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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Rb7 win in 1 half-moves
4 Kb7 draw
5 Kc7 draw
6 Kd7 draw
7 Kf5 draw
8 Kf6 draw
9 Kf7 draw
10 Kg5 draw
11 Kg7 draw
12 Kh5 draw
13 Kh6 draw
14 Kh7 draw
15 Ra8 draw
16 Rb2 draw
17 Rb3 draw
18 Rb4 draw
19 Kd8 loss in 1 half-moves
20 Rb1 loss in 1 half-moves