Dubious Therefore Playable

As the brilliant and witty Saviely Tartakower once stated, “Obvious therefore dubious, dubious therefore playable.” The message is a warning against lazy thinking and an implicit suggestion that we should try to falsify our ideas before either playing them automatically or dismissing them.

Tartakower certainly practiced what he preached and was willing to play some dubious looking lines in the opening. In the following encounter he plays his patented 5…Ne4 in the French Defence which has been roundly dismissed as being dubious. But is it really so unplayable?