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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Kb4 draw
4 Kc4 draw
5 Kc6 draw
6 Kf7 draw
7 Kf8 draw
8 Kg7 draw
9 Kh7 draw
10 Kh8 draw
11 Ra5 draw
12 Rb1 draw
13 Rb3 draw
14 Rb4 draw
15 Rb6 draw
16 Kb6 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Rb2 loss in 1 half-moves