The Nakamura Trap

The name is my own invention and it refers to the “trap” that arises after the following moves: 1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 0-0 5.d4, with alternative move-orders being possible, for example 1.d4 Nf6 2.Nf3 g6 3.b3 Bg7 4.e3 0-0 5.Bb2:

This system against the King’s Indian has been used frequently by Nakamura in online chess, hence my name for the tra…