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Sudoku Puzzle

Fill the grid so every row, column and 3×3 box contains the digits 1–9. Every puzzle generated here has exactly one solution.

Generating puzzle…

Symmetry Drawing Pad

Draw mandala and kaleidoscope patterns with mirrored symmetry.

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Magic 8-Ball

Ask a yes-or-no question and get an instant answer.

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Rock Paper Scissors

Play against the computer.

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Tic-Tac-Toe

Play against the computer.

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Memory Card Game

Flip cards and find all the matching pairs.

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Reaction Time Test

Test your reaction time in milliseconds.

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