| 1 | p.boxed |
| 2 | | Pieces in the first half of the board are yours. Captures are mandatory. |
| 3 | |
| 4 | p. |
| 5 | All pieces are of the same color (black on the website), but in fact |
| 6 | pieces just have no color: you control all |
| 7 | pieces which stand in the half-board in front of you. These pieces can |
| 8 | only capture on the other half-board. |
| 9 | |
| 10 | p. |
| 11 | Since captures are mandatory, pieces could make some round-trips |
| 12 | around the board, changing owner at every mid-board crossing. |
| 13 | For example on the following diagram, the sequence will be 1.Rxd7 Rxd1 |
| 14 | 2.Rxd8 and black would win, assuming the final rank is 8th. |
| 15 | |
| 16 | figure.diagram-container |
| 17 | .diagram.diag12 |
| 18 | | fen:3b4/3q4/8/8/8/8/3r4/3n4: |
| 19 | .diagram.diag22 |
| 20 | | fen:3b4/3r4/8/8/8/8/8/3n4: |
| 21 | figcaption Before and after Rxd7 |
| 22 | |
| 23 | p. |
| 24 | Knights become knightriders: they can make any number of knight steps in a |
| 25 | direction. There are no en-passant captures, and no castle. |
| 26 | |
| 27 | h3 Source |
| 28 | |
| 29 | p |
| 30 | | Strongly inspired by |
| 31 | a(href="http://www.wunderland.com/WTS/Andy/Games/monochess.html") |
| 32 | | Monochrome Chess |
| 33 | | , but I wanted a version without points counting. |
| 34 | |
| 35 | p Inventor: Andrew Looney (1996) |