Japanese Sums by Serkan Yürekli

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Japanese Sums by Serkan Yürekli


or solve online (using our beta test of Penpa-Edit tools; use tab to shift between number entry and shading modes.)

Theme: Sum of 1 & 2 (for Randy Rogers)

Author/Opus: This is the 146th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Place the digits 1-9 in some of the cells, so that no digit is repeated in any row or column. Numbers on the outside of the grid indicate the sums of adjacent digit groups in that row or column, in order. Each sum is separated by at least one unused cell.

Japanese Sums Example

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 10th row from left to right. Use a capital X for empty cells.

Time Standards (highlight to view): Grandmaster = 18:00, Master = 32:00, Expert = 1:04:00

Solution: PDF

Note: Follow this link for other Japanese Sums puzzles.

  • Andrew Brecher says:

    That one random 12 was a pain…I had to backtrack two or three times because I kept trying to solve it as another 13.

    Now I’m seeing 13s everywhere…

  • SS says:

    A great puzzle and a very good challenge. More Japanese Sums please!

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