Number Island
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Number Island
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Long · 2026-11-12
★★★
☆☆
Form groups of adjacent cells (above, below, left, or right) that add up to:
9
16
18
12
20
0
6
0
0
3
9
0
3
0
3
0
4
4
5
0
2
0
7
0
0
0
3
1
0
5
4
0
0
0
7
2
1
4
0
9
3