Expert Sudoku for 2026-05-15

Expert Sudoku puzzle published on 2026-05-15, with 30 given clues. Solving it requires the following techniques: Naked Single, Hidden Single, Naked Pair, Pointing Pair, X-Wing, 2-String Kite, Unique Rectangle, Discontinuous Nice Loop, XY-Chain, XY-Wing, W-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.