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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 loss in 4 half-moves
3 Nd7 loss in 2 half-moves
4 Ne6 loss in 2 half-moves
5 Ng6 loss in 2 half-moves
6 Nh7 loss in 2 half-moves
7 Ra2 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb4 loss in 2 half-moves
10 Rb5 loss in 2 half-moves
11 Rb6 loss in 2 half-moves
12 Rd2 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Rg2 loss in 2 half-moves
15 Rh2 loss in 2 half-moves
16 Rb3 loss in 1 half-moves
17 Rc2 loss in 1 half-moves
18 Rf2 loss in 1 half-moves