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 Kc4 draw
3 Kc5 draw
4 Kc6 draw
5 Kd4 draw
6 Kd6 draw
7 Ke4 draw
8 Ke5 draw
9 Ke6 draw
10 Ra5 draw
11 Rb1 draw
12 Rb2 draw
13 Rb3 draw
14 Rb4 draw
15 Rb6 draw
16 Rb8 draw
17 Rc5 draw