Logic Masters Deutschland e.V.

The Robin Hood Incident (Broken Arrows)

(Published on 23. July 2021, 11:48 by RobK)


The story goes that the legendary Robin Hood once fired an arrow perfectly into another, splitting it. Here's an arrow sudoku with broken arrows.

Solve on Penpa

Rules: Normal Sudoku rules apply. Also, the digits on an arrow add up to the digit in that arrow's circle. Arrows and circles have to be matched by the solver - no cell on any arrow shares a row, column or 3x3 box with its circle.

To clarify: if an arrow with total 6 shares a box with a 6 in a circle, that cannot be the circle that goes with that arrow. Penpa only checks the digits, not the matching. Note that the cross in R1C8 is a one-cell arrow. ie: The digit in that cell must match the digit in its respective circle.

Thanks to CilantroGamer, SSGranor and Mr.Menace for testing.

Good luck and happy solving!

Solution code: Row 9, then column 9. 18 digits, no spaces.

Solved by Cane_Puzzles, Mr.Menace, CilantroGamer, SSG, marcmees, juventino188, thinkingalaud, juhish, OutOfMyMindBRB, bernhard, geronimo92, IvanZ59, ymhsbmbesitwf, cfop, Uhu, Wintermute7, michaal94, Crul, zhergan, windmill, damasosos92, Myxo, Andrewsarchus, The Book Wyrm, SKORP17
Full list

Comments

on 30. July 2025, 17:15 by The Book Wyrm
Crazy puzzle. Opening logic was really cool but very tricky for me, definitely harder than 3*. Very interesting puzzle.

on 25. July 2025, 04:02 by damasosos92
Also, a sudokupad link for who wants to solve it (solution check included):

https://sudokupad.app/yev6wjrsdr

on 25. July 2025, 04:01 by damasosos92
Incredibly brilliant puzzle. I'm speechless. This goes straight into my all-time favourites.

on 23. November 2021, 20:02 by Wintermute7
Really fun puzzle!

on 27. August 2021, 00:52 by ymhsbmbesitwf
It's brilliant! Exactly the flavour of puzzle i live for - looks impossible, but turns out to be really smooth after the initial shock wears off.

Last changed on 23. July 2021, 19:58

on 23. July 2021, 16:32 by Cane_Puzzles
Very interesting rule! This puzzle was approachable and very enjoyable. Thanks!

RobK: Thanks! Glad you enjoyed it and found it approachable. I'd love to see what others can do with the rule.

Difficulty:3
Rating:92 %
Solved:25 times
Observed:16 times
ID:00071R
Puzzle variant Online solving tool
Sudoku, Arrows (Variant)

Enter solution

Solution code:

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