Sudoku Games: Brain Puzzles — how to play

Simple rules — the game also teaches you as you play.

1. Fill the empty cells so that every row, every column and every box contains each digit exactly once.
2. Tap a cell, then a digit. Pencil mode is for notes and candidates.
3. Made a mistake — undo. Stuck — use a hint.
4. Start with a 6×6 warm-up, then move on to 9×9 and Master. Every puzzle has exactly one solution.
5. 15 Puzzle: slide tiles into the empty space until they are in order.
6. Pairs: flip two cards at a time and remember where each picture is.

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