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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb7 draw
5 Kc8 draw
6 Kf1 draw
7 Kh1 draw
8 Ra1 draw
9 Rb7 draw
10 Rc1 draw
11 Rd1 draw
12 Re1 draw
13 Kc7 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Kg2 loss in 2 half-moves
16 Kh2 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rf1 loss in 2 half-moves