Bouncing Digits
(Published on 24. January 2026, 06:48 by antiknight)
I wanted to explore an idea combining entropic lines and fortress cells, together with the knight’s move constraint. Feel free to leave a comment if you enjoyed it.
Rules:
Rules:
- Sudoku: Normal Sudoku rules apply.
- Knight's move: Digits must not repeat in cells that are a chess knight's move apart.
- Entropic Lines: Any set of three digits along the peach lines must contain one small digit (1, 2, 3), one medium digit (4, 5, 6), and one large digit (7, 8, 9).
- Renban Lines: Digits along each magenta line must be a set of consecutive digits in any order.
- Fortress: Grey cells with outward-pointing arrows indicate values greater than all orthogonally adjacent cells, while grey cells with inward-pointing arrows indicate values smaller than all orthogonally adjacent cells.
Click the image to play in SudokuPad!
Enjoy!
Solution code: Row 1
Solved by Playmaker6174, by81996672, kangaroo, Onkel_Dagobert, Bjd, DarkPaladin, Exigus, SKORP17, gdc, Fredxl, strangelyinsane, tuturitu, luuu, jordanza, jalebc, miranda_9, severinus, Chelo, Altynbek , bansalsaab, Stargazing Albatross, dipiz, quantumquark1, War
Comments
Last changed on 24. January 2026, 19:55
on 24. January 2026, 15:43 by Exigus
Very cool construction. Quite tricky but worth it. Thanks!
- I'm glad you've enjoyed it!
Last changed on 24. January 2026, 19:55
on 24. January 2026, 08:35 by Playmaker6174
Beautiful uses of the anti-knight constraint in the first half; the second half was significantly harder for me to scan and took me a long while to find the desired breakthrough, at least the anti-knight came into the rescue again thankfully xd
- Thanks for your comment and feedback! I wanted the puzzle to have a little taste of the anti-knight in the second half :P
