Theory
The theory of Owen's Defence is less developed than that of other openings. This makes it attractive to some players, since their opponents will often be ill-prepared for it and hence forced to think for themselves. GM Christian Bauer observes:
To be honest, I don't think Black can equalise as quickly with 1...b6 as he sometimes does in standard openings, and he may suffer against a well-prepared opponent. Then again, the well-prepared opponent is rare for such marginal variations as 1...b6, and in any case, with reasonable play I'm sure White can't get more than a slight advantage from the opening – a risk everyone is running as Black, aren't they?
According to MCO-15, after 2.d4 Bb7 White gets the advantage with either:
- 3. Bd3 e6 4. Nf3 c5 5. c3 Nf6 (5...cxd4 6.cxd4 Bb4+ 7.Nc3 Nf6 8.Qe2 d5 9.e5 Ne4 10.0-0!? Bxc3 11.bxc3 Nxc3 12.Qe3 Nc6 13.Bb2 Ne4 14.Ba3 and White had a large advantage in Adams–Vanderwaeren, Moscow Olympiad 1994) 6. Nbd2 Nc6 7. a3! d5 8. e5 Nfd7 9. b4 Be7 10. 0-0 0-0 11. Re1 "with a clear plus", or
- 3. Nc3 e6 4. Nf3 Bb4 5. Bd3 Nf6 6. Bg5 h6 7. Bxf6 Bxc3+ 8. bxc3 Qxf6 9. 0-0 d6 10. Nd2 e5 11. f4 Qe7 12. Qg4, as in David–Bauer, France 2005.
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