Renban Playset (Redux)
(Published on 7. August 2026, 12:11 by starchacer)
I posted this puzzle three days ago as a 4-star and got very few attempts. So, I've added an additional black kropki which I believe drops the difficulty down to 2-star. Please give this a try and let me know what you think. Thanks for playing!
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each.
- Black Kropkis: Digits in cells separated by a black dot have a 1:2 ratio.
- Renban: Purple lines contain a non-repeating set of consecutive digits in any order.
- Quadruple Circles: The four digits in a circle must be appear in the cells around the circle.
- Antiking: Cells which are a (chess) king's move apart cannot share the same digit.
- Positive Diagonal: Digits along the positive diagonal (R9C1 to R1C9) must be unique.
Solution code: Row 8, in order, from left to right.
Comments
on 7. August 2026, 16:21 by PinkNickels
Very fun puzzle. Deserves many more solves!
on 7. August 2026, 13:17 by The Pi Guy
A bit mixed. Good use of the king’s move and some clever logic in there but the overall solve felt very fiddly.
Also, I suggest using a king chess symbol in the top left to remind the solvers of the king’s move rule (I’ve been using a knight symbol in all of my knight’s move puzzles and have had some really positive feedback). Just insert the standard chess text into text in SudokuMaker. Hope you find this helpful.
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(starchacer): Thanks for the feedback.
