Where did I go wrong?

Technical questions regarding Openings, Middlegames, Endings etc.
Roger de Coverly
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Re: Where did I go wrong?

Postby Roger de Coverly » Sun Jul 24, 2016 1:10 am

soheil_hooshdaran wrote:Doesn't the move slightly weaken the K-side?


Certainly. but if the Bishop can be regrouped to g7, no more so than in the family of Kings Fianchetto defences. It also blocks the white square attack on h7 from the Bishop on c2 and a Queen on d3 or h5.

soheil_hooshdaran
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Re: Where did I go wrong?

Postby soheil_hooshdaran » Sun Jul 24, 2016 7:04 am

What was my mistake in:
[Event "Fars championship (men) 2016"]
[Site "Shiraz"]
[Date "23.7.2016"]
[Round "6"]
[White "Hooshdaran, Soheil"]
[Black "Zandi, Farshad"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "11795"]
[BlackElo "`1892"]
[Opening "Sicilian: Pelikan, Bird variation"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3
Be6 9. Nd5 Bxd5 10. exd5 Qa5+ 11. Qd2 Qxd2+ 12. Bxd2 Nxd5 13. g3 O-O-O 14. Bg2
Ndb4 15. O-O d5 16. c3 Nd3 17. b4 a5 18. c4 Ncxb4 19. cxd5 Kb8 20. Nc4 Rc8 21.
Nxa5 Bc5 22. Be3 b6 23. Nc4 Rhd8 24. Nxb6 Bxe3 25. fxe3 Rc7 26. a3 Nc2 27. Rab1
Ka7 28. Rfd1 Nc5 29. d6 Rb7 30. Bxb7 Nxb7 31. Rd3 Ka6 32. d7 1-0

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IM Jack Rudd
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Location: Bideford

Re: Where did I go wrong?

Postby IM Jack Rudd » Sun Jul 24, 2016 9:45 am

Erm, 9.Nd5, losing a pawn. You don't need us to tell us that, surely.

Roger de Coverly
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Re: Where did I go wrong?

Postby Roger de Coverly » Sun Jul 24, 2016 10:14 am

IM Jack Rudd wrote:Erm, 9.Nd5, losing a pawn. You don't need us to tell us that, surely.


Checking some games where this has been played, 10 Bxf6 looks necessary. Losing a pawn for "nothing" also seems OK with 10. exd5 Qa5 and now 11. c3 Qxd5 12. Bxf6 Qxd1 13. Rxd1 gxf6. Engines like Nc2 or Nc4 and claim the position to be about equal.

9. Nc4 is the main line in terms of popularity.

Barry Sandercock
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Re: Where did I go wrong?

Postby Barry Sandercock » Sun Jul 24, 2016 10:23 am

Does a small mistake really matter when you win the game anyway ? To play the best move every time, you would have to play like a powerful engine ( or Magnus.)

soheil_hooshdaran
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Joined: Tue Nov 05, 2013 5:24 pm

Re: Where did I go wrong?

Postby soheil_hooshdaran » Mon Jul 25, 2016 3:01 am

Barry Sandercock wrote:Does a small mistake really matter when you win the game anyway ?

Yes, mistakes add up.

soheil_hooshdaran
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Joined: Tue Nov 05, 2013 5:24 pm

Re: Where did I go wrong?

Postby soheil_hooshdaran » Mon Jul 25, 2016 3:07 am

IM Jack Rudd wrote:Erm, 9.Nd5, losing a pawn. You don't need us to tell us that, surely.

I just wanted to resign in the game after 9...Qa5+.
But I could've played 10.Bxf6 Qxf6 11.Qxd5, when his structure would be weak without compensation in the form of two Bishops, right?
As the game continued , my two Bishops turned very strong I think.

soheil_hooshdaran
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Joined: Tue Nov 05, 2013 5:24 pm

Re: Where did I go wrong?

Postby soheil_hooshdaran » Wed Jul 27, 2016 2:09 pm

Hi.
Could I win?
[Event "Fars-ch 2016"]
[Site "Shiraz"]
[Date "26.07.2016"]
[Round "9 (Final)"]
[White "Hooshdaran,Soheil"]
[Black "Tahmasebi,Hamidreza"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1795"]
[BlackElo "1925"]
[Opening "Sicilian defence"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Qc7 5. O-O Nf6 6. Nc3 a6 7. Re1 d6 8. d4
cxd4 9. Nxd4 Be7 10. Nxc6 bxc6 11. Bg5 h6 12. Be3 Rb8 13. b3 e5 14. h3 O-O 15.
f4 Rd8 16. fxe5 dxe5 17. Qf3 Bb4 18. Bf2 Qa5 19. Red1 Bxh3 20. Bxh3 Bxc3 21.
Rxd8+ Rxd8 22. Rd1 Rxd1+ 23. Qxd1 Nxe4 24. Qd7 g6 25. Be6 fxe6 1-0
I got only the 4thh prize and a few rating points.....
So sorry, but both men and women champions are now in their teens (while many strong players didn't participate)

soheil_hooshdaran
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Re: Where did I go wrong?

Postby soheil_hooshdaran » Fri Aug 19, 2016 8:46 pm

Where was Black's mistake?
[Event "Iranian Super League 2016"]
[Site "?"]
[Date "2016.08.02"]
[Round "1.7"]
[White "Mosadeghpour, Masoud"]
[Black "Makvandi, Navid"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2437"]
[BlackElo "2126"]
[PlyCount "47"]
[EventDate "2016.??.??"]
[TimeControl "6000+930"]
[WhiteClock "1:22:56"]
[BlackClock "0:02:29"]

1. e4 c5 2. d4 cxd4 3. c3 g6 4. Nf3 Bg7 5. cxd4 d5 6. e5 Nc6 7. Bb5 f6 8. O-O
Nh6 9. exf6 exf6 10. Re1+ Kf7 11. Nc3 Bg4 12. h3 Bxf3 13. Qxf3 Nxd4 14. Qd3
Nhf5 15. Nxd5 Rc8 16. Bc4 b5 17. Bb3 Nxb3 18. axb3 Qd7 19. g4 Rc5 20. Nxf6 Qxd3
21. Rxa7+ Ne7 22. Raxe7+ Kf8 23. Nd7+ Kg8 24. Re8+ 1-0

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IM Jack Rudd
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Location: Bideford

Re: Where did I go wrong?

Postby IM Jack Rudd » Sun Aug 21, 2016 10:07 pm

7...f6 looks dubious; it looks safer to go ...Nh6 first, castle, and only then attack the centre with ...f6.

soheil_hooshdaran
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Joined: Tue Nov 05, 2013 5:24 pm

Re: Where did I go wrong?

Postby soheil_hooshdaran » Wed Jan 04, 2017 11:19 am

Where did I go wrong in this game?
[Event "Fars League 1395"]
[Site "Shiraz"]
[Date "30.12.2016"]
[Round "3"]
[White "Hooshdaran, Soheil"]
[Black "Namdarigharghani, Parsa"]
[Result "1/2-1/2"]
[WhiteElo "1826"]
[BlackElo "1755"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5
Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. O-O-O e6 14. Rhe1
O-O-O 15. Qe2 Bd6 16. Ne5 {[%xcpdao l]} 16... Rhf8 17. Nc4 Bf4 18. Kb1 Bxd2 19.
Rxd2 c5 20. Red1 Nd5 21. Ne4 Kb8 22. dxc5 Nxc5 23. Nxc5 Qxc5 24. Ne3 Rde8 25.
Nxd5 exd5 26. Qg4 Rg8 27. Qf4+ Qc7 28. Qxc7+ Kxc7 29. Rxd5 Re7 30. Rc5+ Kb8 31.
b4 Rc8 32. Rxc8+ Kxc8 33. Rd2 Re4 34. c3 Rh4 35. Rd5 Rh2 36. Rf5 Rxg2 37. Rxf7
Rg5 38. Kc2 Rxh5 39. Rxg7 Rh2 40. Rh7 Rxf2+ 41. Kb3 Rh2 42. a4 h5 43. Kc4 h4 44.
Kd5 h3 45. a5 Rh1 46. a6 bxa6 47. Kc6 Kd8 48. Kb7 h2 49. Kxa7 a5 50. b5 Rb1 51.
Rxh2 Rxb5 52. Ka6 Rc5 53. Rc2 a4 54. Kb6 Rc8 55. c4 Rb8+ 56. Kc6 Rc8+ 57. Kb5
Ra8 58. Kb4 a3 59. Ra2 Kc7 1/2-1/2

Roger de Coverly
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Joined: Tue Apr 15, 2008 2:51 pm

Re: Where did I go wrong?

Postby Roger de Coverly » Wed Jan 04, 2017 11:39 am

soheil_hooshdaran wrote:Where did I go wrong in this game?


From the typical turgid position of a main line Caro, you won a pawn and went into a Rook ending which turned out to be drawn in practice. Looking for improvements in the Rook ending would seem the logical study point. I think I would have played more cautiously with 31. b3 rather than 31. b4 and looked to park a Rook on f5 with the threefold purpose of defending both f2 and h5 and attacking f7.After that, then slowly try to use the queen-side pawn majority keeping the opposing rook or rooks as passive as possible.

LawrenceCooper
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Joined: Tue Dec 20, 2011 8:13 am

Re: Where did I go wrong?

Postby LawrenceCooper » Wed Jan 04, 2017 1:13 pm

soheil_hooshdaran wrote:Where did I go wrong in this game?
[Event "Fars League 1395"]
[Site "Shiraz"]
[Date "30.12.2016"]
[Round "3"]
[White "Hooshdaran, Soheil"]
[Black "Namdarigharghani, Parsa"]
[Result "1/2-1/2"]
[WhiteElo "1826"]
[BlackElo "1755"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5
Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. O-O-O e6 14. Rhe1
O-O-O 15. Qe2 Bd6 16. Ne5 {[%xcpdao l]} 16... Rhf8 17. Nc4 Bf4 18. Kb1 Bxd2 19.
Rxd2 c5 20. Red1 Nd5 21. Ne4 Kb8 22. dxc5 Nxc5 23. Nxc5 Qxc5 24. Ne3 Rde8 25.
Nxd5 exd5 26. Qg4 Rg8 27. Qf4+ Qc7 28. Qxc7+ Kxc7 29. Rxd5 Re7 30. Rc5+ Kb8 31.
b4 Rc8 32. Rxc8+ Kxc8 33. Rd2 Re4 34. c3 Rh4 35. Rd5 Rh2 36. Rf5 Rxg2 37. Rxf7
Rg5 38. Kc2 Rxh5 39. Rxg7 Rh2 40. Rh7 Rxf2+ 41. Kb3 Rh2 42. a4 h5 43. Kc4 h4 44.
Kd5 h3 45. a5 Rh1 46. a6 bxa6 47. Kc6 Kd8 48. Kb7 h2 49. Kxa7 a5 50. b5 Rb1 51.
Rxh2 Rxb5 52. Ka6 Rc5 53. Rc2 a4 54. Kb6 Rc8 55. c4 Rb8+ 56. Kc6 Rc8+ 57. Kb5
Ra8 58. Kb4 a3 59. Ra2 Kc7 1/2-1/2


40 Rh7 dropping the f pawn and to a lesser extent swapping the active rook on d5 for the passive one on h8.

Roger de Coverly
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Re: Where did I go wrong?

Postby Roger de Coverly » Wed Jan 04, 2017 1:37 pm

Rf7 looks good. You then slide the King across to e3 which frees up the Rook on f7.

Giving away a pawn with check is never good. For that matter R+3 v R+2 all on the same side with the defending King in touch with the queening square is apt to be drawish because pawn exchanges can take you to a drawn R+P v R position. So trading the f pawn for the h pawn isn't marvellous, even if you can.

[FEN "[FEN "2k5/pp4R1/7p/8/1P6/2P5/P1K2P1r/8 w - - 1 40"]"] [SetUp "1"] *

soheil_hooshdaran
Posts: 1453
Joined: Tue Nov 05, 2013 5:24 pm

Re: Where did I go wrong?

Postby soheil_hooshdaran » Wed Jan 04, 2017 3:44 pm

I missed that he is taking the f2-pawn with check...............:(


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