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 Kf1 draw
3 Kf2 draw
4 Kg1 draw
5 Kh1 draw
6 Kh2 draw
7 Ra8 draw
8 Rb8 draw
9 Rg5 draw
10 Rh8 draw
11 Rc8 loss in 10 half-moves
12 Kf3 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Kh3 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves