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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 K1g1 draw
3 K2g1 draw
4 Kh3 draw
5 Ra8 draw
6 Rg2 draw
7 Rg6 draw
8 Rg7 draw
9 Rh8 draw
10 K1g2 loss in 2 half-moves
11 K2g2 loss in 2 half-moves
12 Kg3 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 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 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves