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

EGTB: draw

# move score
1 Kab2 draw
2 Kab3 draw
3 Kb1 draw
4 Kc1 draw
5 Kcb2 draw
6 Kd1 draw
7 Kd2 draw
8 Kd3 draw
9 Ka2 loss in 4 half-moves
10 Kc3 loss in 4 half-moves
11 Kcb3 loss in 4 half-moves
12 Ka4 loss in 2 half-moves
13 Kb4 loss in 2 half-moves