Normal sudoku rules apply: place the digits 1 to 9 in every row, column, and 3x3 box.
Anti-knight: Cells separated by a knight's move (in chess) may not contain the same digit.
Killer: Digits in a cage sum to the small clue in the cage's top-left corner. Digits may not repeat within a cage.
Arrows: Digits along an arrow sum to the digit in that arrow's circle. Digits may repeat on an arrow if permitted by the other rules.
Solve online in SudokuPad.
Video solve: Logic Lemur.
Solution code: Row 2 (9 digits)
on 11. August 2026, 06:02 by vitray
Fixed mistaken revision
on 11. August 2026, 06:00 by vitray
<Bad edit>
on 10. August 2026, 15:36 by vitray
Added link to the solve by Logic Lemur
on 2. August 2026, 17:17 by wuc
Great 2*. Nice constant difficulty. Flows great thx.
on 2. August 2026, 08:53 by Aleon
I forgot about the anti-knight move and got to the late stage of the puzzle using the other rules and phistomefel ring. Could have saved so much time, doh. Great puzzle
on 2. August 2026, 01:41 by wuc
Great 2*. Nice constant difficulty. Flows great thx.
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