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 Kd7 win in 3 half-moves
4 Rb4 win in 3 half-moves
5 Rb6 win in 3 half-moves
6 Rb7 win in 3 half-moves
7 Kc4 win in 7 half-moves
8 Kc6 win in 7 half-moves
9 Kd6 win in 7 half-moves
10 Rb5 win in 7 half-moves
11 Kd8 win in 13 half-moves
12 Kb4 win in 15 half-moves
13 Kb5 win in 19 half-moves
14 Kb6 win in 19 half-moves
15 Kd4 draw
16 Kd5 draw
17 Ra8 draw
18 Rb3 draw
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves