- Canceling an union move is forbidden. For example if a bishop is
- dancing with a queen, and makes the move e5 to g3, the other player cannot
- move it back to e5 just after. This is also non-official.
+ I added some small changes, globally to complicate defense.
+ These are not in the official rules.
+
+ul
+ li.
+ Canceling an union move is forbidden. For example if a bishop is
+ dancing with a queen, and makes the move e5 to g3, the other player
+ cannot move it back to e5 just after.
+ li.
+ Pawns (or pawns in unions) can advance two squares from their initial
+ position, but you may only do that once per file.
+ li.
+ If you form an union with your king but end dancing with the
+ other king on the other end of the chain, the game is a draw.
+
+figure.diagram-container
+ .diagram.diag12
+ | fen:r2qk2r/pbpe1pp1/np5p/2b1p3/4P1t1/2N3K1/PPPP1PPP/R1B3NR:
+ .diagram.diag22
+ | fen:r2qX2r/pbpf1pp1/np5p/2b1p3/4P1u1/2N5/PPPP1PPP/R1B3NR:
+ figcaption Before and after Kxg4, g4xd7, d7xe8 1/2