Total SuperQueen Solutions
for Rectangular Chessboards
Number of Columns: 4


Number of Rows

Total Solutions

4

0

5

0

6

0

7

0

8

12

9

60

10

180

11

432

12

900

13

1,692

14

2,940

15

4,800

16

7,452

17

11,100

18

15,972

19

22,320

20

30,420

21

40,572

22

53,100

23

68,352

24

86,700

25

108,540

26

134,292

27

164,400

28

199,332

29

239,580

30

285,660

Equation (where "r" is the number of rows):
solutions = [(r7)*(r6)*(r5)*(r4)+(r10)*(r9)*(r8)*(r7)]/2
for r > 7