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

EGTB: win in 1 half-moves

# move score
1 c8=R win in 5 half-moves
2 c8=K draw
3 c8=N loss in 4 half-moves
4 c8=B loss in 2 half-moves
5 c8=Q loss in 2 half-moves