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

EGTB: win in 10 half-moves

# move score
1 Rc8 win in 9 half-moves
2 Ka7 draw
3 Kb3 draw
4 Kb4 draw
5 Kb5 draw
6 Kb7 draw
7 Kb8 draw
8 Kc3 draw
9 Kc5 draw
10 Ra7 draw
11 Rb7 draw
12 Rh7 draw
13 Kd3 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves