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 Kc7 draw
3 Kc8 draw
4 Kd7 draw
5 Rb1 draw
6 Rb2 draw
7 Rb4 draw
8 Rb5 draw
9 Rb7 draw
10 Rb8 draw
11 Rc3 draw
12 Rd3 draw
13 Re3 draw
14 Rf3 draw
15 Rg3 draw
16 Ke7 loss in 2 half-moves
17 Ke8 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Rh3 loss in 2 half-moves