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

EGTB: win in 4 half-moves

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