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 Rb8 win in 5 half-moves
4 Ra6 win in 7 half-moves
5 Ka6 win in 9 half-moves
6 Ke7 win in 11 half-moves
7 Kd6 win in 13 half-moves
8 Kd7 win in 15 half-moves
9 Ra7 win in 15 half-moves
10 Ka4 draw
11 Kd5 draw
12 Ke5 draw
13 Kf5 draw
14 Kf6 draw
15 Kf7 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rh8 draw
20 Kb4 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves