Marshall defense

The Marshall Defense is a chess opening that begins with the moves:

The Marshall Defense is the weakest of the Black replies listed.

Marshall Defense 1.

The Marshall Defense is a dubious variation of the Queen's Gambit Declined.

Another opening named after Marshall is the Marshall Defense to the Queen's Gambit (1.

Similarly, the Marshall Defense (2...Nf6) is very rarely seen in grandmaster play, as most theoreticians consider it definitely inferior for Black.

Although Fischer had the advantage of the white pieces, Spassky used the Marshall Defense to the Ruy Lopez to draw easily in 37 moves.