Items Invented by Henk Breugem
- Blackjack chess. Win also if the value of pieces you have is exactly 21 points. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- Corner-square chess. Taking is only allowed when your king is on a cornersquare. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- The Disguised King. Unknown pawn becomes royal piece. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- Fifty-fifty chess. Mating is allowed after having taken eight pieces. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- Five-stars chess. One can also win by having five pieces in a row. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- The Grand Crossing. Win by moving your king to the opponents side of the board. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Henk Breugem.
- Blackjack Chess. If the point value of your remaining units totals 21, you win. Author: Ed Friedlander. Inventor: Henk Breugem.
- Disguised King I. A secret royal pawn must be protected. Author: Ed Friedlander. Inventor: Henk Breugem.
- Grand Crossing Chess. Win by getting your king to the opposite side. Author: Ed Friedlander. Inventor: Henk Breugem.
- Blackjack Chess. Reduce the point value of your pieces to exactly 21 points and win the game. Or do it the old-fashioned way. Author: Jeremy Gabriel Good and Adrian Alvarez de la Campa. Inventor: Henk Breugem.