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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rd1 loss in 12 half-moves
3 Kb6 loss in 10 half-moves
4 Kb8 loss in 10 half-moves
5 Kc8 loss in 10 half-moves
6 Rb3 loss in 10 half-moves
7 Ka6 loss in 8 half-moves
8 Ra1 loss in 8 half-moves
9 Rc1 loss in 8 half-moves
10 Ka7 loss in 6 half-moves
11 Ka8 loss in 6 half-moves
12 Rg1 loss in 4 half-moves
13 Kc6 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rh1 loss in 1 half-moves