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

EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Rh8 win in 7 half-moves
3 Kf5 draw
4 Kg1 draw
5 Kg2 draw
6 Kg3 draw
7 Kg5 draw
8 Kh2 draw
9 Kh3 draw
10 Kh4 draw
11 Kh5 draw
12 Ra8 draw
13 Rf8 draw
14 Rg6 draw
15 Rg7 draw
16 Kf3 loss in 2 half-moves
17 Kf4 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves