Place gem blocks in a 10x10 grid to form complete rows or columns for elimination. Earn points by clearing blocks. Swap pieces to create matches and clear obstacles. Track high scores and replay previous games.
Solve logic puzzles by filling white squares with triangles to form rectangles. Each black square with a number must have that many adjacent triangles. Adjust puzzle difficulty and track progress across multiple games.
Play on 4x4 or 5x5 grids to avoid getting three in a row. Take turns placing Xs and Os. Win by blocking opponent's lines or completing your own. Adjust grid size for different difficulty levels.