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

EGTB: win in 2 half-moves

# move score
1 Ka7 win in 1 half-moves
2 Kb7 win in 1 half-moves
3 K6b6 draw
4 K5b6 loss in 2 half-moves
5 Ka4 loss in 2 half-moves
6 Kb4 loss in 2 half-moves
7 K5b5 loss in 1 half-moves
8 K6b5 loss in 1 half-moves