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

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Rg1 win in 5 half-moves
3 Rg2 win in 5 half-moves
4 Kd1 draw
5 Kd2 draw
6 Ke1 draw
7 Kf1 draw
8 Kf2 draw
9 Kg2 draw
10 Kg3 draw
11 Kg4 draw
12 Kh2 draw
13 Kh4 draw
14 Ra8 draw
15 Re8 draw
16 Rf8 draw
17 Rg4 draw
18 Rh8 draw
19 Kd3 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg7 loss in 2 half-moves