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

EGTB: win in 4 half-moves

# move score
1 g5 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Rg6 draw
4 Rg7 draw
5 Rh8 draw
6 Ra8 loss in 2 half-moves
7 Rb8 loss in 2 half-moves
8 Rc8 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re8 loss in 2 half-moves
11 Rg5 loss in 2 half-moves