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

EGTB: win in 4 half-moves

# move score
1 Ka3 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Kc7 win in 3 half-moves
5 Kcb5 win in 3 half-moves
6 Kd7 win in 3 half-moves
7 Rb5 win in 3 half-moves
8 Rb7 win in 3 half-moves
9 Kb3 win in 5 half-moves
10 Kd6 win in 9 half-moves
11 Rb8 win in 13 half-moves
12 Kbb5 draw
13 Kcc5 draw
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Kbc5 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves