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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kb8 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Kd7 win in 3 half-moves
6 Kd8 win in 3 half-moves
7 Kb3 win in 5 half-moves
8 Kc3 win in 5 half-moves
9 Kc4 win in 5 half-moves
10 Ra8 win in 5 half-moves
11 Rb8 win in 5 half-moves
12 Rd8 win in 5 half-moves
13 Ka3 win in 7 half-moves
14 Ka4 win in 7 half-moves
15 Ka5 win in 7 half-moves
16 Kb5 win in 7 half-moves
17 Kc5 win in 7 half-moves
18 Re8 win in 9 half-moves
19 Kc6 draw
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves