Show:
Very Easy
Easy
Hard
Really Hard
Impossible
100

1 x 1

1

100

5 x 6

30

100

15 x 15

225

100

30 x 16

480

100

93742 x 7253

679910726

200

5 x 5 

25

200

7 x 9

63

200

12 x 16

192

200

43 x 38

1634

200

857462 x 763

654243506

300

10 x 5

50

300

12 x 4

48

300

13 x 12

156

300

52 x 64

3328

300

94852 x 958499

90915547148

400

10 x 7

70

400

12 x 11

132

400

14 x 15

210
400

78 x 94

7332

400

564837 x 300

169451100

500

10 x 9

90

500

12 x 12

144

500

19 x 20

380

500
325 x 99

32175

500

3456789035 x 98

338765325430