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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Ra1 draw
3 Rb1 draw
4 Rh2 draw
5 Rh3 draw
6 Rh4 draw
7 Rh8 draw
8 Rc1 loss in 2 half-moves
9 Rd1 loss in 2 half-moves
10 Rf1 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rh5 loss in 2 half-moves
13 Rh6 loss in 2 half-moves
14 Rh7 loss in 2 half-moves