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 Rb4 win in 1 half-moves
3 Rc3 win in 1 half-moves
4 Rd3 win in 1 half-moves
5 Re3 win in 1 half-moves
6 Rf3 win in 1 half-moves
7 Ra3 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb2 loss in 2 half-moves
10 Rg3 loss in 2 half-moves
11 Rh3 loss in 2 half-moves