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FromMessage
Posted by death_by_pawns
ability-tw.com

7/27/2002
15:00:56
Subject: Help with analysis

Message:
I need help analyzing this one.

;Title: Yahoo! Chess Game
;White: chessesq (1427)
;Black: death_by_pawns (1427)
;Date: Fri Jul 26 18:15:11 PDT 2002

1. d2-d4 g8-f6
2. c2-c4 b7-b5
3. c4xb5 a7-a6
4. b1-c3 e7-e6
5. a2-a3 f8-e7
6. c1-f4 o-o
7. e2-e4 c8-b7
8. b5xa6 b8xa6
9. d4-d5 a6-c5
10. d5xe6 f7xe6
11. e4-e5 f6-e4
12. c3xe4 b7xe4
13. b2-b4 f8xf4
14. b4xc5 e7xc5
15. a3-a4 f4xf2
16. g1-h3 d8-f8
17. d1xd7 c5-b4+
18. e1-d1 a8-d8

At this point they left, but someone else came in.

19. h3xf2 d8xd7+
20. f2-d3 e4xd3
21. f1xd3 d7xd3+
22. d1-c1 f8-f4+
23. c1-c2 f4-d2+
24. c2-b1 d3-b3++

I already know some of the major mistakes like 15. a4, but are they any others I should know?

Thanks in advance.

And this one.

Mormel12 VS Death by pawns

1. d4 Nf6
2. Nc3 e6
3. Bg5 Bb4
4. a3 Bxc3+
5. bxc3 O-O
6. Nf3 Nc6
7. e3 d5
8. Bd3 h6
9. Bh4 Re8
10. O-O Bd7
11. Bg3 Nh5
12. Rb1 Rb8
13. c4 Nxg3
14. fxg3 dxc4
15. Bxc4 Na5
16. Bb5 Bxb5
17. Rxb5 Nc4
18. a4 Nd6
19. Rh5 f5
20. Ne5 Ne4
21. Qa1 Rf8
22. c4 c6
23. a5 Qe8
24. Rh3 Rf6
25. g4 fxg4
26. Nxg4 Rf7
27. Qb1 Ng5
28. Rg3 Rf8
29. Ne5 Rd8
30. Nf3 Nxf3+
31. Rgxf3 Qe7
32. c5 Kh8
33. Rf3xf8+ Rxf8
34. Rxf8+ Qxf8
35. Qxb7


Posted by atrifix
ability-tw.com

7/27/2002
22:57:00
Analysis

Message:
Not a whole lot to say about the first game, unless you want a dissertation on your opening choice...2... b5?! is considered an inferior variation of the Benko Gambit. The ...Be7 is not the most active method of placement, when it could obtain more activity on g7, but you made no major mistakes throughout the game. White's 9. d5? is a big mistake which justifies Black's earlier play by giving black time to get piece activity...White should just play something like 9. Bd3 or 9. e5 Nd5 10. Nxd5, after which he'd just be a pawn up in an otherwise relatively equal position. 13. b4? is another mistake, and 15. a4? ends it. IMO your play was accurate, but your choice of opening was unsound.

The opening of the second game is theoretically interesting, but not a particularly aggressive system, and Black equalized already by the 4th move. White could have been more aggressive with a different placement of the QB or QN, or with 4. e4.

6... Nc6 seems wrong, because the pawn might go to c5 in some variations, but there's nothing objectively wrong with it, it could go to c4 in some variations--although experienced players usually avoid moves like this.

9... Re8? is a mistake that doesn't do anything. White's reply of 10. 0-0? lacks any sting, but black follows up with the mysterious 10... Bd7?, and White again plays 11. Bg3?.

Let's look at what's going on here. 9... Re8 is only good to support ...e5, but White could have prevented ...e5 by 10. Ne5!. The knight cannot be taken, because of 10... Nxe5?? 11. dxe5 g5 12. exf6 gxh4?? 12. Qg4+! and mate in one. Likewise, 10... g5 11. Bg3 Nxe5 12. Bxe5 gives White a dominant position. 13. Qf3 is immediately threatened and White can continue f4 or h4 as he chooses, causing big problems for Black.

White plays 10. 0-0?, which lacks any sting. Black could have now turned the tables due to White's inaccuracy and played 10... e5!, equalizing immediately--the only point of the development Nc6 and Re8. But instead Black played the incomprehensible 10... Bd7?, which doesn't contest the critical e5 square and makes Black's position look rather silly. d7 isn't even a good square for the bishop--it should go to b7 after b6. White could again have obtained a positional bind with 11. Ne5!, but let it slip away with 11. Bg3.

12... Rb8 would not be necessary if the bishop were still on c8, when Black could continue b6 and Bb7. On move 16, White (still with a slight plus) makes a positional error (16. Bb5?!) for no apparent reason, and trades off his active dark-squared bishop for black's relatively lifeless one, as well as giving Black the c4 square. After 16. Bd3 White would still have an edge.

I don't get 18. a4?? Nd6??. After 18... Nxe3 Black simply wins an exchange for no compensation.

19... f5? seems too weakening to stand up to a direct attack. White could have obtained the advantage after 21. g4!, since 21... fxg4 loses outright to 22. Nf7, and against 21... Nf6 White has either the straightforward 22. Rf3 or the enterprising 22. gxf5!?. Either should be sufficient for a big advantage that probably could be converted into a win. 21. Qa1? makes no sense to me.

21... Rf8? also doesn't make sense to me, in fact, it allows White another chance at a winning combination (since it deprives the e-pawn of protection). 21... c5 was the desired move, striking back in the center.

22. c4? misses the point entirely. White is wasting his time dallying on the queenside, when he could be making a point to end the game immediately by attacking Black's king. 22. Qa2! takes advantage of the fact that the Rf8 is gone (and even justifies 21. Qa1?), since, well, Black simply cannot guard both the e6-pawn and the f5-pawn, which is now under attack. 22... Ng5 fails to 23. h4.

22... c6?! again fails to make the compelling move 22... c5, but at least it no longer loses since White blocked his own line of attack with the c4 pawn.
23. a5?! just worsens White's position by exposing the a-pawn to attack by the Black Queen, and again Black should just respond 23... c5. 23... Qe8 misses the point. Black is failing to generate any counterplay at all, even though it could be achieved just by advancing the c-pawn.

25. g4! White finally makes this advance at long last, although it could have come as early as move 21.

26... Rf7? and 27. Qb1? is a mutual mistake; White should have played 27. Rxf7 Qxf7 28. Rxh6! with another clear win of a pawn.

27... Ng5 appears best, since 27... Nd2? is extremely dubious: 28. Nxh6+! gxh6 29. Qg6+ and White gets good compensation.

28... Rf8? 29. Ne5? is another mutual mistake. After either 29. h4 N moves 30. Nxh6+ or 29. Nxh6+ gxh6 30. h4 White exploits the g-file pin. Black should worry about neutralizing White's advantage with 29... Rxf1+ 30. Qxf1 Qf8!, after which 31. h4 fails 31... Qxf1+ 32. Kxf1 Ne4, and similar with 31. Qxf8+. White would have the better endgame after 31. Qxf8+ due to Black's weak e-pawn, but Black would have chances to draw.

Again, 29... Rd8? 30. Nf3? mutual blunder. 30. Rxf8+ Qxf8 31. h4 embarasses Black's Knight, as it must retreat to h7 because of 31... Nf7 32. Rf3, but then 32. Qxb7 (threatening mate) should be sufficient to win.

32. c5? is a weak move strategically because it gives up control of the center (especially d5) and exposes White's c-pawn to attack by the black Queen. Much more to the point would have been 32. Qe4. Black should have taken advantage of this by 32... Rxf3 33. Rxf3 e5, followed by liquidating into a level ending.

After 32... Kh8? it's all over because the king gives up vital protection of the f8 rook.


Posted by death_by_pawns
ability-tw.com

7/28/2002
19:33:30
Thanks!

Message:
Thanks, that cleared up a lot for me!
———
Chess: Anand takes his time — Sometimes it can be worth sacrificing a piece – if you play the long game. Anand-Wang Hao, Wijk aan Zee 2011. White has sacrificed a piece for two pawns. How should he continue? RB: I would never have the nerve to make the kind of positional sacrifice Anand has made here, no matter how unimportant the game. The only way I can think of to try to make something of the impressive central pawn phalanx is to push the pawn – 1 d5. Wait a minute! Doesn't that regain the piece at once? If Black tries to retreat the bishop with 1...Bc8 the d-pawn will cause mayhem: 2 d6 and Black will be forced to take with the rook (or 2...Qb8 3 dxe7) ...