Expert Sudoku for 2026-05-18

Expert Sudoku puzzle published on 2026-05-18, with 27 given clues. Solving it requires the following techniques: Naked Single, Hidden Single, Pointing Pair, Naked Triple, XY-Wing, Skyscraper, W-Wing, XY-Chain, BUG+1. 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.