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 Kc7 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Kd6 win in 3 half-moves
6 Rb8 win in 3 half-moves
7 Rc7 win in 3 half-moves
8 Kc5 win in 5 half-moves
9 Ka1 draw
10 Ka2 draw
11 Kb2 draw
12 Kb7 draw
13 Kc1 draw
14 Kc2 draw
15 Kd7 draw
16 Ra8 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves