Classic 9x9 sudoku at easy difficulty — 36 clues given, 45 cells to fill in. The most clues of the three difficulties, so there's more to go on.
This preset locks the difficulty to easy, which starts each puzzle with 36 clues (the generator removes 45 of the 81 cells from a completed, valid 9x9 grid). The most clues of the three difficulties, so there's more to go on. Every puzzle has exactly one solution. Solve it on screen or download a print-ready PDF with an optional answer key.