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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 Rg7 win in 1 half-moves
3 Rg8 win in 1 half-moves
4 Re1 win in 3 half-moves
5 Ra1 loss in 2 half-moves
6 Rb1 loss in 2 half-moves
7 Rc1 loss in 2 half-moves
8 Rd1 loss in 2 half-moves
9 Rf1 loss in 2 half-moves
10 Rg2 loss in 2 half-moves
11 Rg4 loss in 2 half-moves
12 Rg5 loss in 2 half-moves
13 Rg6 loss in 2 half-moves
14 Rh1 loss in 2 half-moves