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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka5 draw
3 Kab3 draw
4 Kab4 draw
5 Kcb3 draw
6 Kd3 draw
7 Rb3 draw
8 Kb2 loss in 2 half-moves
9 Kc2 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kcb4 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Ra2 loss in 2 half-moves