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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Ra7 win in 3 half-moves
4 Ra8 win in 7 half-moves
5 Ka7 draw
6 Kb7 draw
7 Kc6 loss in 4 half-moves
8 Ka4 loss in 2 half-moves
9 Kab5 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kbb5 loss in 2 half-moves