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 Kf5 loss in 12 half-moves
3 Kg5 loss in 4 half-moves
4 Kh5 loss in 4 half-moves
5 Kf6 loss in 2 half-moves
6 Kf7 loss in 2 half-moves
7 Kg7 loss in 2 half-moves
8 Kh6 loss in 2 half-moves
9 Kh7 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Re1 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg3 loss in 2 half-moves
17 Rg5 loss in 2 half-moves
18 Rh1 loss in 2 half-moves
19 Rb1 loss in 1 half-moves