- { 7, 7, DIFF_EASY, 0, NULL },
- { 10, 10, DIFF_EASY, 0, NULL },
- { 7, 7, DIFF_NORMAL, 0, NULL },
- { 10, 10, DIFF_NORMAL, 0, NULL },
- { 7, 7, DIFF_HARD, 0, NULL },
- { 10, 10, DIFF_HARD, 0, NULL },
- { 10, 10, DIFF_HARD, 1, NULL },
- { 12, 10, DIFF_HARD, 2, NULL },
- { 7, 7, DIFF_HARD, 3, NULL },
- { 9, 9, DIFF_HARD, 4, NULL },
- { 5, 4, DIFF_HARD, 5, NULL },
- { 7, 7, DIFF_HARD, 6, NULL },
- { 5, 5, DIFF_HARD, 7, NULL },
+ { 7, 7, DIFF_EASY, 0 },
+ { 10, 10, DIFF_EASY, 0 },
+ { 7, 7, DIFF_NORMAL, 0 },
+ { 10, 10, DIFF_NORMAL, 0 },
+ { 7, 7, DIFF_HARD, 0 },
+ { 10, 10, DIFF_HARD, 0 },
+ { 10, 10, DIFF_HARD, 1 },
+ { 12, 10, DIFF_HARD, 2 },
+ { 7, 7, DIFF_HARD, 3 },
+ { 9, 9, DIFF_HARD, 4 },
+ { 5, 4, DIFF_HARD, 5 },
+ { 7, 7, DIFF_HARD, 6 },
+ { 5, 5, DIFF_HARD, 7 },
+ { 5, 5, DIFF_HARD, 8 },
+ { 5, 4, DIFF_HARD, 9 },
+ { 5, 4, DIFF_HARD, 10 },
+ { 10, 10, DIFF_HARD, 11 },
+ { 10, 10, DIFF_HARD, 12 }