MAHJONG SOLITAIRE 3D

Objective: Clear all 144 tiles from the board by selecting identical unblocked pairs.

Free Tiles: A tile is free (unblocked) if no tile lies directly on top of it AND either its left OR right side is completely open.

Matching Rules: Standard tiles match their exact suit/number. Any Flower tile matches any Flower tile, and any Season tile matches any Season tile.

Keyboard: Arrow keys cycle through currently free tiles; Enter or Space chooses the focused tile. H = Hint, U = Undo, S = Shuffle, N = New Deal.

Constructively Solvable: Every deal is built from a full legal removal sequence. Shuffle Remaining reconstructs the unresolved tiles from another legal sequence, and Undo can restore the pre-shuffle assignment.