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

EGTB: win in 4 half-moves

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