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

EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Rg1 draw
7 Rg3 draw
8 Rg4 draw
9 Rg8 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Kfg1 loss in 2 half-moves
14 Kfg2 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Khg1 loss in 2 half-moves
17 Khg2 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rh7 loss in 2 half-moves