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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Ka6 draw
3 Ka8 draw
4 Kb6 draw
5 Kb7 draw
6 Kd5 draw
7 Ke7 draw
8 Ra8 draw
9 Rc8 draw
10 Re7 draw
11 Kd6 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Kf6 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves