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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 loss in 4 half-moves
3 Nf1 loss in 2 half-moves
4 Nf3 loss in 2 half-moves
5 Ng4 loss in 2 half-moves
6 Ra8 loss in 2 half-moves
7 Rb3 loss in 2 half-moves
8 Rb4 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rb6 loss in 1 half-moves
15 Rc8 loss in 1 half-moves
16 Rf8 loss in 1 half-moves
17 Rh8 loss in 1 half-moves