Author: 红葉 (MOMIJI), from China, this question comes from his personal blog.
1. Put numbers from 1 through 9 in each cell (No zeros).
2. A number in a cell divided by a diagonal line tells the sum of the numbers in the consecutive cells to its right or downward.
No number may appear more than once in consecutive cells.
See
Nikoli linkfor an example.
Solution code: Row 2, Column 8 (17 digits). Solution code for the leftmost column and the top row not to be calculated.
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