Free 4D, 3D and 5D chess in your browser - no download, no sign-up.
About Chess4D
Chess4D is a free browser chess site with three modes: 4D chess on a 4x4x2x2 hypercube board with legal-move markers, classic chess on a rotatable 3D board vs Stockfish, and an experimental 5D time-travel variant. Play vs the computer or a friend on the same device.
✓ VerifiedOct 28, 2026
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