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

EGTB: win in 2 half-moves

# move score
1 b6 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Re5 win in 1 half-moves
4 Re7 win in 1 half-moves
5 Rf8 win in 1 half-moves
6 Rh8 win in 1 half-moves
7 Ra8 loss in 2 half-moves
8 Rc8 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re1 loss in 2 half-moves
11 Re2 loss in 2 half-moves
12 Re3 loss in 2 half-moves
13 Re4 loss in 2 half-moves
14 Re6 loss in 2 half-moves
15 Rg8 loss in 2 half-moves