Extended Sudoku rules apply: Place the digits 0-9 in each row, column, and box, however there will be one digit in each that does not fit. This digit can vary between rows, columns, and boxes and needs to be determined by the solver.
XV: Digits separated by an X sum to 10, those separated by a V sum to 5. All Xs and Vs have been given
Kropki: Digits separated by a black dot must be in a 2:1 ratio. All black dots are given
Renban: Digits placed on purple lines must be a non-repeating set of consecutive digits in any order.
Previous puzzles form the series:
Solution code: Row 5
on 17. February 2026, 07:37 by Exigus
Good fun, thanks!
on 16. February 2026, 22:43 by Guvenistan
I'm a sucker for negative constraints so I really enjoyed this puzzle. This series is really nice.
on 16. February 2026, 22:38 by Bankey
Fun puzzle. Thanks, @ gadgetgreen :).
on 16. February 2026, 19:09 by PinkNickels
Very tricky, very fun. Thanks so much for sharing.
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