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

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rf7 draw
5 Rg6 draw
6 Rg8 draw
7 Rh7 draw
8 Rc7 loss in 2 half-moves
9 Rd7 loss in 2 half-moves
10 Re7 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rg2 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rg5 loss in 2 half-moves