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 K4a5 draw
4 K4b5 draw
5 K6a5 draw
6 K6b5 draw
7 Ka3 draw
8 Kb3 draw
9 Kb4 draw
10 Kb6 loss in 2 half-moves