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 Rb7 win in 3 half-moves
3 Rb5 loss in 4 half-moves
4 Rb8 loss in 4 half-moves
5 Nd7 loss in 2 half-moves
6 Ne6 loss in 2 half-moves
7 Ng6 loss in 2 half-moves
8 Nh7 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Re3 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rh3 loss in 2 half-moves
15 Ra3 loss in 1 half-moves
16 Rb4 loss in 1 half-moves
17 Rd3 loss in 1 half-moves
18 Rf3 loss in 1 half-moves