Blog
How to cut swaps, what the colours mean, and why the daily 9×9 has no clock.
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Wordle but sudoku A shared daily 9×9 for Wordle players: one board for everyone, you swap tiles, and the score is how few swaps you needed.
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Swap Sudoku vs classic sudoku Classic sudoku fills empty cells. Swap Sudoku starts with a full, jumbled 9×9. Same 1–9 rules. You swap tiles to restore the grid.
- How Swudoku helps you warm up for competitive chess
A no-clock daily 9×9 as a chess warm-up: slow calculation, pattern spotting, one shared board.
- Brain training with Swudoku
A short daily swap-sudoku as a focus habit: pattern recognition, no timer, no medical claims.
- The ultimate Swudoku strategy guide for new players
How new players cut swaps: read the board first, hunt Double Swaps, use the colours, finish blocks, undo freely.