| 1 | p.boxed |
| 2 | | The board is rotated by 45°, and then the game follow usual rules. |
| 3 | |
| 4 | p. |
| 5 | White (resp. Black) pawns move one square diagonally north-west: h1 to a8 |
| 6 | (resp. south-east: a8 to h1). |
| 7 | White (resp. Black) pawns capture on the adjacent orthogonal squares either |
| 8 | up or to the left (resp. down or to the right). |
| 9 | This is natural after rotating the board by 45° clockwise, |
| 10 | explaining the name "Diamond Chess". |
| 11 | |
| 12 | p All other pieces move like in orthodox chess. |
| 13 | |
| 14 | figure.diagram-container |
| 15 | .diagram |
| 16 | | fen:8/1p6/1B4P1/8/8/3n4/3pP3/8 b6,c6,d2,f7: |
| 17 | figcaption Pawn moves. |
| 18 | |
| 19 | h3 Source |
| 20 | |
| 21 | p |
| 22 | a(href="https://www.chessvariants.com/rules/diamond-chess") Diamond Chess |
| 23 | | on chessvariants.com. |
| 24 | |
| 25 | p Inventor: James Alexander Porterfield Rynd (1886) |