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

EGTB: win in 8 half-moves

# move score
1 Rb8 win in 7 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd4 draw
6 Kd5 draw
7 Kd6 draw
8 Ke4 draw
9 Ke6 draw
10 Kf4 draw
11 Kf5 draw
12 Kf6 draw
13 Ra5 draw
14 Rb3 draw
15 Rb4 draw
16 Rb6 draw
17 Rb7 draw
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd5 loss in 2 half-moves