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

EGTB: loss in 7 half-moves

# move score
1 b5 loss in 6 half-moves
2 Ra1 loss in 4 half-moves
3 Rb3 loss in 2 half-moves
4 Rc1 loss in 2 half-moves
5 Rd1 loss in 2 half-moves
6 Re1 loss in 2 half-moves
7 Rf1 loss in 2 half-moves
8 Rg1 loss in 2 half-moves
9 Rh1 loss in 2 half-moves
10 Rb2 loss in 1 half-moves