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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Rb5 win in 3 half-moves
5 Rb6 win in 3 half-moves
6 Rb7 win in 3 half-moves
7 Kb6 win in 7 half-moves
8 Kd7 win in 7 half-moves
9 Ka4 win in 9 half-moves
10 Ka6 win in 9 half-moves
11 Kb4 win in 9 half-moves
12 Kb5 win in 9 half-moves
13 Ra8 win in 9 half-moves
14 Kd8 win in 13 half-moves
15 Rb3 draw
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves