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

EGTB: win in 42 half-moves

# move score
1 Kb6 win in 41 half-moves
2 Kb7 win in 41 half-moves
3 Rc8 win in 41 half-moves
4 Kd7 win in 43 half-moves
5 Kb8 win in 45 half-moves
6 Rd8 win in 45 half-moves
7 Kd8 win in 47 half-moves
8 Ka6 win in 49 half-moves
9 Ke7 win in 49 half-moves
10 Kf8 win in 49 half-moves
11 Rb8 win in 49 half-moves
12 Kf7 win in 51 half-moves