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 Kb6 draw
5 Kb8 draw
6 Ra1 draw
7 Rb3 draw
8 Rb5 draw
9 Rb6 draw
10 Rc1 draw
11 Ka6 loss in 8 half-moves
12 Kc6 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Rb4 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 Rh1 loss in 2 half-moves
20 Rg1 loss in 1 half-moves