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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Kb2 draw
4 Kc2 draw
5 Kd1 draw
6 Kd2 draw
7 Kg7 draw
8 Kg8 draw
9 Kh7 draw
10 Ra1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb5 draw
14 Rb6 draw
15 Rb4 loss in 1 half-moves