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 Kb7 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Rd7 win in 3 half-moves
6 Kd6 win in 7 half-moves
7 Kd8 win in 7 half-moves
8 Ke6 win in 7 half-moves
9 Ke8 win in 7 half-moves
10 Kd7 win in 9 half-moves
11 Kf8 win in 11 half-moves
12 Ka5 win in 15 half-moves
13 Kf7 win in 25 half-moves
14 Rc7 win in 25 half-moves
15 Ra8 win in 27 half-moves
16 Kf6 loss in 2 half-moves