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 Kd1 draw
3 Kd2 draw
4 Kd3 draw
5 Ke1 draw
6 Ke3 draw
7 Ke8 draw
8 Kf1 draw
9 Kf2 draw
10 Kf3 draw
11 Ra1 draw
12 Ra2 draw
13 Ra3 draw
14 Ra4 draw
15 Ra5 draw
16 Ra6 draw
17 Rc8 draw
18 Kc7 loss in 2 half-moves
19 Kc8 loss in 2 half-moves
20 Kd7 loss in 2 half-moves
21 Ke7 loss in 2 half-moves
22 Ra7 loss in 2 half-moves