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 Rg4 win in 1 half-moves
3 Rg6 win in 1 half-moves
4 Ra8 loss in 10 half-moves
5 Rh8 loss in 10 half-moves
6 Rb8 loss in 2 half-moves
7 Rc8 loss in 2 half-moves
8 Rd8 loss in 2 half-moves
9 Re8 loss in 2 half-moves
10 Rf8 loss in 2 half-moves
11 Rg1 loss in 2 half-moves
12 Rg2 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rg5 loss in 2 half-moves
15 Rg7 loss in 2 half-moves