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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Kd1 draw
3 Kd2 draw
4 Ke2 draw
5 Ra1 draw
6 Ra5 draw
7 Ra6 draw
8 Ra7 draw
9 Rb4 draw
10 Rf4 draw
11 Kf1 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves