2 x 3 = 6 squares
[ 1 4 ]
[ 2 3 ]
[ 6 5 ]
[ 1 4 ]
[ 3 2 ]
[ 5 6 ]
3 x 3 = 9 squares
[ 1 6 3 ]
[ 2 5 8 ]
[ 7 4 9 ]
[ 1 8 2 ]
[ 6 3 9 ]
[ 4 7 5 ]
[ 3 4 1 ]
[ 2 5 8 ]
[ 9 6 7 ]
4 x 3 = 12 squares
[ 11 8 10 1 ]
[ 12 7 5 6 ]
[ 4 9 3 2 ]
[ 12 3 5 2 ]
[ 7 8 6 1 ]
[ 11 10 4 9 ]
7 x 3 = 21 squares
[ 4 16 19 2 1 17 5 ]
[ 7 13 10 11 12 6 18 ]
[ 20 14 9 8 15 21 3 ]
8 x 3 = 24 squares
[ 22 15 19 11 10 9 6 4 ]
[ 16 21 17 13 14 5 8 2 ]
[ 23 18 20 24 3 12 1 7 ]
5 x 5 = 25 squares
[ 1 18 2 23 3 ]
[ 15 4 20 5 25 ]
[ 6 17 7 22 8 ]
[ 14 9 19 10 24 ]
[ 11 16 12 21 13 ]
[ 3 16 2 21 1 ]
[ 14 5 19 4 24 ]
[ 8 17 7 22 6 ]
[ 15 10 20 9 25 ]
[ 13 18 12 23 11 ]
[ 21 2 11 4 1 ]
[ 6 17 8 7 10 ]
[ 23 12 13 14 3 ]
[ 16 19 18 9 20 ]
[ 25 22 15 24 5 ]
[ 23 10 24 5 25 ]
[ 12 21 7 22 2 ]
[ 18 9 19 4 20 ]
[ 11 16 6 17 1 ]
[ 13 8 14 3 15 ]
[ 25 4 15 2 5 ]
[ 10 19 8 9 6 ]
[ 23 14 13 12 3 ]
[ 20 17 18 7 16 ]
[ 21 24 11 22 1 ]
[ 25 8 24 3 23 ]
[ 11 22 6 21 1 ]
[ 20 9 19 4 18 ]
[ 12 17 7 16 2 ]
[ 15 10 14 5 13 ]
9 x 3 = 27 squares
[ 22 15 4 24 12 13 2 23 5 ]
[ 27 10 21 7 19 6 17 8 26 ]
[ 3 20 11 25 1 14 9 18 16 ]
6 x 5 = 30 squares
[ 28 23 27 12 26 1 ]
[ 29 22 18 21 7 20 ]
[ 17 24 16 13 15 2 ]
[ 30 11 19 10 8 9 ]
[ 6 25 5 14 4 3 ]
[ 30 5 19 4 8 3 ]
[ 11 24 10 13 9 2 ]
[ 29 16 18 15 7 14 ]
[ 22 23 21 12 20 1 ]
[ 28 27 17 26 6 25 ]
11 x 3 = 33 squares
[ 20 23 25 2 1 22 5 33 14 24 3 ]
[ 26 17 15 12 13 10 27 11 30 8 29 ]
[ 19 28 4 7 18 21 16 32 9 31 6 ]
12 x 3 = 36 squares
[ 20 34 36 9 19 5 2 22 3 30 7 23 ]
[ 28 26 24 21 11 13 16 8 27 6 29 1 ]
[ 33 35 15 18 14 12 17 25 10 31 4 32 ]