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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Kb7 win in 5 half-moves
3 Kc5 win in 9 half-moves
4 Ka4 loss in 2 half-moves
5 Kab6 loss in 2 half-moves
6 Kb4 loss in 2 half-moves
7 Kbb6 loss in 2 half-moves
8 Kc4 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves