Expert Sudoku for 2026-04-13

Expert Sudoku puzzle published on 2026-04-13, with 27 given clues. Solving it requires the following techniques: Hidden Single, Naked Single, Pointing Pair, Skyscraper, XY-Wing, Claiming, Unique Rectangle, 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.