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