Thanks to OxxLemmingxxO@aol.com who submitted many of these answers
Stage 1: make all squares yellow
Level 1: 64 squares
1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
16,15,14,13,12,11,10,9
17,18,19,20,21,22,23,24
32,31,30,29,28,27,26,25
33,34,35,36,37,38,39,40
48,47,46,45,44,43,42,41
49,50,51,52,53,54,55,56
64,63,62,61,60,59,58,57
Level 2: 60 squares
1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
16,15,14,13,12,11,10,9
17,18,19,20,21,22,23,24
40,39,38,##,##,27,26,25
41,42,37,##,##,28,29,30
44,43,36,35,34,33,32,31
45,46,47,48,49,50,51,52
60,59,58,57,56,55,54,53
Level 3: 60 squares
1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
16,15,14,13,12,11,10,9
17,18,##,52,51,##,47,46
20,19,54,53,50,49,48,45
21,22,55,56,59,60,43,44
24,23,##,57,58,##,42,41
25,28,29,32,33,36,37,40
26,27,30,31,34,35,38,39
Level 4: 48 squares
43,42,41,40,39,24,23,22
44,##,36,37,38’25,##,21
45,##,35,##,##,26,##,20
46,##,34,31,30,27,##,19
47,##,33,32,29,28,##,18
48,##,##,##,##,##,##,17
9,10,11,12,13,14,15,16
8 , 7 , 6 , 5 , 4 , 3 , 2 , 1
Level 5: 52 squares
7 , 8-10 ,11,12,13,14,15-17,18
6 , 9 ,##,55,54,##, 26 ,19
(more…)