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 Ra4 win in 5 half-moves
3 Ra6 win in 5 half-moves
4 Rf8 win in 5 half-moves
5 Ke4 draw
6 Ke5 draw
7 Ke6 draw
8 Kf1 draw
9 Kf2 draw
10 Kf4 draw
11 Kf6 draw
12 Kg2 draw
13 Kg4 draw
14 Kg5 draw
15 Kh1 draw
16 Kh2 draw
17 Ra3 draw
18 Ra5 draw
19 Ra7 draw
20 Re8 draw
21 Rh8 draw
22 Kg6 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rb8 loss in 2 half-moves
26 Rc8 loss in 2 half-moves
27 Rd8 loss in 2 half-moves