Expert Sudoku for 2026-05-23

Expert Sudoku puzzle published on 2026-05-23, with 26 given clues. Solving it requires the following techniques: Hidden Single, Naked Single, Pointing Pair, Naked Pair, X-Wing, Finned X-Wing, W-Wing, Naked Quad, XY-Chain, Claiming, Unique Rectangle, 2-String Kite, Naked Triple. 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.