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

EGTB: win in 1 half-moves

# move score
1 Rxe1 win in 1 half-moves
2 gxf4 loss in 4 half-moves
3 Nxf4 loss in 2 half-moves
4 Rxf4 loss in 2 half-moves