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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Kc5 win in 5 half-moves
3 Kd6 win in 5 half-moves
4 Kd8 win in 5 half-moves
5 Kb5 win in 7 half-moves
6 Kb6 win in 7 half-moves
7 Rb6 win in 9 half-moves
8 K6b7 draw
9 K6c7 draw
10 K6d7 draw
11 K8b7 draw
12 K8c7 draw
13 K8d7 draw
14 Kd5 draw
15 Ra8 draw
16 Rb4 draw
17 Rb7 draw
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves