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Expert · 2026-11-14
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Form groups of adjacent cells (above, below, left, or right) that add up to:
21
27
26
2
25
8
8
5
2
0
9
7
0
4
0
0
9
6
1
8
9
0
3
1
9
7
6
5
7
9
6
2
2
2
3
6
5
0
8
7
0
9