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

EGTB: win in 8 half-moves

# move score
1 Kab6 win in 7 half-moves
2 Kb4 win in 7 half-moves
3 Rb6 win in 7 half-moves
4 Ka4 win in 9 half-moves
5 Kab5 draw
6 Kcb6 draw
7 Kb7 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kc7 loss in 2 half-moves
10 Kcb5 loss in 2 half-moves
11 Kd5 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Ra8 loss in 2 half-moves