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

EGTB: win in 4 half-moves

# move score
1 K5a6 win in 3 half-moves
2 K5c6 win in 3 half-moves
3 Ka4 win in 3 half-moves
4 Ra7 win in 3 half-moves
5 K6c6 win in 7 half-moves
6 Ka7 win in 7 half-moves
7 Kb4 win in 7 half-moves
8 Kb7 win in 7 half-moves
9 Kc7 win in 7 half-moves
10 Ra1 win in 7 half-moves
11 Ra6 win in 7 half-moves
12 Ra8 win in 7 half-moves
13 K6a6 draw
14 K5c5 loss in 2 half-moves
15 K6c5 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves