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 Kd6 draw
3 Kd7 draw
4 Kd8 draw
5 Ke6 draw
6 Ke8 draw
7 Kf6 draw
8 Kf7 draw
9 Kf8 draw
10 Ra3 draw
11 Ra4 draw
12 Ra6 draw
13 Ra7 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf8 draw
18 Rg8 draw
19 Ra2 loss in 4 half-moves
20 Ra1 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Rh8 loss in 2 half-moves