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

EGTB: win in 4 half-moves

# move score
1 Rh5 win in 3 half-moves
2 Rh8 win in 3 half-moves
3 Nd6 win in 5 half-moves
4 Nc7 win in 7 half-moves
5 Nf6 draw
6 Ng7 draw
7 Rg7 draw
8 d8=B loss in 2 half-moves
9 d8=K loss in 2 half-moves
10 d8=N loss in 2 half-moves
11 d8=Q loss in 2 half-moves
12 d8=R loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rh1 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rh3 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rh6 loss in 2 half-moves