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

EGTB: win in 20 half-moves

# move score
1 Rb8 win in 19 half-moves
2 Kb3 draw
3 Kc3 draw
4 Kc5 draw
5 Kd3 draw
6 Kd4 draw
7 Kd5 draw
8 Kf7 draw
9 Kf8 draw
10 Kg7 draw
11 Kh7 draw
12 Kh8 draw
13 Ra4 draw
14 Rb5 draw
15 Rb6 draw
16 Rb7 draw
17 Kb5 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves