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 Kc1 draw
3 Kc2 draw
4 Kc3 draw
5 Kd1 draw
6 Kd3 draw
7 Kd7 draw
8 Kd8 draw
9 Ke1 draw
10 Ke2 draw
11 Ke3 draw
12 Ke7 draw
13 Kf7 draw
14 Kf8 draw
15 Ra1 draw
16 Ra2 draw
17 Ra5 draw
18 Ra6 draw
19 Ra7 draw
20 Rc8 draw
21 Rd8 draw
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves