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 Kb8 win in 3 half-moves
3 Ra6 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Kd6 win in 5 half-moves
6 Rd6 win in 5 half-moves
7 Kf6 win in 7 half-moves
8 Ka7 draw
9 Kf5 draw
10 Kf7 draw
11 Rc3 draw
12 Kd5 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rc8 loss in 2 half-moves