Your puzzles — Sudoku Raven

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Construction tools

Build with a private solution sketch

Fill a sketch, choose givens or draw cages, then check the player's puzzle. Only you can see the sketch's digits.

Fill whole sketch keeps existing digits. Random-fill selection may replace selected sketch digits; givens and other cells are preserved. Everything can be undone.

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Remaining digits

Digits are based on the board shown. Allowed digits check direct rules, not whether the whole puzzle is solvable.

Puzzle check

Not checked yet.

Publishing requires exactly one solution. The check includes givens, cage no-repeat rules and every specified sum. The private sketch is not a clue. A unique solution is not a difficulty rating.

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