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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Kb7 win in 7 half-moves
4 Ra5 win in 7 half-moves
5 Ka6 draw
6 Ka8 draw
7 Kab6 draw
8 Kb8 draw
9 Rb1 draw
10 Rb2 draw
11 Rb6 draw
12 Kb4 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kcb6 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves