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tetrisphere rescue level criteria - episode 4
core area
layers
square
horiz I
vert I
L
Z
T
4-1
2x2
3
4-2
3x3
4
4-3
4x4
3
4-4
2x2
4
4-5
4x4
3
4-6
2x2
4
4-7
3x3
4
4-8
3x3
4
4-9
3x3
4
4-10
4x4
4
main
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