Legal's trap is named after the French player Sire de Legall, one of the best players of the 1700s. Although 5. Nxe5 is a losing move, as it leaves White's knight hanging, a naive opponent might capture White's queen with 5...Bxd1??. This leads to a mate in 2 for White (6. Bxf7+! Ke7 7. Nd5#).

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. Nc3 Bg4 5. Nxe5