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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Rc7 win in 3 half-moves
5 Ka4 win in 7 half-moves
6 Ka6 win in 7 half-moves
7 Kb4 win in 7 half-moves
8 Kc7 win in 7 half-moves
9 Ra8 win in 11 half-moves
10 Ke7 draw
11 Kc6 loss in 2 half-moves
12 Kc8 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Ra6 loss in 2 half-moves