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

EGTB: win in 10 half-moves

# move score
1 Kc5 win in 9 half-moves
2 Ra1 draw
3 Kb7 loss in 2 half-moves
4 Kb8 loss in 2 half-moves
5 Kc4 loss in 2 half-moves
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kd4 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Ke4 loss in 1 half-moves
21 Ke5 loss in 1 half-moves
22 Ke6 loss in 1 half-moves