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

EGTB: win in 6 half-moves

# move score
1 Rg4 win in 5 half-moves
2 Ka8 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rb8 draw
7 Rc4 draw
8 Rd4 draw
9 Re4 draw
10 Rf4 draw
11 Rh4 draw
12 Ka6 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Kf5 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Kg6 loss in 2 half-moves
22 Kg7 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rb6 loss in 2 half-moves
26 Rb7 loss in 2 half-moves
27 Kb8 loss in 1 half-moves