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 Kb7 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Kd6 win in 3 half-moves
6 Kd7 win in 3 half-moves
7 Rb6 win in 3 half-moves
8 Rd6 win in 3 half-moves
9 Rc7 win in 11 half-moves
10 Ka5 win in 19 half-moves
11 Ka7 draw
12 Ke5 draw
13 Ke7 draw
14 Kf7 draw
15 Rc2 draw
16 Rc8 draw
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rc5 loss in 2 half-moves