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

EGTB: win in 4 half-moves

# move score
1 Re4 win in 3 half-moves
2 g3 loss in 2 half-moves
3 g4 loss in 2 half-moves
4 Nf2 loss in 2 half-moves
5 Nf4 loss in 2 half-moves
6 Ng1 loss in 2 half-moves
7 Ng5 loss in 2 half-moves
8 Ra2 loss in 2 half-moves
9 Ra5 loss in 2 half-moves
10 Ra6 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Ra1 loss in 1 half-moves
18 Ra3 loss in 1 half-moves
19 Ra7 loss in 1 half-moves
20 Rd4 loss in 1 half-moves