chessgames.com
Members · Prefs · Laboratory · Collections · Openings · Endgames · Sacrifices · History · Search Kibitzing · Kibitzer's Café · Chessforums · Tournament Index · Players · Kibitzing
Lucas van Foreest vs Jinshi Bai
Groningen Open (2016), Groningen NED, rd 5, Dec-26
Sicilian Defense: Old Sicilian. General (B30)  ·  0-1

ANALYSIS [x]

FEN COPIED

explore this opening
find similar games 736 more games of L van Foreest
PGN: download | view | print Help: general | java-troubleshooting

TIP: You can get computer analysis by clicking the "ENGINE" button below the game.

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
May-15-17
Premium Chessgames Member
  Phony Benoni: Looking at the checks, we see that 39. ..Rd3+ is foiled by a bishop interposition. So how about eliminating the bishop?

<39. .Rxf2 40.Rxf3 Rd3+ 41.Nf3 Rxf3+ 42.Rxf3 Bxf3>, and Black's a piece up with no worries.

May-15-17  lost in space: Aha, it is Monday again!

39...Rxf2 (eliminating the most important defender) 40. Rxf2 Rd3+ 41. Nf3 (or Rf3) Rxf3+ 42. Rxf3 (or Nxf3) Bxf3 wqith a won endgame (a piece up)

May-15-17  Strelets: I spent longer than I care to admit trying to find a forced win before settling for a won ending with an extra bishop. The point? Don't waste too much time looking for something that isn't there.
May-15-17  Walter Glattke: 39.-Rd3+? 40.Bg3! not 40.Be3.
May-15-17  Nf3em: Too easy: 39... Rxf2 40.Rxf2 Rd3+ and after exchanges in f3-square, Black will be a piece-up and win the game eventually.
May-15-17  ChessHigherCat: I wouldn't say it was tweasy for a Monday. I hesitated before choosing Rxf2 because I thought "Damn, Rd3+ doesn't lead to mate now!" but in these puzzles winning a piece is enough, much like modern diplomacy, where winning the peace is just as important as winning the war.
May-15-17  agb2002: Black has a rook for a knight and a pawn.

The white king lacks mobility and 39... Rd3+ is met with 40.Bg3. Therefore, 40... Rxf2 41.Rxf2 Rd3+ 42.Nf3 (42.Rf3 Bxf3 is even worse) 42... Rxf3+ 43.Rxf3 Rxf3+ wins a piece.

May-15-17
Premium Chessgames Member
  An Englishman: Good Evening: Really nice illustration of how to sustain a pawn-down initiative after the exchange of Queens. The combination at the end was just a nice little flourish.
May-15-17  AlicesKnight: All the pieces bar one (for Black) can be exchanged off by ... Rxf2 followed by ...Rd3+, thanks to the self-blocking around the White K.
May-15-17  Iwer Sonsch: 39...Rxf2 40.Rxf2 Rd3+ wins material. No mate this time.
May-15-17  saturn2: Black is up an exchange but down a pawn.
39 ..RxB and white has only one piece to interpose after 40..Rd3+
May-15-17  patzer2: Here's my look at today's Monday puzzle (32...?) and game with the chessgames.com opening explorer, Deep Fritz 15, Stockfish 8 and others:

<1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Bf5 6. dxc5 !?> I suppose this is playable and with perfect play might be good for equality, but in seeking an advantage for White I prefer the popular move 6. Be3 to = (+0.45 @ 27 depth, Houdini 5.01 x 64) as in White's win in M Vachier-Lagrave vs D Daulyte, 2017)

<6... Qxd1+ 7. Kxd1 O-O-O+ 8. Ke1> Of the five games in the chessgames.com opening explorer after the forcing moves 6...Qxd1+ 7. Kxd1 0-0-0+ 8. Ke1, Black won four and drew one.

If these practical results are any guide, 6. dxc5!? should perhaps be avoided in serious play -- even though 6. dxc5!? does look like a fun try for skittles and blitz.

<8...Nf6 9. b4> Here the computers recommend 9. Bb5 e5 10. Be3 Nd5 = (0.00 @ 34 depth, Komodo 10) as in Black's win in D Spence vs M Sebag, 2014.

<9... Nd5 10. Bd2 e5 11. Na3?!> This turns the game in Black's favor after 11...a5 (-0.37 @ 33 depth, Stockfish 8.)

Instead, White can hold it level with 11. Be2 = (-0.14 @ 31 depth, Komodo 10.3)

<11... a5 12. Nh4 Be6 13. Nc2 e4 14. g3 Be7 15. Rc1?> This loses because it allows 15...Ne5 (-1.88 @ 27 depth, Komdo 10.3)

Instead, Black can still fight on with hope for a draw after 15. bxa5 Bxc5 (-0.74 @ 28 depth, Stockfish 8)

<15... Ne5 16. Be2 Bh3> (-2.25 @ 31 depth, Stockfish 8) White's position is hopelessly lost.

<17. Ne3 Nxe3 18. Bxe3 g5> This works out fine for Black, but even stronger here is 18... axb4 19. Rb1 g5 (-2.43 @ 30 depth, Stockfish 080417)

<19. f4 Nd3+ 20. Bxd3 Rxd3 21. Bd4 Rd8 22. fxg5 Bxg5 23. Rb1 axb4 24. Rxb4 Bg4 25. Rb1 Bd2+ 26. Kf2 e3+ 27. Kg2 e2 28. Bf2 Be6 29. Rhg1 Bd5+ 30. Kh3 Be6+ 31. Kg2 Bxc3 32. Rbc1 Bd5+ 33. Kh3 Be6+ 34. Kg2 Bd5+ 35. Kh3 Rd1 36. g4 Bc6 37. Rxc3 Rxg1 38. Re3 Rf1 39. Rxe2 Rxf2! 0-1> This solves the Monday May 15, 2017 chessgames.com puzzle. White resigns in lieu of 40. Rxf2 Rd3+ 41. Nf3 Rxf3+ 42. Kg2 Rxf2+ 43. Kxf2 Kd7 (-6.66 @ 23 depth, Deep Fritz 15)

May-15-17  patzer2: Appears to me 39...Rxf2! utilizes at least three tactical themes:

1) Removing the guard by capturing the Bishop, in order to avoid 39...Rd3+ 40. Bg3 with a much more difficult winning continuation for Black.

2) Forcing a piece to f3 (decoy tactic) after 39...Rxf2 40. Rxf2 Rd3+ .

3) Overloading of pieces by forcing a two on one capture sequence after 39...Rxf2 40. Rxf2 Rd3+ 41. Nf3 Rxf3+ .

May-15-17  leRevenant: <Nf3em: Too easy:> Too easy? Do you know what day of the week this is?
May-15-17  Cheapo by the Dozen: Too loose for a mate, but White is sufficiently netted to lose material.
May-15-17  morfishine: <39...Rxf2> followed by <40...Rd3+> wins

*****

May-15-17  et1: not Too Easy but Easy. Too Easy is the usual Queen sac. Spent a lot of time checking for something better before settling for the obvious R takes B
May-15-17  Iwer Sonsch: <patzer2> White's knight moves to the rim were simply dim. By 11.Na3!? and 12.Nh4!?, White went from an almost equal -0.14 (depth 33) down to -0.73 (depth 27).

Even though Black's advantage would have already been decisive after 15.Rc1? Ne5! in a grandmaster-level game, Black's edge drastically increased after 19.f4? Nd3+! 20.Bxd3 Rxd3 (-4.22 @depth 23).

Instead, White could have put up more resistance with 19.Bd4! Bf6 20.f4 gxf4! (-1.84 @depth 26).

In the game line, Black could have manifested his advantage by playing 24...Rd2!


click for larger view

For example, 25.Ra4 Rc2 26.Ra8+ Kc7 27.Rxd8 Kxd8 28.Rg1 Rxa2 (-6.25 @depth 24).

May-15-17  mel gibson: I was looking for a checkmate but it boils down to a winning end game. The computer says:

39. Rxe2 Rxf2 (39. .. Rxf2 (♖f1xf2 ♖e2xf2 ♖d8-d3+ ♘h4-f3 ♗c6xf3 ♔h3-g3 ♗f3-d5+ ♔g3-h4 ♔c8-c7 ♔h4-g5 ♔c7-c6 h2-h4 ♖d3-d4 h4-h5 ♗d5-e6 ♖f2-g2 ♔c6xc5 a2-a3 f7-f6+ ♔g5xf6 ♖d4xg4 ♖g2-e2 ♗e6-d5 ♖e2-e8 ♖g4-g3 ♖e8-c8+ ♔c5-d4 ♖c8-h8 ♗d5-g8 ♔f6-f5 b7-b5) +3.50/23 99)

blacks score +3.50 depth 23

May-15-17
Premium Chessgames Member
  gawain: Unusual for a Monday: no checkmate, and not even the outright win of a major piece. But a nice little combination, all the same.
May-15-17  patzer2: <Iwer Sonsch> Thanks for the excellent analysis of 19. f4?! and 24...Rd2!

As you observe, positions such as those after Black's 18th move here -- which look easy to win with GM technique or computer analysis -- are not so easy to win over the board.

As Lasker said "The hardest game to win is a won game."

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.
  8. Do not degrade Chessgames or any of it's staff/volunteers.

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 2001-2025, Chessgames Services LLC