Click on the third or sixth rank to set the en passant target square.

EGTB: win in 42 half-moves

# move score
1 Kb5 win in 41 half-moves
2 Kb6 win in 43 half-moves
3 Kab7 win in 45 half-moves
4 Ka5 win in 47 half-moves
5 Kc8 win in 47 half-moves
6 Kaa7 win in 49 half-moves
7 Kba7 loss in 2 half-moves
8 Kbb7 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Ra7 loss in 2 half-moves