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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Ra7 loss in 2 half-moves
3 Rb7 loss in 2 half-moves
4 Rd7 loss in 2 half-moves
5 Re7 loss in 2 half-moves
6 Rf7 loss in 2 half-moves
7 Rg1 loss in 2 half-moves
8 Rg2 loss in 2 half-moves
9 Rg3 loss in 2 half-moves
10 Rg4 loss in 2 half-moves
11 Rg6 loss in 2 half-moves
12 Rh7 loss in 2 half-moves
13 a3 loss in 1 half-moves
14 Kg3 loss in 1 half-moves
15 Kg4 loss in 1 half-moves
16 Kg5 loss in 1 half-moves
17 Kh3 loss in 1 half-moves
18 Kh5 loss in 1 half-moves
19 Rc7 loss in 1 half-moves
20 Rg5 loss in 1 half-moves