by LilGungaJr·Published 07/25/2026, 05:14:02 AM
Sudoku
Each row, column, and region must contain the digits 1-9 once each.
German Whisper Lines
Adjacent cells along a German Whisper Line must differ by at least 5.
Anti-Knight
Cells separated by a knight's move in chess cannot contain the same digit.
Between Lines
Digits along a Between Line must be numerically between the two digits on the circles.
Maximum
Marked cells are greater than all orthogonal neighbours.
Thermometers
Digits along a Thermometer must increase as they move away from the bulb.
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