1 2 3       4 5 6 7     8   9           10     11         12   13 14     15   16           17           18   19       20   21     22 23   24 25 26       27   28   29           30
* indicates the solution is a prime number
Across	Down
1: 10 across + 2 x 11 across *	1: 5 down + 2 x 11 across *
4: 26 down +2 x 1 across	2: 22 across + 2 x 21 across *
7: 11 across x 24 down - 2 x 5 down	3: 21 across + 2 x 4 across
9: (10 across x 12 down)/3	4: 28 down + 2 x 1 across
10: 11 across + 28 down - 22 across	5: 11 across + 2 x 21 across
11: 21 across squared - 2 x 2 down	6: 28 down + 2 x 26 down *
13: 22 across + 2 x 6 down	8: 16 across + 9 down - 14 down
16: (11 across x 18 across)/ 15	9: 21 across + 6 x 26 down
17: 8 down + 2 x 21 across	12: 5 down + 2 x 2 down
18: 26 down + 2 x 2 down	14: 4 across + 2 x 21 across *
21: (23 down - 4 down)/2 *	15: 5 down + 4 x 18 across
22: 4 x 5 down - 5 x 10 across	18: 2 down + 2 x 28 down
25: 2 x 29 across - 28 down	19: 5 down + 4 x 21 down
27: 21 across x 16 across	20: 24 down + 2 x 1 down
29: 22 across + 2 x 4 across	21: 21 across + 2 x 11 across
30: 28 down + 2 x 4 across	23: 2 down + 2 x 24 down
	24: 10 across + 8 x 21 across
	26: (10 across + 2 down)/2
	28: 21 across squared - 4 x 22 across *

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