cannot capture pieces of their own type. (7x8, Cells: 56) By Roberto Lavieri.
17. Evolution Chess. 42-square game where each player starts with 20 Knights that evolve and a King. (7x6, Cells: 42)
18. Evolution Chess . 42-square game where each player starts with 20 Knights that evolve and a King.
19. Extended Half-Chess . Variant on 4 by 10 board. Author: Uwe Wiedemann.
20. Extended Half-chess. Variant on 4 by 10 board. (4x10, Cells: 40)

F

1. Family Matters Chess . Chess variant of warring families on 41 and 64 square boards. By Tomas Forsman.
2. Family matters chess (small). Variant on 41 square board. (Cells: 41) By Tomas Forsman.
3. Fanorona Chess . Variant played on a Fanorona board with capture by approach and by withdrawal. By Peter Aronson.
4. Fanorona Chess. Variant played on a Fanorona board with capture by approach and by withdrawal. (5x9, Cells: 45) By Peter Aronson.
5. Fault Line. Fault Line. (8x6, Cells: 40) By Patrick Riley.
6. Feeble Los Alamos Chess. Los Alamos Chess using Feeble pieces. (6x6, Cells: 36) By David Howe.
7. Feeble Los Alamos Chess . Los Alamos Chess using Feeble pieces. By David Howe.
8. Five-Minute Poppy Shogi. Small shogi variant on a 4 by 5 board. (4x5, Cells: 20) Author: Hans L. Bodlaender. Inventor: Oyama Yasuharu.
9. Fleap. Pieces move as equihoppers, but become FIDE pieces after being captured. (5x9, Cells: 43) By Gavin King.
10. Flip Chess. Missing description Author: Ed Friedlander. Inventor: John William Brown.
11. Flip Chess . Pieces have two sides with different movements on board of 38 squares. Author: Hans L. Bodlaender. Inventor: John William Brown.
12. Flip Chess and Flip Shogi. Pieces have two sides with different movements on board of 38 squares. (7x6, Cells: 38) (Recognized!) By John William Brown.
13. Flip Shogi. Missing description Author: Ed Friedlander. Inventor: John William Brown.
14. FlipChess. Chess variant in which pieces keep changing state. By M. El M. Messaoudi.
15. FlipFlop. A minimalistic Chess-like game with only one type of piece. Author: Ola Sassersson. Inventor: Masahiro Nakajima.
16. Four File Chess. Variant on 4 by 10 board. (4x10, Cells: 40) By Kris Barski.
17. Free corners chess. In the corners of seven by seven board, three squares form together one field. (7x7, Cells: 41) By Sergey Sirotkin.
18. Free Corners chess . In the corners of seven by seven board, three squares form together one field. Author: Peter Aronson. Inventor: Sergey Sirotkin.
19. Fusion Diamond 41. A Fusion Chess variant played on a diamond shaped board of 41 squares. By Fergus Duniho.
20. Fusion Diamond 41 . A Fusion Chess variant played on a diamond shaped board of 41 squares. By Fergus Duniho.
21. Fusion Diamond 41. A Fusion Chess variant played on a diamond shaped board of 41 squares. (Cells: 41) By Fergus Duniho.

G

1. Gnu . Simple game featuring the Gnu as promotee. By Joost Aan de Brugh.
2. Gnu. Simple game featuring the Gnu as promotee. (5x10, Cells: 50) By Joost Aan de Brugh.
3. Goal Box Chess. Game on 42 squares with no King and the goal of placing pieces into 2 special squares. (5x8, Cells: 42) By Kevin McPartland.
4. Goal Box Chess . Game on 42 squares with no King and the goal of placing pieces into 2 special squares. Author: Peter Aronson. Inventor: Kevin McPartland.
5. Goatsuckers. Small modern shogi variant on 5 by 5 board. (5x5, Cells: 25) and Patricia Hernandez.
6. Green Chess. More than 100 chess variants playable online. By János M. Uray.
7. Gufuu Shogi . Tiny variant on a 2x3 board with four pieces. By Georg Dunkel.
8. Guschess . Pieces can freely move in one of 38 areas on the board. Author: Marek14 . Inventor: Gustavo A. Vargas.
9. Guschess. Pieces can freely move in one of 38 areas on the board. (8x8, Cells: 38) By Gustavo A. Vargas.

H

1. Hajiku Shogi. Inspired by Shogi and Chu Shogi. Pieces can both promote and demote in promotion zone. By Edward Webb.
2. Half Chess. 4x8 board, plays well. Author: Ed Friedlander. Inventor: John Groeneman.
3. Half Chess. On a 4 by 8 board without pawns. (4x8, Cells: 32) By John Groeneman.
4. Half Chess . On a 4 by 8 board without pawns. Author: Marek14 . Inventor: John Groeneman.
5. Half Courier. Missing description Author: Nick Wolff. Inventor: Charles Gilman.
6. Half Courier. A Pawnless variant rearranging a slightly simplified Courier back rank onto two ranks. (6x8, Cells: 48) By Charles Gilman.
7. Half Shogi and Half Xiang Qi. Applying the principles of Half Chess to Oriental games. (5x9, Cells: 45) By Charles Gilman.
8. Halloween Knight Court. Halloween-themed variant on a tiny board. (3x3, Cells: 9)
9. Halloween Knight Court . Halloween-themed variant on a tiny board.
10. Hans 38 Gift Chess . Eric Greenwood's chess on a board with 38 squares. Author: Marek14 . Inventor: Eric V. Greenwood.
11. Hans 38Special Chess. On a board with 38 squares. (6x6, Cells: 38) By Eric V. Greenwood.
12. Hans 40 Gift Chess . Pieces are digits or letters and move like their form on 5 by 8 board. Author: Marek14 . Inventor: Köksal Karakus.
13. Hans 40 Gift Chess. Pieces are digits or letters and move like their form on 5 by 8 board. (5x8, Cells: 40) By Köksal Karakus.
14. Hans37 Chess. Chess variant for four players on a board of 37 squares. (Cells: 37) By Ralph Betza.
15. Hans38 Chess. A form of Chess with a Limited Supply of Squares; entry of the 38-challenge. (8x8, Cells: 38) By Ralph Betza.
16. Hans38 Chess. Eric Greenwood's chess on a board with 38 squares. (6x6, Cells: 38) By Eric V. Greenwood.
17. Haynie's Primary Chess. On 6 by 6 board without knights. (6x6, Cells: 36) Author: Hans L. Bodlaender. Inventor: Billy Haynie.
18. Heaven . Pieces trying to reach a goalfield can only move if in reach of a friendly piece. Author: David Howe. Inventor: Rob Nierse.
19. Heaven. Pieces trying to reach a goalfield can only move if in reach of a friendly piece. (Cells: 39) By Rob Nierse.
20. Herd. Experimental variant with jumping pieces on 7 by 7 board. (7x7, Cells: 49) By Sergey Sirotkin.
21. Hex 39 . Hexagonal chess variant on small board with simple rules. Author: Marek14 . Inventor: Torben Mogensen.
22. Hex Shogi 41. Hexagonal shogivariant on board with 41 spaces. By Fergus Duniho.
23. Hex Shogi 41. Hexagonal shogivariant on board with 41 squares. (Cells: 41) By Fergus Duniho.
24. Hex39. Hexagonal chess variant on small board with simple rules. (Cells: 39) By Torben Mogensen.
25. Hexagonal Chess with Hexagonalers. Missing description By Jeremy Gabriel Good.
26. Hexapawn . Martin Gardner's miniature game of three pawns vs the pawns. Author: Robert Price. Inventor: Martin Gardner.
27. Hexapawn. Martin Gardner's miniature game of three pawns vs the pawns. (3x3, Cells: 9) Author: Robert Price. Inventor: Martin Gardner.
28. Hexes Chess. Hexes Chess now available for play on the Game Courier! Author: Mike Layfield and Tony Quintanilla. Inventor: Mike Layfield.
29. Hexes Chess . Link: Hexagonal Chess in 54 hexes, using orthodox pieces. Includes enhanced Pawn movement and castling. The board is elongated.&. By Mike Layfield.
30. Hexes Chess . Hexes Chess requires fewer chess pieces and a smaller board than conventional chess, but increases the mobility of each piece. Author: Ed Friedlander. Inventor: Mike Layfield.
31. Hexes Chess . Hexes Chess requires fewer chess pieces and a smaller board than conventional chess, but increases the mobility of each piece. Author: Mike Layfield and Tony Quintanilla. Inventor: Mike Layfield.
32. Hexes Compressed Chess . Link: This version of Hexagonal Chess has rotated cells so that the angles point up and down. By Mike Layfield.
33. Hexetera. Play Hexetera on the Game Courier! Author: Tony Quintanilla. Inventor: Roberto Lavieri.
34. Hexetera. Small hexagonal variant with some elements of Chinese Chess. (Cells: 44) By Roberto Lavieri.
35. Hexetera . Download Hexetera for ZOG! Also includes the game in squares: Etcetera! By Roberto Lavieri.
36. Hibryd I. Game played on 4x4 board with a King and four Pawns each, neutral pieces, multiple forms of capture and many ways of winning. (4x4, Cells: 16) By Jared B. McComb.
37. Hibryd III. An exotic three-player variant played on a board of 42 hexes with multiple victory conditions. (Cells: 42) By Jared B. McComb.
38. Hippodrome. Solitaire game using a small board. (4x4, Cells: 16) By Andy Lewicki.
39. Hippodrome. Solitaire game using a small board. Author: Doug Chatham. Inventor: Andy Lewicki.
40. Hitchhiker Chess. Get your Hitchhiker to the Restaurant at the other End of the Board; inspired by Douglas Adams' books. (Cells: 42) By Dan Troyka.
41. Hitchhiker Chess . Get your Hitchhiker to the Restaurant at the other End of the Board; inspired by Douglas Adams' books. By Dan Troyka.
42. Hole Chess. Variant on a board of 44 squares with two holes that pieces can be dragged into. Author: Peter Aronson. Inventor: Gary K. Gifford.
43. Hole Chess. Variant on a board of 44 squares with two holes that pieces can be dragged into. (7x10, Cells: 44) By Gary K. Gifford.
44. Holy War . Variant with 6 by 6 board with four additional corner squares. By Fergus Duniho.
45. Holywar. Variant with 6 by 6 board with four additional corner squares. (6x6, Cells: 40) By Fergus Duniho.
46. Hopgi . Small-board variant of Chessgi with an L-shaped board, linked pairs of Kings, where all pieces can move like a Mao-hoppers. By Peter Aronson.
47. Hopgi. Small-board variant of Chessgi with an L-shaped board, linked pairs of Kings, where all pieces can move like a Mao-hoppers. (7x7, Cells: 43) By Peter Aronson.
48. Horus . Game with Royal Falcons where all pieces start off board and most captures return pieces to owner's hand. By Peter Aronson.
49. Horus. Game with Royal Falcons where all pieces start off board and most captures return pieces to owner's hand. (7x7, Cells: 44) By Peter Aronson.
50. Hourglass Chess . 38-Square board in shape of Hourglass. Author: Uwe Wiedemann. Inventor: Uri Bruck.
51. Hourglass Chess. 38-Square board in shape of Hourglass. (7x6, Cells: 38) By Uri Bruck.
52. HP Minichess . Small chess variant that could be played against a pocket calculator. Author: Marek14 .
53. HP-minichess. Small chess variant that could be played against a pocket calculator. (5x5, Cells: 25) Author: Hans L. Bodlaender.

I

1. Infantry Chess. Small chess variant with short range pieces. (9x9, Cells: 43) By Erez Schatz.
2. Infantry Chess . Small chess variant with short range pieces. Author: Uri Bruck. Inventor: Erez Schatz.
3. Inside-out chess. With two kings per player and squares with a square inside. (6x6, Cells: 44) By Maarten Bodlaender.
4. Interdependent Chess . A 42 square variant in which pieces borrow capturing ability from other pieces. By Fergus Duniho.
5. Interdependent Chess. A 42 square variant in which pieces borrow capturing ability from other pieces. (6x7, Cells: 42) By Fergus Duniho.
6. Interdependent Chess. A 42 square variant in which pieces borrow capturing ability from other pieces. By Fergus Duniho.
7. Interview with Darren Izzard. An interview with the winner of the contest to design a chess variant on a board with 40 squares. Author: Hans L. Bodlaender.
8. Interview with Seth McGinnis. Interview with the winner of the contest to design a chess variant on 39 squares. Author: Hans L. Bodlaender.
9. Interview with Tony Quintanilla. Interview with the winner of the 41-square Chess Variant Competition. Author: Hans L. Bodlaender.
10. Isis and Cam. Two variants based on ancient English universities and the rivers near them. (6x8, Cells: 48) By Charles Gilman.
11. Italian Miniature Progressive Chess. 5x5 progressive game as played in Italy. Author: Ed Friedlander.
12. Ito Shogi. Missing description (1x31, Cells: 21) By Jonathan H Rutherford.
13. Izzard, Darren. An interview with the winner of the contest to design a chess variant on a board with 40 squares. Author: Hans L. Bodlaender.

J

1. Judkin's Shogi. Small shogi variant on 6 by 6 board. (6x6, Cells: 36) Author: Hans L. Bodlaender. Inventor: ? Judkin.
2. Judkin's Shogi. Modern small shogi variant preset. Author: Charles Daniel and Armin Liebhart. Inventor: ? Judkin.
3. Just a funny board with 40 squares. A board with 40 squares without rules. (Cells: 40) Author: Claude Chaunier.

K

1. Kaos: The Game . Multiplayer game on a 7x7 board. By Robert Peeples.
2. Keltic Chess. Adapted orthochess on a 43-square, fidchell-inspired board. (9x7, Cells: 43) By David Jagger.
3. King and Queen . Variant on cross-shaped board with 39 squares. Author: David Howe. Inventor: Dennis Xay Voong.
4. King and Queen. Variant on cross-shaped board with 39 squares. (Cells: 39) By Dennis Xay Voong.
5. Kings and Pawns. Proprietary game on 8 by 7 board with two types of pieces and no capturing. (7x8, Cells: 56) Author: Hans L. Bodlaender.
6. Kings and Pawns . Proprietary game on 8 by 7 board with two types of pieces and no capturing. Author: Peter Aronson.
7. Knight Court. Mate the knight with three pieces per player on a three by three board.
8. Knight Court. Mate the knight with three pieces per player on a three by three board. (3x3, Cells: 9)
9. Knight Court Chess. When you take an opponent's piece, he gets to drop it back on the board. Object: Checkmate knight. Author: Jeremy Gabriel Good.
10. Knight-Tac-Toe. Small variant with only kings and knights where you must get three pieces in line in the center of the board. (5x5, Cells: 25) By David Howe.
11. Knight-Tac-Toe . Win by placing 3 pieces in a row. By David Howe.
12. Knightsbridge . 14 knights against 14 knights on a 7 by 7 board. Author: Uwe Wiedemann.
13. Knightsbridge. 14 knights against 14 knights on a 7 by 7 board. (7x7, Cells: 49) Author: David E. Smith.
14. Kozeriai. A 5x7 variant of Shogi. (5x7, Cells: 35) By Jan Paerke.
15. Krieg. Two player game on a four-by-four board. Article. (4x4, Cells: 16) By Jeff Zeitlin.
16. Kylatori Sunset. Small variant combining replacement, custodian and coordination capture. (6x8, Cells: 48) By Tim Stiles.
17. Kyoto Shogi. Modern 5x5 Shogi variant where pieces promote and unpromote with every move. Author: Greg Strong.

L

1. L Shaped Chess. 2 player variant with some elements of 4-player ones. (7x7, Cells: 45) By Charles Gilman.
2. Ladder Chess. Chess variant on a `skewed' board with 40 squares. (Cells: 40) By Sergey Sirotkin.
3. Ladder Chess . Chess variant on a `skewed' board with 40 squares. Author: Uwe Wiedemann. Inventor: Sergey Sirotkin.
4. The Last Mourning. On board with 38 squares and Jesters. (Cells: 38) By Lester Jones.
5. Leap Chess . Game with manditory captures and other Checkers-like elements on a board of 44 squares. By Ken Franklin.
6. Leap Chess. Game with mandatory captures and other Checkers-like elements on a board of 44 squares. (6x8, Cells: 44) By Ken Franklin.
7. Letter Chess. Pieces are a diagram that shows a letter and their movement capabilities. (7x7, Cells: 49) By Ed Pegg Jr..
8. Life, the Universe and Everything. 42-square double-move variant with unusual pieces, inspired by Douglas Adams' fiction. (6x7, Cells: 42) By João Pedro Neto.
9. Life, the Universe and Everything . 42-square double-move variant with unusual pieces, inspired by Douglas Adams' fiction. Author: Peter Aronson. Inventor: João Pedro Neto.
10. Limited Square Chess. A form of Chess with a Limited Supply of Squares; entry of the 38-challenge. (8x8, Cells: 38) By Ralph Betza.
11. Limiting Chess. On a 4x8 board, with the objective of capturing all the opponent's pieces. (8x4, Cells: 32) By Sergey Sirotkin.
12. Litrof. Variant on 42 squares played with stacks of Icehouse pyramids, where different color pyramids give stacks different powers. (5x8, Cells: 42) By Glenn Overby II.
13. Little Dragon Chess . Modern small variant of Xiangqi on board of 41 squares. By Peter Aronson.
14. Little Dragon Chess. Modern small variant of Xiangqi on board of 41 squares. (5x7, Cells: 41) By Peter Aronson.
15. Little Trio. Missing description Author: Nick Wolff. Inventor: Jared B. McComb.
16. Little Trio. Small variant combining Chess, Shogi, and Xiang-Qi. (7x7, Cells: 49) By Jared B. McComb.
17. Loonybird. Pieces on a seven by seven board move differently when they take. Author: John Smith. Inventor: Christian Freeling.
18. Loonybird. Pieces on a seven by seven board move differently when they take. Author: Ed Friedlander. Inventor: Christian Freeling.
19. Loonybird. Pieces on a seven by seven board move differently when they take. (7x7, Cells: 49) By Christian Freeling.
20. Los Alamos Chess. Used for the first computer chess program. Author: Ed Friedlander.
21. Los Alamos Chess . Chess on a 6x6 board. Author: David Howe.
22. Los Alamos Chess. First known variant played by a computer. (Recognized!) Author: Jason Shields.
23. Los Alamos Extinction Chess with Bunkers . On 6 by 6 board with two additional bunkers, and extension chess rules. By Doug Chatham.
24. Los Alamos Extinction Chess With Bunkers. On 6 by 6 board with two additional 2 by 2 bunkers, and extension chess rules. (2x(6x6), Cells: 44) By Doug Chatham.
25. Los Alamos variant. Chess on a 6 by 6 board from the early days of computing. (6x6, Cells: 36) (Recognized!) Author: Hans L. Bodlaender.
26. Lotus Boards. Configurations for Future Chess Variant Contests.
27. Lotus-39. Chess variant on special shaped board with 39 squares. (Cells: 39)

M

1. Magician Chess . Variant on 7 by 7 board with nine holes and magician able to move holes. Author: Jens Markmann. Inventor: Jonathon Whittle.
2. Magician Chess. Variant on 7 by 7 board with nine holes and magician able to move holes. (7x7, Cells: 40) By Jonathon Whittle.
3. Magician Chess . Version using Alfaerie graphics. Author: David Howe. Inventor: Jonathon Whittle.
4. McGinnis, Seth. Interview with the winner of the contest to design a chess variant on 39 squares. Author: Hans L. Bodlaender.
5. Med Chess . Diagonal board game with a mix of traditional, modern and Shogi pieces. Author: Uri Bruck. Inventor: Erez Schatz.
6. Med Chess. Diagonal board game with a mix of traditional, modern and Shogi pieces. (8x8, Cells: 44) By Erez Schatz.
7. Mercurial Chess. A variant on 42 squares with a satallite board and the rescue of captured pieces. (6x6, Cells: 42) By Mark Hedden.
8. Mercurial Chess . A variant on 42 squares with a satallite board and the rescure of captured pieces. Author: Peter Aronson. Inventor: Mark Hedden.
9. Microshogi. Small shogi variant on a 4 by 5 board. (4x5, Cells: 20) Author: Hans L. Bodlaender. Inventor: Oyama Yasuharu.
10. Microshogi . Small shogi variant on a 4 by 5 board. Inventor: Oyama Yasuharu.
11. Mini Burmese Chess. Small variant of Burmese Chess. (6x6, Cells: 40) By A.J. Winkelspecht.
12. Mini Burmese Chess . Small variant of Burmese Chess. By A.J. Winkelspecht.
13. Mini Fivequarters. The Fivequarters approach to 4-player variants, applied to 6x6 variants. (9x9, Cells: 45) By Charles Gilman.
14. Mini four player chess. Missing description (8x8, Cells: 48) By Daniil Frolov.
15. Mini Hexchess. McCooey's Hexagonal Chess on smaller board. Author: Abdul-Rahman Sibahi. Inventor: Dave McCooey.
16. Mini HexChess. Small hexagonal chess variant. (Cells: 37) By Dave McCooey.
17. Mini Slanted Escalator Chess . Chess on smaller asymmetric board. Author: Peter Aronson. Inventor: David Short.
18. Mini Slanted Escalator Chess. Chess on smaller asymmetric board. (8x6, Cells: 44) Author: Hans L. Bodlaender and David Short. Inventor: David Short.
19. Mini Thunder Chess. A small-scale hybrid of Metamorph Chess, Fusion Chess, and Assimilation Chess. By Fergus Duniho.
20. Mini Thunder Chess. A small-scale hybrid of Metamorph Chess, Fusion Chess, and Assimilation Chess. (6x7, Cells: 42) By Fergus Duniho.
21. Mini Thunder Chess . A small-scale hybrid of Metamorph Chess, Fusion Chess, and Assimilation Chess. By Fergus Duniho.
22. Mini-Shogi. Missing description Author: Ed Friedlander.
23. Miniature Chess. From an old Martin Gardner column in "Scientific American". Author: Ed Friedlander. Inventor: Martin Gardner.
24. Miniature Chess. The smallest variant in which every legal move can be made as in FIDE Chess. Author: Jason Shields. Inventor: Martin Gardner.
25. Minima. johnnyluken. (6x6, Cells: 64) By Johnny Luken.
26. Minishogi. On a 5 by 5 board. (5x5, Cells: 25) (Recognized!) Author: Hans L. Bodlaender. Inventor: Shigenobu Kusumo.
27. Minishogi setuper. Minishogi you can set up pieces at beginning of the game. (5x5, Cells: 25) By (zzo38) A. Black.
28. Minixiang. Xiang Qi's short-range pieces come into their own on a small board. (5x6, Cells: 30) By Charles Gilman.
29. MiniXiangqi. S. Kusumoto's MiniXiangqi - Chinese Chess on a 7x7 board (with zrf). By M Winther.
30. Monarch Hexagonal Chess. Proprietary hexagonal variant. Author: Ed Friedlander. Inventor: Jean de Poel.
31. Monkey King Chess. Monkey King fights Goblin King on 44 squares board in game with oriental influences. Author: Peter Aronson. Inventor: Peter Gelman.
32. Mono-dimensional Chess . Small, one dimensional variant with unorthodox pieces. Author: Glenn Overby II. Inventor: Luiz Carlos Campos.
33. Moon Chess . Played with a Xiangqi set, but with different rules. Author: Peter Aronson.
34. More 10. Chessvariant on a board with 10 squares. Author: Tony Quintanilla. Inventor: Roberto Lavieri.
35. More10. Chessvariant on a board with 10 squares. (2x5, Cells: 10) By Roberto Lavieri.
36. More10 . Chessvariant on a board with 10 squares. By Roberto Lavieri.
37. Motorotor. Variant where two platforms slowly orbit a central board. (11x11, Cells: 43) By Gavin King.
38. Motorotor. Play this small variant with a rotating board. Author: Fergus Duniho. Inventor: Gavin King.
39. Mulligan Stew Chess . 42-Square Swapping-Mage Teleporting-Assassin Dual-Color-Bound-King Limited-Double-Move Leaping-Pawn Chess. By Peter Aronson.
40. Mulligan Stew Chess. 42-Square Swapping-Mage Teleporting-Assassin Dual-Color-Bound-King Limited-Double-Move Leaping-Pawn Chess. (6x7, Cells: 42) By Peter Aronson.
41. My38 Chess. Variant on board with 38 squares. (Cells: 38)

N

1. Nana-Shogi. Shogi variant on a tiny board. By Georg Dunkel.
2. Narnia Chess. Chess played on both the outside and inside of a soccer ball. (Cells: 52) By David Cannon.
3. Narnia Chess . Chess, played on both the outside and inside of a social ball, with the Pentagons as "gateways" between the two. By David Cannon.
4. Narrow Chess . Variant on 2 by 20 board. Author: Marek14 . Inventor: Peter Aronson.
5. Narrow Chess. Variant on 2 by 20 board. (2x20, Cells: 40) By Peter Aronson.
6. Neighbors. Try to capture the most pieces on a 42-square board completely filled with neutral pieces. (7x6, Cells: 42) By Rob Nierse.
7. Neighbors . Try to capture the most pieces on a 42-square board completely filled with neutral pieces. Author: Peter Aronson. Inventor: Rob Nierse.
8. Neutron 45. Variant of the game Neutron on a 45-squared board. (7x7, Cells: 45) By Joost Aan de Brugh.
9. Neutron 45 ZRF . Variant of the game Neutron on a 45-squared board. By Joost Aan de Brugh.
10. Ninjutsu (Claustrophobia 2). Win by invading palace or checkmate; new leaping pieces promote to gain more power. By Charles Daniel.
11. Not a chess variant. Rules of a chess variant on a board with 41 squares. (7x7, Cells: 41) By Alexandre Muñiz.
12. Notchess. A family of games with Chess and Chess-Variant pieces but no King. () By Charles Gilman.

O

1. Oblique . Variant with board with 40 squares turned 45 degrees. By Tony Quintanilla.
2. Oblique. Variant with board with 40 squares turned 45 degrees. (Cells: 40) By Tony Quintanilla.
3. Oblong Chess 44 . Missing description By Erez Schatz.
4. Oblong Chess 44. Variant of Oblong Chess on board with 44 squares. (4x11, Cells: 44) By Erez Schatz.
5. Omnichess. Omnichess - Create and play chess variants. 2-8 players. Square, Hexagonal, Triangular board types. By ch1gz .
6. Omnigon. Photos and Review of commercial variant. Author: Ben Good. Inventor: Mike Flynn.
7. Once More, with Deans. Subvariants of River-with-university-and-cathedral series with extra piece type. By Charles Gilman.
8. The One Ring . White wants to get the Ring to the far side and destroy it. By Robert Price.
9. The One Ring. White wants to get the Ring to the far side and destroy it. (5x8, Cells: 42) By Robert Price.
10. The One Ring 1. Sample Game #1. Author: Robert Price.
11. The One Ring 2. Sample Game #2. Author: Robert Price.
12. The One Ring 3. Sample Game #3. Author: Robert Price.
13. Onitama. Cards decide how pieces move, perfect information with no chance beyond setup. Author: Mikk . Inventor: Shimpei Sato.
14. Outer Space Chess. Space-themed game with hyperspace and regular space boards. (2x(5x8), Cells: 43) By Nicholas Kuschinski.

P

1. Pachessi . Race and chess game on board formed by removing 3 by 3 square from center of 7 by 7 square. By Peter Aronson.
2. Pachessi. Race and chess game on board formed by removing 3 by 3 square from center of 7 by 7 square. (7x7, Cells: 40) By Peter Aronson.
3. Palace Revolution. Play this 44 square variant with Templar Knights and Squire Pawns with Game Courier. Author: Jeff Rients. Inventor: Peter E. Leyva.
4. Palace Revolution. Variant on 44 square board with Templar Knights and Squire Pawns. (7x8, Cells: 44) Author: Peter E. Leyva. Inventor: Peter E. Leyva.
5. Panal: a hexagonal chess. A double-royal piece variant on a 61-hex board. (Cells: 61) By Glenn Overby II.
6. Panal: a hexagonal chess . A double-royal piece variant on a 61-hex board. By Glenn Overby II.
7. Patricia. On a 5 by 5 board, with drops and changing pieces. (5x5, Cells: 25) Author: Hans L. Bodlaender and Rob Nierse. Inventor: Rob Nierse.
8. Patricia. Construct a stalemate puzzle. Author: Hans L. Bodlaender. Inventor: Rob Nierse.
9. Pawn Less Chess. New pieces, no pawns, and 20 squares removed from the 8 by 8 board. (8x8, Cells: 44) By Uri Bruck.
10. Pawn Less Chess . Different pieces, no pawns, and 20 squares removed from the 8 by 8 board. By Uri Bruck.
11. Peng Hu rules. Rules for half-board Xiangqi. (8x4, Cells: 32)
12. Petite Chess. Chess on a 5 by 6 board. Author: Ed Friedlander. Inventor: B. Walker Watson.
13. Petty Chess . Chess on a 5 by 6 board. Author: Marek14 . Inventor: B. Walker Watson.
14. Petty Chess. Chess on a 5 by 6 board. (5x6, Cells: 30) Author: Hans L. Bodlaender. Inventor: B. Walker Watson.
15. Philosopher's Chess. The Philosopher's Chess in the Game Courier. Author: Abdul-Rahman Sibahi. Inventor: Darren Izzard.
16. Philosopher's Chess. Winner of the 40 squares contest. Author: Ed Friedlander. Inventor: Darren Izzard.
17. Philosophers Chess. Photo's of 40 squares chess variant. Author: Fergus Duniho. Inventor: Darren Izzard.
18. Philosophers Chess . Chess variant on two small boards with usual and `philosophical' piece. Author: Fergus Duniho and Jens Markmann. Inventor: Darren Izzard.
19. Philosophers Chess. Chess variant on two small boards with usual and `philosophical' pieces. (6x6, Cells: 40) By Darren Izzard.
20. Pink Panther Chess. Possess the Pink Panther diamond give your piece extra moves. (7x7, Cells: 49) By Charles Gilman.
21. Pirate Chess. Two or three pirates fight on a board with 39 triangles. (Cells: 39) By Guillermo Alcántara.
22. PiRaTeKnIcS. Play this 44-squares chess variant in which pirates on ships fight each other on Game Courier. Author: Peter Aronson. Inventor: David Jagger.
23. PiRaTeKnIcS. Pirates on ships fight each other in 44-squares chess variant. (6x8, Cells: 44) By David Jagger.
24. Pirates-Henge-Ho. Small variant with pirates theme. (5x7, Cells: 38) By R Stephen Chafe.
25. Pixelpusher variant: Chess on a board with 37 squares. Java applet for chess variant on a 37-square board. Author: Hans L. Bodlaender. Inventor: Alfred Pfeiffer.
26. Pixelpusher: Los Alamos chess. Weak playing Java applet for Los Alamos chess.
27. Pocket Polypiece Chess. Play Pocket Polypiece Chess online with Game Courier. Author: Antoine Fourrière and Fergus Duniho. Inventor: Antoine Fourrière.
28. Pocket Polypiece Chess 43 . Game with off-board pocket where all pieces of a type change when one piece of a type is moved normally. By Antoine Fourrière.
29. Pocket Polypiece Chess 43. Game with off-board pocket where all pieces of a type change when one piece of a type is moved normally. (7x6, Cells: 43) By Antoine Fourrière.
30. Pompeii Chess. Variant on board with 25 squares. (7x7, Cells: 25) By Dan Troyka.
31. Pompeii Chess. Small variant with piece drops, orthogonal pawn moves and one each of all the FIDE pieces. Author: Jeremy Gabriel Good. Inventor: Dan Troyka.
32. Pompeii Chess . Variant on board with 25 squares. By Dan Troyka.
33. Power Chess 1998. Taken pieces can reenter. (5x7, Cells: 39) By Ronald Hoekstra.
34. Prison Break. Starring the sliding pawns, the Ninja Guards, the Knight, the Bird, the King and introducing the captivating Ice Queen! (6x8, Cells: 46) By Charles Daniel.
35. Prison Break. Checkmate the enemy king or break out of prison with your king! By Charles Daniel.
36. Prisoner's Escape. Free your Prisoner by getting it to an unattacked square -- a small board version of Anticheckmate Chess. (7x8, Cells: 44) By Peter Aronson.
37. Prisoner's Escape . Free your Prisoner by getting it to an unattacked square -- a small board version of Anticheckmate Chess. By Peter Aronson.
38. Puzzle Shatranj. Shatranj on a 15 puzzle. (8x8, Cells: 60) By John Smith.

Q

1. Quad-Square Chess . Chess on a board of 38 squares, of which six have size two by two. Author: Robert Price. Inventor: David Howe.
2. Quad-Square Chess. Chess on a board of 38 squares, of which six have size two by two. (7x8, Cells: 38) By David Howe.
3. Quake Chess. Quake Chess on the Game Courier. By Abdul-Rahman Sibahi.
4. Quake Chess. Earthquakes over the board. (8x6, Cells: 46) By Abdul-Rahman Sibahi.
5. Quarterboard. Small variant with no pawns and piece drops, inspired by Chess and Shogi. By Milan Zeiske.
6. Quick Chess. Chess on a 5 by 6 board. (5x6, Cells: 30) Author: Richard Sullivan. Inventor: Joe Miccio.
7. Quintanilla, Tony. Interview with the winner of the 41-square Chess Variant Competition. Author: Hans L. Bodlaender.

R

1. Re. Drop pieces on a 5 by 5 board. By (zzo38) A. Black.
2. Re. Drop pieces on a 5 by 5 board. (5x5, Cells: 25) Author: Hans L. Bodlaender. Inventor: Reiner Knizia.
3. Reality check. Remember the opposite site of flippable pieces. (Cells: 39) By Andrew Juell.
4. Redistribution 3d Chess. Relatively small 3d variant with short-range pieces including Pasha family. (4x(4x6), Cells: 96) By Charles Gilman.
5. Reenterent Chess . There is one additional square where taken pieces can wait to reenter 5 by 8 main area. Author: Peter Aronson. Inventor: Edward Lovett.
6. Reenterent Chess. There is one additional square where taken pieces can wait to reenter 5 by 8 main area. (5x8, Cells: 41) By Edward Lovett.
7. Reenterent Chess - prototype board. Missing description By Edward Lovett.
8. Reform chess. Book on chess on smaller boards with many training positions. Author: Laszlo Polgar.
9. Regenbogen . Unusual spectrum-based game with Wizards, Clerics and Spirits. Author: Joost Aan de Brugh. Inventor: Jared B. McComb.
10. Regulator Chess . Game on a 35 square board with a 7 square track on which a piece moves that determines how Knights and Bishops can move. Author: Peter Aronson. Inventor: Samuel H. Bell.
11. Regulator Chess. Game on a 35 square board with a 7 square track on which a piece moves that determines how Knights and Bishops can move. (6x7, Cells: 42) By Samuel H. Bell.
12. Report on 41-square Chess Variant Competition. Missing description Author: David B. Pritchard.
13. Review: Omnigon. Photos and Review of commercial variant. Author: Ben Good. Inventor: Mike Flynn.
14. Revolver Practice: A Chess Problem. White mates in 21 moves on board in shape of revolver. Author: Hans L. Bodlaender. Inventor: T. R. Dawson.
15. Robber-Baron . Which of the seven robbers is the robber-baron? Author: David Howe. Inventor: Seth McGinnis.
16. Robber-Baron. Which of the seven robbers is the robber-baron? (7x7, Cells: 39) By Seth McGinnis.
17. Rollerball. Chess race fight on board formed by removing 3 by 3 square from center of 7 by 7 square. Author: Antoine Fourrière. Inventor: Jean-Louis Cazaux.
18. Rollerball . Chess race fight on board formed by removing 3 by 3 square from center of 7 by 7 square. By Jean-Louis Cazaux.
19. Rollerball. Chess race fight on board formed by removing 3 by 3 square from center of 7 by 7 square. (7x7, Cells: 40) By Jean-Louis Cazaux.
20. Rook Mania. Game where all pieces have different sorts of Rook-like moves. (7x7, Cells: 43) By Jared B. McComb.
21. The Royal Standard. Pieces can only move when near a standard-bearer piece on board with 38 squares. (7x6, Cells: 38) By Alexandre Muñiz.

S

1. Saisho shogi. Game with one dice-shaped shared piece. By Francesco Fonseca.
2. Sankaku Shogi . Small Shogi variant played on a board of 44 triangles with no drops and a teleporting Emperor. By Larry L. Smith.
3. Sankaku Shogi. Small Shogi variant played on a board of 44 triangles with no drops and a teleporting Emperor. (7x8, Cells: 44) By Larry L. Smith.
4. Semedo. Missing description (5x8, Cells: 40) Author: Daniil Frolov.
5. SerPent Chess 50. Pentagonal cells form hexagonal blocks in two ways. (Cells: 50) By Charles Gilman.
6. Shakti. Christian Freeling's simple, elegant game with disappearing squares. Author: Ed Friedlander. Inventor: Christian Freeling.
7. Shakti. On a 7 by 7 board with disappearing squares. (7x7, Cells: 49) By Christian Freeling.
8. Shifting Sands Chess . Special squares -- which can be dropped and moved -- change the types of pieces that land on them. By Tony Quintanilla.
9. Shifting Sands Chess. Special squares -- which can be dropped and moved -- change the types of pieces that land on them. (6x7, Cells: 42) By Tony Quintanilla.
10. Shogi 59. Shogi on half of a 9x12 board. (9x13, Cells: 59) By John Smith.
11. Sideways Hourglass chess. Small variant on 6 by 7 board with two squares punched out. (7x6, Cells: 40)
12. Sigma 4 Shogi. Missing description (7x7, Cells: 49) By Daniel Roth.
13. A Silly 42-Squares Board. A Silly 42-squares board with a little Unirexial variant you can play on it. (Cells: 42) By Jared B. McComb.
14. Slide Chess . Variant on 44 squares with moving cages. Author: Antoine Fourrière. Inventor: João Pedro Neto.
15. Slide Chess. Variant on 44 squares with moving cages. Author: Antoine Fourrière. Inventor: João Pedro Neto.
16. Slide-Chess. Variant on 44 squares with moving cages. (7x8, Cells: 44) By João Pedro Neto.
17. Small Spherical Chess. Board of form of sphere, with 38 squares. (Cells: 38) By Andrea Mori.
18. Small-Deacon Chess. Missing description (7x7, Cells: 49) By (zzo38) A. Black.
19. Smallest possible 2D and 3D chess. Missing description (2x(2x2), Cells: 4) By Daniil Frolov.
20. Smegi . Arrows on squares show where pieces can go - crossover between Smess and Shogi. By Fergus Duniho.
21. Smegi. Arrows on squares show where pieces can go - crossover between Smess and Shogi. (5x8, Cells: 40) By Fergus Duniho.
22. Smegi Photographs. Photo's of small chess variant, a hybrid of Smess and Shogi. By Fergus Duniho.
23. Snake Chess. A variant played on a 2 by 12 cyclindrical board. (2x12, Cells: 24) By Sergey Sirotkin.
24. Snake Chess . A variant played on a 2 by 12 cyclindrical board. Author: Peter Aronson. Inventor: Sergey Sirotkin.
25. Snark Hunt. Variant with unequal armies on board with 41 squares, inspired by a poem of Lewis Carroll's. (6x8, Cells: 41) By Peter Aronson.
26. Snark Hunt . Variant with unequal armies on board with 41 squares, inspired by a poem of Lewis Carroll's. By Peter Aronson.
27. SpaceWarp44. 44 square board has warp squares that allow a teleport to another warpsquare. (5x9, Cells: 44) By Jeff Rients.
28. SpaceWarp44 Chess. 44 square board has warp squares that allow a teleport to another warpsquare. By Jeff Rients.

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