1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... c7c5  5. c4d5  5... f6d5 The Semi-Tarrasch  Defense is a common guest now at top tournaments. Despite the obvious  danger of Black being checkmated on the kingside, the computer-backed  defenders often employ it, relying on the clarity of their computer  analysis. 6. e2e4  6... d5c3  7. b2c3  7... c5d4  8. c3d4  8... f8b4  9. c1d2  9... b4d2  10. d1d2  10... e8g8  11. f1c4  11... b8d7  12. e1g1 