Query Results for
SELECT * FROM `Item` LEFT JOIN `IndexEntry` USING (ItemID) WHERE `IsHidden` = 0 AND `Item`.`IsDeleted` = 0 AND `YearInvented` >= '1919' AND `YearInvented` <= '1929' AND `Language` = 'English' ORDER BY `LinkText`, `Item`.`Summary` ASC LIMIT 500 OFFSET 0
Berolina Chess. Different moving pawns. (8x8, Cells: 64) (Recognized!) Author: Hans L. Bodlaender. Inventor: Edmund Hebermann.
Blackburne's Proposal. QR becomes a marshall, QB becomes a pegasus, and KB becomes a queen are enhanced. Author: Ed Friedlander. Inventor: S. S. Blackburn.
Capablanca's chess 
. Version using Alfaerie graphics. Author: David Howe. Inventor: Jose Raul Capablanca.
Cavalry Chess. All pieces have additional knight move except knights which get camel + zebra moves. Author: Jeremy Gabriel Good. Inventor: Frank Maus.
Exploring Jetan
. Analysis and extended rules for Edgar Rice Burroughs' "Martian chess" jetan. By Fredrik Ekman.
- Jetan. Play Edgar Rice Burrough's Jetan (Martian Chess). Author: James Killian Spratt and Jean-Louis Cazaux. Inventor: Edgar Rice Burroughs.
Jetan: The Martian Chess of Edgar Rice Burroughs. Book about jetan. (10x10, Cells: 100) By Fredrik Ekman.
- Legler's Chess. Modest 1926 variant using an Archbishop and a Chancellor. (8x8, Cells: 64) Author: John Ayer. Inventor: Hugo Legler.
- Legler's Chess . Modest 1926 variant using an Archbishop and a Chancellor. Author: Peter Aronson. Inventor: Hugo Legler.
- Lias's Proposal. Pawns may move, but not capture, one square sideways. Author: Ed Friedlander. Inventor: A. G. Lias.
Makarenko's Chess. Pieces are stacks which can be split and combined to create other pieces. Author: Jacek Dobrzyniecki. Inventor: Anton Makarenko.
- Neo Chess. Four player chess on 8 by 10 board from 1925. (10x8, Cells: 80) Author: Hans L. Bodlaender. Inventor: J. L. Naylor.
- NeoChess. For four players on an 8x10 board. Author: Ed Friedlander. Inventor: J. L. Naylor.
- Union Chess. Pieces can fuse into stronger units. Author: Ed Friedlander. Inventor: Frank Maus.