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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kg6 draw
5 Kh6 draw
6 Rb4 draw
7 Rg5 draw
8 Rh4 draw
9 Kf8 loss in 8 half-moves
10 Kg8 loss in 4 half-moves
11 Kh7 loss in 4 half-moves
12 Kh8 loss in 4 half-moves
13 Ra4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg6 loss in 2 half-moves