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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 K3g3 draw
3 K4g3 draw
4 Kg2 draw
5 Kh2 draw
6 Kh5 draw
7 Ra1 draw
8 Rb8 draw
9 Rc8 draw
10 Rh8 draw
11 K3g4 loss in 2 half-moves
12 K4g4 loss in 2 half-moves
13 Kg5 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 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves