Expert Sudoku for 2026-05-13

Expert Sudoku puzzle published on 2026-05-13, with 28 given clues. Solving it requires the following techniques: Naked Single, Hidden Single, Claiming, Naked Pair, XY-Chain, Naked Triple, Unique Rectangle, XY-Wing, W-Wing, 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.