Connect all flows of different colors.
1220 levels in 10 packs:

6x6 --> 150 levels, stored in binary string
7x7 --> 150 levels, stored in binary string
8x8 --> 150 levels, stored in binary string
9x9 --> 110 levels, stored in binary string
10x10 --> 110 levels, stored in binary string
11x11 --> 110 levels, stored in binary string
12x12 --> 110 levels, stored in gfx 0x0-0x3000
13x13 --> 110 levels, stored in gfx 0x0-0x3000
14x14 --> 110 levels, stored in gfx 0x0-0x3000
15x15 --> 110 levels, stored in gfx 0x0-0x3000

Have fun!