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 Rb8 draw
3 Rc8 draw
4 Rd8 draw
5 Rg1 draw
6 Rg2 draw
7 Rg3 draw
8 Rg5 draw
9 Rh8 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Kg1 loss in 2 half-moves
14 Kg2 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves