First move: ##

   A  B  C  D  E  F  G  H
1 |  |  |  |  |  |  |  |  | 1
2 |  |  |  |  |  |  |  |  | 2
3 |  |  |  | 9| 2|17|  |  | 3
4 |  |18| 1|()|##| 5|  |  | 4
5 |  |15| 6|##|()| 3|10|21| 5
6 |20|19|12| 7| 4| 8|  |  | 6
7 |  |  |  |13|11|  |  |  | 7
8 |  |  |14|16|  |  |  |  | 8
   A  B  C  D  E  F  G  H

##:() - 10:15