Gravity drags every piece sideways after each move.
How to play
After every move, gravity pulls every piece one square sideways toward the gravity side (toward the a-file or the h-file) if that square is empty. The direction flips every 6 plies, and the arrow shows the current pull and when it will flip. Plan for where your pieces will land! Pawns that reach the last rank become queens. Check rules apply: a move is only legal if, after it and the gravity pull that follows, your king is not attacked. Checkmate wins; having no legal move while not in check is a stalemate (draw). No castling or en passant.
You play White against the bot. Tap a piece, then tap a highlighted square.