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

EGTB: win in 4 half-moves

# move score
1 Qb4 win in 3 half-moves
2 Qb8 win in 3 half-moves
3 Qe7 win in 3 half-moves
4 Qe8 win in 3 half-moves
5 Qh6 win in 3 half-moves
6 Qh8 loss in 8 half-moves
7 Qf7 loss in 6 half-moves
8 Nd5 loss in 2 half-moves
9 Nd7 loss in 2 half-moves
10 Ne4 loss in 2 half-moves
11 Ne8 loss in 2 half-moves
12 Ng4 loss in 2 half-moves
13 Ng8 loss in 2 half-moves
14 Nh5 loss in 2 half-moves
15 Nh7 loss in 2 half-moves
16 Qa3 loss in 2 half-moves
17 Qa8 loss in 2 half-moves
18 Qc5 loss in 2 half-moves
19 Qc8 loss in 2 half-moves
20 Qd6 loss in 2 half-moves
21 Qd8 loss in 2 half-moves
22 Qg7 loss in 2 half-moves
23 Qg8 loss in 2 half-moves