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