Expert Sudoku for 2026-06-18

Expert Sudoku puzzle published on 2026-06-18, with 28 given clues. Solving it requires the following techniques: Hidden Single, Naked Single, Skyscraper, W-Wing, Pointing Pair, Claiming, XY-Chain, XYZ-Wing. Every puzzle on this site is generated by Dancing Links and then verified by a tiered human-style solver, so it is guaranteed solvable with logic alone – no guessing or backtracking.

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Solvable with the techniques above, with one solution and no guessing required.

Puzzles are generated by a custom made engine. Sudoku Explainer (LGPL) and HoDoKu (GPLv3) are used to compute the difficulty scores.

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Puzzles are generated by a custom made engine. Sudoku Explainer (LGPL) and HoDoKu (GPLv3) are used to compute the difficulty scores.

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