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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Ne4 loss in 2 half-moves
4 Ne6 loss in 2 half-moves
5 Nf3 loss in 2 half-moves
6 Nf7 loss in 2 half-moves
7 Nh3 loss in 2 half-moves
8 Nh7 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Rb5 loss in 1 half-moves
20 Rd8 loss in 1 half-moves