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

EGTB: win in 1 half-moves

# move score
1 Kxe1 win in 1 half-moves
2 Kfxg3 loss in 2 half-moves
3 Kgxg3 loss in 2 half-moves
4 Rxg3 loss in 2 half-moves