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

EGTB: win in 4 half-moves

# move score
1 b5 win in 3 half-moves
2 Rh4 draw
3 Rh1 loss in 8 half-moves
4 Rh2 loss in 8 half-moves
5 Rh3 loss in 8 half-moves
6 Rf5 loss in 4 half-moves
7 Rg5 loss in 4 half-moves
8 Ra5 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rc5 loss in 2 half-moves
11 Rd5 loss in 2 half-moves
12 Re5 loss in 2 half-moves
13 Rh6 loss in 2 half-moves
14 Rh7 loss in 2 half-moves
15 Rh8 loss in 2 half-moves