Logic Masters Deutschland e.V.

Knights of the Four Corners

(Published on 16. May 2024, 00:35 by noswald)

Rules:

  • Normal Sudoku rules apply. Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box.
  • The digits in a cage must sum to the number printed in its corner. Digits may not repeat within a cage.
  • Digits must not repeat in cells that are a chess knight's move apart.
  • The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.

Link:

Updated link to have anti-knight rules built in!

Solution code: Column 1

Last changed on on 16. May 2024, 05:16

Solved by SKORP17, SudokuHero, killer_rectangle, tiredsudoku, alexlovi, BlackWolf, creo, SincereEngineer, m_busuttil, Fisherman, Bulkystapler, alexsmart, fuxia, Grothenlace, Iluvsodah, grothar, Piff, Kabuki73, ... noodlehead, Peteronium, ellamackmitch, Ryaffio, Arec, YGe, Carbon, paranoid, annnz, shafer, LeLoyJenkins, S4K, Koba, Uhu, Carolin, BlackApolloX, Onyx, doomedmageknight, jimblek, Lodinn, asver
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Comments

on 20. August 2024, 16:18 by Lodinn
For me, a 2* hero, the puzzle definitely was difficult. Break-in felt like proper 2* with several deduction steps, but disambiguation at the very end was what broke me. I tried pencilmarking, coloring and whatnot before finally giving in to bifurcation just to find the contradiction 5 steps down the line.

It's a good puzzle nonetheless, but that part alone is enough to warrant a 3* from me.

on 16. May 2024, 05:16 by noswald
I've changed the link to a version with the anti-knight move in the rules

on 16. May 2024, 03:26 by killer_rectangle
Could you please add the knight-move constraint to the CTC rules?

on 16. May 2024, 01:41 by SudokuHero
Nice puzzle. Not too hard, but you still have to work during the second half of the puzzle.

Difficulty:2
Rating:83 %
Solved:100 times
Observed:7 times
ID:000I3D

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