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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Ra3 draw
3 Rb3 draw
4 Rc3 draw
5 Rd3 draw
6 Rg1 draw
7 Rg2 draw
8 Rg6 draw
9 Rg8 draw
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Kf7 loss in 2 half-moves
13 Kfg7 loss in 2 half-moves
14 Kfg8 loss in 2 half-moves
15 Kh7 loss in 2 half-moves
16 Khg7 loss in 2 half-moves
17 Khg8 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rg5 loss in 2 half-moves
22 Rh3 loss in 2 half-moves