7×7
8×8
9×9
10×10
11×11
12×12
13×13
Easy
Medium
Hard
Cruel
New puzzle
Next level
Clear emitters
Level:
1
Emitters:
0
/
0
Clues matched:
0
/
0
Status:
In progress
Tap cells to place/remove emitters • Numbers are sums • Walls block spread • Match all target cells exactly • Unique solution (exactly K emitters)
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