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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rf8 loss in 4 half-moves
3 Rg8 loss in 4 half-moves
4 Rb2 loss in 2 half-moves
5 Rb3 loss in 2 half-moves
6 Rb5 loss in 2 half-moves
7 Rc8 loss in 2 half-moves
8 Rd8 loss in 2 half-moves
9 Re8 loss in 2 half-moves
10 Ka1 loss in 1 half-moves
11 Ka2 loss in 1 half-moves
12 Kb2 loss in 1 half-moves
13 Kc1 loss in 1 half-moves
14 Kc2 loss in 1 half-moves
15 Ra8 loss in 1 half-moves
16 Rb6 loss in 1 half-moves
17 Rb7 loss in 1 half-moves
18 Rh8 loss in 1 half-moves