Line 30: Line 30:
before (I think).<br>
before (I think).<br>


[Diagram of a 5 x 5 square board. It has numbers in 21 of the squares with 4 entirely blacked out (as shown):
[Diagram of a 5 x 5 square board. It has numbers in 21 of the squares with 4 entirely blacked out (as shown):<br>
15, 12, 10, 9, -7<br>
15, 12, 10, 9, -7<br>
8,  B,  8,  B,  5<br>
8,  B,  8,  B,  5<br>