| 1 | p.boxed. |
| 2 | White has only six pawns and the king, but move twice at each turn. |
| 3 | |
| 4 | figure.diagram-container |
| 5 | .diagram |
| 6 | | fen:rnbqkbnr/pppppppp/8/8/8/8/1PPPPPP1/4K3: |
| 7 | figcaption Standard deterministic position |
| 8 | |
| 9 | p. |
| 10 | The white army can appear much too small, but the power to move twice in a |
| 11 | row shouldn't be underestimated. At each turn white plays two moves |
| 12 | without any constraint. The goal is to capture the king. |
| 13 | |
| 14 | figure.diagram-container |
| 15 | .diagram.diag12 |
| 16 | | fen:rbbknn1r/1p2pp1p/2p3qK/p2p2p1/2PPP3/8/5P2/8: |
| 17 | .diagram.diag22 |
| 18 | | fen:3rq3/1p4p1/1k1pKp2/3P1P1n/p7/5n2/8/8: |
| 19 | figcaption Left: not a checkmate! Right: a "Monster-checkmate". |
| 20 | |
| 21 | p |
| 22 | | The diagram position on the left looks pretty much like a checkmate, |
| 23 | | but white can take the queen and come back to the h6 square. Finally, |
| 24 | | white can mate in an unusual way, like the following diagram found |
| 25 | a(href="https://en.wikipedia.org/wiki/Monster_chess") on Wikipedia |
| 26 | | . There is no way for the black king to avoid being captured since white |
| 27 | | plays twice (the threat is 2.d7,dxe8). |
| 28 | |
| 29 | figure.diagram-container |
| 30 | .diagram.diag12 |
| 31 | | fen:4k3/8/4P3/8/3P4/8/2q5/7K: |
| 32 | .diagram.diag22 |
| 33 | | fen:4k3/8/3PP3/8/8/8/2q5/7K: |
| 34 | figcaption Left: before 1.d5,d6. Right: after this move:, it's checkmate. |
| 35 | |
| 36 | h3 More information |
| 37 | |
| 38 | p |
| 39 | | Ralph Betza analyses this variant and the double move on |
| 40 | a(href="https://www.chessvariants.com/d.betza/chessvar/muenster.html") |
| 41 | | this page |
| 42 | | . Four pawns thus seems too few. Eight would most likely be too much, |
| 43 | | so the games here start with six white pawns. |
| 44 | | With time or engine play it could be further adjusted (to 5 maybe?). |
| 45 | | Anyway, that the variant is playable |
| 46 | a(href="https://greenchess.net/rules.php?v=monster") on greenchess.net |
| 47 | | with any number of white pawns. |