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Master · 2026-11-07
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Form groups of adjacent cells (above, below, left, or right) that add up to:
42
12
4
2
5
4
4
2
1
2
9
5
1
0
4
5
2
9
3
3
7
8
6
4
8
4
6
1
0
0
4
0
2
0
1
0
5
0
4
6
0
9
4
0
0
7
2
4
0
1
0
2
8
1
0
2
0
9
2
5
0
1