Expert Sudoku for 2026-08-13

Expert Sudoku puzzle published on 2026-08-13, with 30 given clues. Solving it requires the following techniques: Naked Single, Hidden Single, X-Wing, 2-String Kite, XYZ-Wing, Swordfish, XY-Wing, W-Wing, XY-Chain, Pointing Triple, Naked Pair, Naked Quad, Claiming. 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.