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 K4g4 draw
3 K4g5 draw
4 K5g4 draw
5 K5g5 draw
6 Kf3 draw
7 Kf6 draw
8 Kg3 draw
9 Kg6 draw
10 Ra1 draw
11 Ra6 draw
12 Ra7 draw
13 Rf8 draw
14 Rh8 draw
15 K4e4 loss in 2 half-moves
16 K4e5 loss in 2 half-moves
17 K5e4 loss in 2 half-moves
18 K5e5 loss in 2 half-moves
19 Ke3 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra5 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
28 Re8 loss in 2 half-moves