Where did I go wrong?

Roger de Coverly · Post by **Roger de Coverly** » Sat Feb 18, 2017 7:58 pm

soheil_hooshdaran wrote:What was my mistake in:

Allowing the g pawn to run turned the game into a loss, which makes failing to recover it by perhaps Rg1 a mistake as well. Playing g5 in the first place could also have been wrong. Although winning the exchange for a pawn leaves you material ahead, I doubt there's much if any advantage to White.

soheil_hooshdaran · Post by **soheil_hooshdaran** » Wed Feb 22, 2017 4:34 pm

Where did I go wrong in

[Event "Iran   Amateurs ch (u2000)"]
[Site "Zanjan"]
[Date "2017.02.08"]
[Round "5"]
[White "Hooshdaran,  S"]
[Black "Khodadadi, Sajjad"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1824"]
[BlackElo "1844"]
[Opening "Sicilian: 2...d6 3.g3"]

1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. Nc3 Nc6 5. Bg2 g6 6. d4 cxd4 7. Nxd4 Bg7 8. Nxc6
bxc6 9. e5 dxe5 10. Qxd8+ Kxd8 11. Bxc6 Rb8 12. Be3 Bb7 13. O-O-O+ Kc8 14. Bxb7+
Rxb7 15. f3 Nd7 16. b3 Nb6 17. a4 a6 18. Rd3 Rd8 19. Rxd8+ Kxd8 20. Ne4 Nd7 21.
Ng5 Ke8 22. Ne4 f5 23. Ng5 Bh6 24. Re1 Bxg5 25. Bxg5 Kf7 26. Kd2 (26. Bd2 Ke6
27. Bc3 $16 Kd6 28. h4 h5 29. Kb2 Kd5 30. Ka3 e6 31. Rd1+ (31. Bb4 Kd4 32. Rd1+
Ke3 33. Rd3+ Ke2) 31... Kc6 32. Bb4 Nc5 33. Bxc5 Kxc5 34. Rd8 Rg7 35. c3 e4 36.
fxe4 fxe4 37. Rd4 e3 38. Re4 $16) 26... Ke6 27. Be3 Kd6 28. Bg5 Nc5 29. Be3 Nd7
30. Rb1 Nf6 31. Bg5 e4 32. Bxf6 exf6 33. fxe4 fxe4 34. Ke3 Ke5 35. b4 f5 36. b5
axb5 37. Rxb5+ Rxb5 38. axb5 g5 39. c4 (39. b6 f4+ 40. gxf4+ gxf4+ 41. Ke2 f3+
42. Ke3 Kd6 43. c4 Kc6 44. c5 Kb7 45. h3 h6 46. h4 h5 47. Kf2 $11) 39... f4+ 40.
Ke2 f3+ 41. Ke3 Kd6 42. g4 Kc5 43. h3 h6 44. Kf2 Kb6 1/2-1/2

I had a huge static advantage.Piy that I let it run in the endgame with R+B vs R+N, Queenside majority, healthier pawn structure, and pawns on 2 wings.

Roger de Coverly · Post by **Roger de Coverly** » Wed Feb 22, 2017 4:54 pm

soheil_hooshdaran wrote: I had a huge static advantage.Piy that I let it run in the endgame with R+B vs R+N, Queenside majority, healthier pawn structure, and pawns on 2 wings.

You might want to cross check evaluations with an engine as the position didn't to my eyes say "White is easily winning".

Unless there's an improvement in the King and Pawn ending, you shouldn't trade Rooks.

soheil_hooshdaran · Post by **soheil_hooshdaran** » Thu Feb 23, 2017 7:15 pm

What was my mistake in:

Roger de Coverly · Post by **Roger de Coverly** » Thu Feb 23, 2017 7:24 pm

I'm not convinced about playing .. e5. I suspect an expert in the French would want to play .. Rxf3 and .. Nxd4, possibly after .. Bd7.

Leonard Barden · Post by **Leonard Barden** » Thu Feb 23, 2017 8:00 pm

Some mistake in the game score? As quoted, 28...Rxe5+ wins.

Roger de Coverly · Post by **Roger de Coverly** » Thu Feb 23, 2017 8:06 pm

Leonard Barden wrote: As quoted, 28...Rxe5+ wins.

If the score is correct, then Black lost by missing the win of a piece and getting mated instead (by the same piece!). It's at a move number where a time scramble was plausible.

soheil_hooshdaran · Post by **soheil_hooshdaran** » Tue Mar 28, 2017 7:43 pm

Where did I go wrong in

I was obiously winning bbut it got off my hands....

Roger de Coverly · Post by **Roger de Coverly** » Tue Mar 28, 2017 9:13 pm

soheil_hooshdaran wrote: I was obiously winning bbut it got off my hands....

I wouldn't have said that Black was obviously devoid of counter chances. The lazy way is to ask for engine assessments every few moves and zoom in where it suggests you missed a quick finish or where the assessment changes from "better for white" to "better for black".

The ending with the two exchanges versus a queen side pawn majority may well be fine for Black as the White KIng lacks anywhere safe to shelter.

soheil_hooshdaran · Post by **soheil_hooshdaran** » Wed Mar 29, 2017 3:40 am

People are not allowed to use engine help before Condidate Master level, and I hve not still reached that level

Roger de Coverly · Post by **Roger de Coverly** » Wed Mar 29, 2017 8:37 am

soheil_hooshdaran wrote:People are not allowed to use engine help before Condidate Master level, and I hve not still reached that level

This is pre and post game analysis of course. You are saying you aren't allowed to use a computer for preparation?

soheil_hooshdaran · Post by **soheil_hooshdaran** » Wed Mar 29, 2017 11:45 am

Yes to computer, no to engine!
I am not a CM-level player

I should not use, although allowed officially

soheil_hooshdaran · Post by **soheil_hooshdaran** » Wed Apr 12, 2017 7:59 am

What was my mistake in:
?

Roger de Coverly · Post by **Roger de Coverly** » Wed Apr 12, 2017 8:29 am

soheil_hooshdaran wrote:What was my mistake in:

I suspect you are a bit worse in your starting position.

soheil_hooshdaran · Post by **soheil_hooshdaran** » Wed Apr 12, 2017 9:58 am

Roger de Coverly wrote:
soheil_hooshdaran wrote:What was my mistake in:
I suspect you are a bit worse in your starting position.

Such is life.
At times you re worse, but have to fight on.

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