chessgames.com
Members · Prefs · Laboratory · Collections · Openings · Endgames · Sacrifices · History · Search Kibitzing · Kibitzer's Café · Chessforums · Tournament Index · Players · Kibitzing
Daniel Stellwagen vs Maxime Vachier-Lagrave
Gyorgy Marx VI (2008), Paks HUN, rd 9, Aug-03
Sicilian Defense: Najdorf Variation (B96)  ·  0-1

ANALYSIS [x]

FEN COPIED

explore this opening
find similar games 2 more Stellwagen/Vachier-Lagrave games
PGN: download | view | print Help: general | java-troubleshooting

TIP: You can change the color of the light and dark squares by registering a free account then visiting your preferences page. Or, you can change it with the "SETTINGS" link in the lower right.

PGN Viewer:  What is this?
For help with this chess viewer, please see the Olga Chess Viewer Quickstart Guide.
PREMIUM MEMBERS CAN REQUEST COMPUTER ANALYSIS [more info]

Kibitzer's Corner
Aug-03-08  luzhin: 39.Be8(??) comes under the heading of brave but wrong.
Aug-04-08  achieve: Quite a tricky position, but 39...Be8 seems perfect!

However 41 Qxh4?? gives the Queen away -- it is trapped.

Instead 41 Bxf7 would have won "easily".

Stellwagen made the 1st time control and then plays a howler on move 41 - but it must have been very tense towards the TC and maybe he relaxed a bit and just missed Rh8 (?)

Pity though, Daniel played majestic upto move 41, and must have thought it was without danger to capture the h-pawn, passer AND quick to promote, hard to stop.

Aug-04-08  JonathanJ: i think that the first time control is between move 40 and move 41, so stellwagen was probably in deep time trouble when he played the blunder.
Aug-04-08  dumbgai: <JonathanJ> To my knowledge, White made time control when he played 40. Kc2. Therefore he could have and should have taken his time on his 41st move, although it's completely understandable that he just relaxed and carelessly played a normal-looking move.

<achieve> It's clear that 41. Bxf7 is a better move than Qxh4, but I don't see how White "easily" wins. The Black h-pawn is threatening to queen and the knight and bishop can't really help the White queen stop it.

Aug-04-08  percyblakeney: Maybe Vachier-Lagrave made the first mistake with 34. ... Qxh2. If Rd8 instead it looks like this after 35. Qd5 Qg1+ 36. Bd1 Qg7:


click for larger view

Black is threatening Qf8 and engines mean that white can't get a better result than a perpetual (for example 37. Qc5 Qg5+ and avoiding Kc2 Qg2+ Kc1 Qg5+ by moving the king to the b-file will lose to Qd2).

Aug-04-08  luzhin: Actually, achieve is right. After 39.Be8 Qg1+ 40.Kc2 Kg7 41.Bxf7, if Black plays 41...Rh8 then White wins with the pretty 42.Ne8+.
Aug-05-08  achieve: <dumdgai>: < It's clear that 41. Bxf7 is a better move than Qxh4, but I don't see how White "easily" wins. The Black h-pawn is threatening to queen and the knight and bishop can't really help the White queen stop it.> You're right, it isn't that easy, that's why I put the word in quotation marks.... The clear winning line needs to be calculated several moves ahead, and as <luzhin> showed, <Ne8> is the KEY move in the deciding maneuvre.

Here goes:

39. Ba4-e8 Qh2-g1+
40. Kc1-c2 Kg8-g7
41. Be8xf7 Qg1-g2+
42. Kc2-b3 Qg2-g5 <more checks are useless - Black would like to trade Queens under good conditions, IE promoting the H-pawn -- but White still has control >

43. Nd6-e8+


click for larger view

43 ... Rf8xe8
44. Bf7xe8 <Black is almost in ZUGZWANG here>

44 ... Qg5-h6
45. Qh5-f7+ Kg7-h8
46. Qf7-e7 h4-h3 <This Queen maneuvre threatening of course the mate on G8 -- yet the H-pawn could become dangerous>

47. Be8-f7 Kh8-h7 <forced> 48. Bf7-g6+ Kh7-h8
49. Qe7xf6+


click for larger view

... and to avoid mate Black would have to exchange Queens, after which there is time for the Bishop to h5-f3, to prevent the H-pawn from queening.

===

All in all I think that the H-pawn was indeed a threat in Stellwagen's eyes -- but the Ne8/Qf7-e7 combo should be in his reach, after the time control, I think.

NOTE: Create an account today to post replies and access other powerful features which are available only to registered users. Becoming a member is free, anonymous, and takes less than 1 minute! If you already have a username, then simply login login under your username now to join the discussion.

Please observe our posting guidelines:

  1. No obscene, racist, sexist, or profane language.
  2. No spamming, advertising, duplicate, or gibberish posts.
  3. No vitriolic or systematic personal attacks against other members.
  4. Nothing in violation of United States law.
  5. No cyberstalking or malicious posting of negative or private information (doxing/doxxing) of members.
  6. No trolling.
  7. The use of "sock puppet" accounts to circumvent disciplinary action taken by moderators, create a false impression of consensus or support, or stage conversations, is prohibited.

Please try to maintain a semblance of civility at all times.

Blow the Whistle

See something that violates our rules? Blow the whistle and inform a moderator.


NOTE: Please keep all discussion on-topic. This forum is for this specific game only. To discuss chess or this site in general, visit the Kibitzer's Café.

Messages posted by Chessgames members do not necessarily represent the views of Chessgames.com, its employees, or sponsors.
All moderator actions taken are ultimately at the sole discretion of the administration.

This game is type: CLASSICAL. Please report incorrect or missing information by submitting a correction slip to help us improve the quality of our content.

Home | About | Login | Logout | F.A.Q. | Profile | Preferences | Premium Membership | Kibitzer's Café | Biographer's Bistro | New Kibitzing | Chessforums | Tournament Index | Player Directory | Notable Games | World Chess Championships | Opening Explorer | Guess the Move | Game Collections | ChessBookie Game | Chessgames Challenge | Store | Privacy Notice | Contact Us

Copyright 2001-2021, Chessgames Services LLC