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