Normal 4x4 Sudoku rules apply. Place the digits 1 through 4 in each empty cell. Digits must not repeat within the same row, column, or box.
10 lines: the line must be divisible into segments that sum to 10.
Doublers: in each row column and box, one cell is a 'doubler' which counts for twice the value of its digit. Each digit (1-4) is doubled exactly once.
Solution code: Row 2 (left to right) followed by column 3 (top to bottom)
on 19. July 2025, 16:47 by Qodec
Wow that was special! Thanks!
Difficulty: | ![]() |
Rating: | 83 % |
Solved: | 20 times |
Observed: | 2 times |
ID: | 000O9L |
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