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 Ra7 win in 5 half-moves
4 Rb7 win in 5 half-moves
5 Kc8 win in 9 half-moves
6 Rh7 win in 9 half-moves
7 Rc8 win in 13 half-moves
8 Kb4 draw
9 Kc4 draw
10 Kc6 draw
11 Ke8 draw
12 Kd4 loss in 2 half-moves
13 Kd5 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves