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 Kc7 draw
3 Kc8 draw
4 Kd8 draw
5 Ke7 draw
6 Ke8 draw
7 Ra1 draw
8 Ra2 draw
9 Ra4 draw
10 Ra5 draw
11 Ra6 draw
12 Ra7 draw
13 Rc8 draw
14 Rd8 draw
15 Rf8 draw
16 Rg8 draw
17 Rh8 draw
18 Kc6 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Re8 loss in 2 half-moves