Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Ka7 draw
3 Kb6 draw
4 Kc7 draw
5 Ra6 draw
6 Ra7 draw
7 Rb8 draw
8 Re8 draw
9 Kb8 loss in 18 half-moves
10 Ka6 loss in 10 half-moves
11 Kc6 loss in 6 half-moves
12 Kc8 loss in 4 half-moves
13 Ra1 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves