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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra7 loss in 6 half-moves
3 Rb1 loss in 6 half-moves
4 Rb2 loss in 6 half-moves
5 Na6 loss in 2 half-moves
6 Na8 loss in 2 half-moves
7 Nb5 loss in 2 half-moves
8 Nd5 loss in 2 half-moves
9 Ne6 loss in 2 half-moves
10 Ne8 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves