The importance of CCT: example #2 - Biel round 9

The previous example featuring a calculation error that could have been avoided using CCT (Checks, Captures and Threats) showed how considering all checks - in that particular case, just one check was possible on the board - could have won the game.

This next example is from round 9 of the Biel super-GM tournament and illustrates the second C (captures) part of the thinking process.  See what happens on move 30, when White (Etienne Bacrot) fails to consider all possible captures by Black.  The Re1 is protected, so evidently GM Bacrot did not bother to calculate its possible capture.  White's multiple hanging pieces, however, means that this was an immediately losing oversight.

[Event "45th GM"] [Site "Biel SUI"] [Date "2012.08.01"] [Round "9"] [White "Bacrot, Etienne"] [Black "Nakamura, Hikaru"] [Result "0-1"] [ECO "D45"] [PlyCount "60"] [EventDate "2012.07.23"] [EventRounds "10"] [EventCountry "SUI"] [EventCategory "20"] 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 dxc4 8. Bxc4 b5 9. Bd3 Bb7 10. e4 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. f4 Bd4 14. e5 Nd5 15. Ne4 Nb4 16. Qb3 Nxd3%2B 17. Qxd3 O-O 18. Nd6 Bc5 19. Be3 Bxd6 20. exd6 Qh4%2B 21. g3 Qh5 22. Rc1 c5 23. Rxc5 Qh3 24. Rg1 Qxh2 25. Rc2 Qh3 26. Rc7 Bf3 27. Kd2 Qe6 28. Bc5 Bg4 29. b3 Bf5 30. Re1 Qxe1%2B 0-1'/>