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

EGTB: draw

# move score
1 Kb1 draw
2 Kba2 draw
3 Kbb2 draw
4 Kc2 draw
5 Kc3 draw
6 Ka3 loss in 2 half-moves
7 Kaa2 loss in 2 half-moves
8 Kab2 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Ka4 loss in 1 half-moves
11 Kb4 loss in 1 half-moves