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 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kc1 draw
6 Kc2 draw
7 Kg5 draw
8 Kg6 draw
9 Kg7 draw
10 Kh5 draw
11 Kh7 draw
12 Ra8 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Rf8 draw
17 Rg8 draw
18 Rh7 draw