| 1 | p.boxed |
| 2 | | Your moves are decided by the opponent, to a square that you choose. |
| 3 | |
| 4 | p. |
| 5 | At each turn you must first play a move with opponent's pieces to the |
| 6 | marked square, and then play a move freely with your pieces. |
| 7 | The target in the first part of the move is indicated either by a colored |
| 8 | discus for an empty square, or by a colored piece for a capture. |
| 9 | |
| 10 | p. |
| 11 | Exceptions: the first move of the game (which just mark a square), and a |
| 12 | move which captures a king don't have a second part. |
| 13 | |
| 14 | p. |
| 15 | No check or checkmate, one wins by capturing the opponent's king. |
| 16 | There is no castling. |
| 17 | |
| 18 | figure.diagram-container |
| 19 | .diagram.diag12 |
| 20 | | fen:rnbqkbnr/pppppppp/8/8/8/5g2/PPPPPPPP/RNBQKBNR: |
| 21 | .diagram.diag22 |
| 22 | | fen:rnbqkbnr/pppppppp/8/3G4/8/5P2/PPPPP1PP/RNBQKBNR: |
| 23 | figcaption. |
| 24 | Left: White plays 1.Nf3. |
| 25 | Right: Black executes 1.f3 instead, then plays 1...d5. |
| 26 | |
| 27 | h3 Source |
| 28 | |
| 29 | p |
| 30 | | The |
| 31 | a(href="http://www.pion.ch/echecs/variante.php?jeu=ambigus") |
| 32 | | rules description |
| 33 | | by the author of this variant, which is also playable |
| 34 | a(href="https://brainking.com/en/GameRules?tp=85") on brainking.com |
| 35 | | . |
| 36 | |
| 37 | p Inventor: Fabrice Liardet (2005) |