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 Kg1 draw
3 Kg2 draw
4 Kg3 draw
5 Kh1 draw
6 Kh3 draw
7 Rc8 draw
8 Rf8 draw
9 Rg1 draw
10 Rg3 draw
11 Rh8 draw
12 Ra8 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg5 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Re8 loss in 1 half-moves