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

EGTB: win in 1 half-moves

# move score
1 Rxf6 win in 1 half-moves
2 Nxc3 loss in 1 half-moves
3 R1xc3 loss in 1 half-moves
4 R6xc3 loss in 1 half-moves