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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 K3d3 win in 3 half-moves
3 K3d4 win in 3 half-moves
4 K4d3 win in 3 half-moves
5 K4d4 win in 3 half-moves
6 Kb2 win in 3 half-moves
7 Kc2 win in 3 half-moves
8 Kd2 win in 3 half-moves
9 Kd5 win in 3 half-moves
10 Rb1 win in 3 half-moves
11 Rb2 win in 3 half-moves
12 Rb4 win in 3 half-moves
13 Rb7 win in 3 half-moves
14 K3b4 win in 5 half-moves
15 Kb5 win in 5 half-moves
16 Kc5 win in 5 half-moves
17 Ra3 win in 5 half-moves
18 K4b4 draw
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves