www.youtube.com/watch?v=nkhPEbFY5BM1d4d52c4e63Nc3Nf64Bg5Be75Nf3h6If black chooses to play without castling before playing h4, white can enter the anti-tartakower variation.
Typically, white would play Bh4 after this move, and theory would continue for much further. However white can play Bx4 instead...6Bxf6Bxf67e3O-O8Rc1c6This transposes the position from QGD structures to semi-slav structures. This might be uncomfortable to a black player inexperienced with the semi-slav.9Bd3Nd710O-Odxc411Bxc4e5!?12h3!?exd413exd4...White ends the opening in an IQP structure. White will look for active piece play (avoiding trades), and look to time d5 correctly.13...Nb614Bb3Bf515Re1Re816Rxe8+Qxe817Qd2Qd718Re1=