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

EGTB: win in 2 half-moves

# move score
1 Rg7 win in 1 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Rb7 draw
6 Rc8 draw
7 Rd7 draw
8 Ra7 loss in 8 half-moves
9 Kc5 loss in 4 half-moves
10 Kd5 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves