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 Kc7 loss in 8 half-moves
3 Kc8 loss in 8 half-moves
4 Ra1 loss in 8 half-moves
5 Ka7 loss in 4 half-moves
6 Ka8 loss in 4 half-moves
7 Kb7 loss in 4 half-moves
8 Rb5 loss in 4 half-moves
9 Rb6 loss in 4 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Rf1 loss in 1 half-moves