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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Nb6 draw
3 Ne5 draw
4 Ra7 draw
5 Rb8 draw
6 Rc7 draw
7 Nf8 loss in 12 half-moves
8 Nb8 loss in 8 half-moves
9 Nc5 loss in 2 half-moves
10 Nf6 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves