Légal Trap
Black takes the queen with ...Bxd1 and leaves the king exposed. Bxf7+ forces the king to e7; Nd5 delivers mate. This result depends on the queen grab, not on the gambit alone.
Familiar opening traps, explained on the board
This trap depends on a specific opponent mistake. It is not a guaranteed win from the opening.
Stafford Gambit Trap
White grabs the queen with Bxd8 and overlooks the attack on the king. Bxf2+ forces Ke2; Bg4 then gives mate. White can avoid this line by choosing a better defense.
Lasker Trap
White takes the bishop with Bxb4 while the pawn on e3 can advance with check. The line uses a knight underpromotion to keep checking and eventually wins the queen. It is a material-winning continuation, not a forced-mate lesson.
Elephant Trap
White takes d5 assuming the f6-knight is pinned to the queen. Black can move it: after Bxd8, Bb4+ forces the queen onto the diagonal and Black emerges a piece ahead. This lesson wins material rather than delivering mate.
Kieninger Trap
White captures the bishop with axb4 and overlooks Nd3#. The queen on e7 pins the e2-pawn, so it cannot capture the mating knight. The bishop is poisoned only in this exact position.
Sea-Cadet Mate
After 8...Bxd1, White has mate in two. The queen capture is the stated mistake; the opening does not force Black to choose it.