Logic Masters Deutschland e.V.

Killer Arrow Sudoku - 3, 2, 1, Magic!

(Published on 2. December 2020, 15:47 by DiMono)

This is my attempt to construct a sudoku with a magic square where a) it's not boring, and b) it is necessary for the solve. This puzzle is not meant to be overly difficult, but there's some interesting logic that while not strictly necessary, will lead to a slightly faster solve if found.

Standard Sudoku rules apply.

Standard killer sudoku rules apply: Cells in a cage sum to the number in the corner without repeating a digit.

Standard arrow sudoku rules apply: Cells along an arrow sum to the number in the connected circle.

Also, hidden somewhere in the grid is a magic square, and a "321" countdown in a straight line of orthogonally connected cells. The square and countdown may overlap. Both must be located by the solver.

Solve on SudokuPad

Solution code: Row 2, Row 8

Last changed on on 2. January 2026, 23:27

Solved by primovera, subtize, MartinR, kevinyoung90, ThrowngNinja, PixelPlucker, soroush, skywalker, MB_Cyclist, NikolaZ, zorant, 0123coolkid, ArchonE, Ragna, pdabraham, SKORP17, zhergan, Kabuki73, tinounou, dandbdi, puffy2005, MatthewDonovan, mlkj, ManuH, qnz, misko, Vebby, Julianl, apwelho, Sewerin, AvonD
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Comments

on 2. January 2026, 23:21 by DiMono
SudokuPad link, added Online Solver tag, clarified countdown rules.

on 30. December 2020, 19:09 by MatthewDonovan
Nice puzzle, thanks!

on 3. December 2020, 22:55 by Ragna
Suuuper! :-))

on 2. December 2020, 23:05 by DiMono
Added some clarity to the consecutive cells rule

Difficulty:4
Rating:88 %
Solved:31 times
Observed:15 times
ID:0004US

Puzzle variant Online solving tool

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Solution code:

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