Annotated Chess Game 11620697

1. d4 d5 2. Ng1f3 Ng8f6 3. e3 e6 4. Bf1d3 c5 5. b3 Nb8c6 6. a3 Bf8e7 7. Bc1b2 O-O 8. O-O b6

Standard Colle up to here.

9. Nb1d2 Bc8b7 10. Nf3e5 Nc6xe5 11. dxe5 Nf6e4 12. f3 Ne4xd2 13. Qd1xd2 Ra8c8 14. c4

? Shouldn't do this before the Q is backed up. Otherwise, the file will open.

14... dxc4 15. bxc4 f5 16. exf6 Be7xf6 17. Bb2c3 Qd8e7 18. Ra1d1 Rc8d8 19. Qd2c2 Bf6xc3 20. Qc2xc3 Qe7g5 21. Bd3e2 e5 22. Rd1d5

? Hoping to pin the R to the K?

22... Rd8xd5 23. cxd5 Bb7xd5

Down a pawn. That's all it takes.