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

EGTB: loss in 9 half-moves

# move score
1 Ra1 loss in 8 half-moves
2 g3 loss in 4 half-moves
3 g4 loss in 4 half-moves
4 Rg1 loss in 4 half-moves
5 Rh1 loss in 4 half-moves
6 Nd1 loss in 2 half-moves
7 Nd3 loss in 2 half-moves
8 Ne4 loss in 2 half-moves
9 Ng4 loss in 2 half-moves
10 Nh1 loss in 2 half-moves
11 Nh3 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves