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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kc4 draw
3 Kd3 draw
4 Kd5 draw
5 Ke3 draw
6 Ke4 draw
7 Ke5 draw
8 Kg7 draw
9 Kg8 draw
10 Kh7 draw
11 Ra4 draw
12 Rb1 draw
13 Rb2 draw
14 Rb3 draw
15 Rb5 draw
16 Rb7 draw
17 Rc4 draw
18 Kc3 loss in 1 half-moves
19 Kc5 loss in 1 half-moves
20 Rb6 loss in 1 half-moves