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

EGTB: win in 8 half-moves

# move score
1 Rb8 win in 7 half-moves
2 Kc8 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rb4 draw
7 Rc6 draw
8 K6d7 loss in 2 half-moves
9 K6e7 loss in 2 half-moves
10 K8d7 loss in 2 half-moves
11 K8e7 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 K6c7 loss in 1 half-moves
20 K8c7 loss in 1 half-moves
21 Kc5 loss in 1 half-moves
22 Kc6 loss in 1 half-moves