Hexa Sudoku begins with small square Sudoku grids and gradually adds larger boards and sum cages. Fill each row, column and outlined box with every permitted digit exactly once: 1–4 on 4×4, 1–6 on 6×6, and 1–9 on 9×9. Later dotted cages add another condition: their digits must total the number in the corner without repeating. Start with missing digits in a row or box before guessing.
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No. The game uses square 4×4, 6×6 and 9×9 grids; “Hexa” is the game title.
The digits inside the cage add to that number, and the same digit cannot appear twice in the cage.
Each outlined box is two rows high and three columns wide.
They let you record possible digits, but you still need to check the row, column, box and any cage before entering a final value.
The standard round ends, so avoid entering an untested guess.
