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 Kb1 win in 3 half-moves
3 Kb3 win in 3 half-moves
4 Kb7 win in 3 half-moves
5 Kc1 win in 3 half-moves
6 Kc3 win in 3 half-moves
7 Kc7 win in 3 half-moves
8 Kd1 win in 3 half-moves
9 Kd3 win in 3 half-moves
10 Rb1 win in 3 half-moves
11 Rb3 win in 3 half-moves
12 Rb5 win in 3 half-moves
13 Kd2 win in 13 half-moves
14 Kb5 win in 15 half-moves
15 Rb4 win in 19 half-moves
16 Ka5 loss in 2 half-moves
17 Ka6 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Ra2 loss in 2 half-moves