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 Kg6 draw
3 Kg7 draw
4 Kg8 draw
5 Kh6 draw
6 Kh8 draw
7 Ra3 draw
8 Ra4 draw
9 Ra5 draw
10 Ra6 draw
11 Ra7 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rf8 draw
16 Rh8 draw
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rg8 loss in 2 half-moves