Originally posted by PacMan
I am black again, another dodgy sacrifice by me on move 10. It didn't lead to a win this time, but I did end up with the better endgame position, I just didn't have the ability to convert it. I guess I'm very lucky that my opponents are human and not computer.
Does anybody disagree with my comments? I'm looking for advice on how to study my games.
[pgn] ...[text shortened]... to exploit it. I chickened out and allowed a repetition.} 25. Ke2 Re8+ 26. Kd2 1/2-1/2
I disagree with your assessments of white's seventh and eighth moves. 7. c3 is fine, it leaves your g7 bishop biting on granite and generally helps to stabilize the centre, the knight can go to d2. Personally I'd have castled instead of playing 8. e3-e4 but I don't think his move is as bad as you seemed to think. 8. ... e5 is clearly the right thing to do. He is probably wrong to play 9. dxe5 and should just move the bishop to g5, pinning the knight.
Your sacrifice wasn't sound, but your self-criticism is too strong. In a recent game (Game 10669692
) I went for the Greek gift sacrifice, only I'd failed to spot a possible defence and so lost. I saw the defence shortly after committing myself to the sacrifice. If you look at the books after 8. Bxh7 Kxh7 9. Ng5 they point out that the better defence is often to move the king to g6 rather than g8. So I'd spent more time on looking at lines after 9. ... Kg6. I don't think this completely explains my missing the move, but my underestimation of 9. ... Kg8 created this cognitive bias in favour of a duff move.