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Expert · 2026-11-09
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Form groups of adjacent cells (above, below, left, or right) that add up to:
12
25
31
11
23
5
0
0
2
4
7
9
9
0
0
3
9
1
8
2
0
0
0
5
7
0
0
2
0
6
0
1
0
5
7
0
8
3
0
0
9