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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kc4 win in 3 half-moves
4 Kd2 win in 3 half-moves
5 Kd4 win in 3 half-moves
6 Rb2 win in 3 half-moves
7 Rb4 win in 3 half-moves
8 Ka7 win in 5 half-moves
9 Kc3 win in 5 half-moves
10 Kc7 win in 5 half-moves
11 Rb5 win in 5 half-moves
12 Ke3 win in 7 half-moves
13 Ke2 win in 9 half-moves
14 Ke4 win in 9 half-moves
15 Kb5 win in 11 half-moves
16 Rb1 win in 13 half-moves
17 Ka5 loss in 2 half-moves
18 Ka6 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Rc3 loss in 2 half-moves