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

EGTB: loss in 5 half-moves

# move score
1 Ra4 loss in 4 half-moves
2 f8=B loss in 2 half-moves
3 f8=K loss in 2 half-moves
4 f8=N loss in 2 half-moves
5 f8=Q loss in 2 half-moves
6 f8=R loss in 2 half-moves
7 Nb3 loss in 2 half-moves
8 Nc2 loss in 2 half-moves
9 Ra2 loss in 2 half-moves
10 Ra3 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves
20 Rb8 loss in 1 half-moves