First move: ##

   A  B  C  D  E  F  G  H
1 |  |  |19|20|39|42|45|  | 1
2 |30|  |23| 8|17|18|  |49| 2
3 |29|27| 2| 3|16| 9|24|48| 3
4 |15|14| 1|()|##| 6|41|44| 4
5 |28|13| 4|##|()| 7|46|47| 5
6 |26|21|11| 5|22|36|32|37| 6
7 |  |43|12|10|25|35|  |  | 7
8 |50|40|33|31|38|34|  |  | 8
   A  B  C  D  E  F  G  H

##:() - 24:30