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Walter Shawn Browne vs Aleksander Wojtkiewicz
US Open (2004), Ft. Lauderdale, FL USA, rd 3, Aug-09
Sicilian Defense: Scheveningen Variation. English Attack (B80)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-18-15  mel gibson: DR4 64 bit agrees with the moves until
21... Ra6.
That turns the game into a draw.
Jul-18-15
Premium Chessgames Member
  Gregor Samsa Mendel: Today's Saturday puzzle begins at white's 19th move, but as <tpstar> said almost 10 years ago, the really hard moves to find are 21 b3, 22 Qe5, and 23 Qd4. I didn't find any of them.
Jul-18-15
Premium Chessgames Member
  patzer2: My initial look with Fritz shows, instead of <21. Qa6?>, Black survives with 21...Ra6! which fizzles out to equality after 21... Ra6! 22. Qc3 Kb7 23. bxc4 Rd8 24. Rd3 Qc7 25. f4 Rb8 26. Kc1 Ka8 27. c5 Qb7 28. Rd6 Qb1+ 29. Kd2 Ra1 30. Bf2 Qc1+ 31. Ke2 Qf1+ 32. Ke3 Qc1+ 33. Qd2 Ra3+ 34. Rd3 Rxd3+ 35. cxd3 Qxc5+ 36. Kf3 Qb5 37. Qc3 Kb7 38. Qd4 Kc6 39. Kg2 Qb2 40. Qa7 Rb7 41. Qc5+ Kd7 42. f5 Rc7 43. Qf8 Qf6 44. Bg3 Rc6 45. e5 Qe7 46. Qg7 exf5 47. gxf5 Ke8 48. Bf4 Rc3 49. Qh8+ Qf8 50. Qxh7 Rxd3 = (+0.14 @ 20 depth, Deep Fritz 14).

P.S.: Of course that doesn't invalidate 19. Rxd7! as a best move solving our Saturday puzzle, as other moves are inferior.

But it does suggest 19. Rxd7! might be a true positional sacrifice, avoiding weaker alternatives and leading to an unclear and level position with best play.

Jul-18-15  mel gibson: My initial look with Fritz shows, instead of <21. Qa6?>, Black survives with 21...Ra6! which fizzles out to equality after 21... Ra6!

Yes - this game is really a draw.

Jul-18-15
Premium Chessgames Member
  al wazir: What was wrong with 17. b3 or 17. Qc4 ?
Jul-18-15  morfishine: Interesting comments. I had <19.Rd4> doubling rooks with the similar idea of trading down to equal pieces but extra pawns thus winning

*****

Jul-18-15  CommaVid: 19.Rd4 appears to be losing due to Qa6, with the threat of Ra1+ and b3 can't be played sine the Rd4 blocks the path of the queen.
Jul-18-15  Abdel Irada: <al wazir>:

I.

17. b3?!, Be2 ∞

Since the rook is not under attack, the bishop is free to move for counterplay, and White loses his advantage.

II.

17. Qxc4?, Ra1+
18. Kd2, Ne5+
19. Qd4, Nxf3+

(If White varies on move 19, the queen falls anyway.)

Jul-18-15  wooden nickel: <patzer2: ... and 19. Rxd7! with a favorable exchange "sacrifice." Note that if 19...Qxd7??, White gains decisive advantage after 20. Bc5!> Exactly!
Black, trying to mate, doesn't work 19.Rxd7 Qxd7 20.Bc5 Qa4


click for larger view

not even this gives much 19.Rxd7 Kxd7 20.Rd1+ Kc6 21. Qd4 Kb7


click for larger view

The move b3 wins the game, but not from the start i.e. 19.b3?, then 19... Bxb3!, it sure did later!

Jul-18-15
Premium Chessgames Member
  patzer2: <CommaVid: 19.Rd4 appears to be losing due to Qa6> Fritz @ 21 depth agrees, assessing 19. Rd4 Qa6 as clearly decisive for Black:

62: Walter Shawn Browne - Aleksander Wojtkiewicz, US Open Fort Lauderdale USA 2004


click for larger view

Analysis by Deep Fritz 14 x64:

1. (-12.16): 20.b3 Ra1+ 21.Kb2 Qa3+ 22.Kc3 Rxh1 23.Rxd7 Qa1+ 24.Kxc4 Qxg7 25.Ra7 Rxh2 26.Ra8+ Kd7 27.Ra7+ Kc6 28.c3 Rc8 29.Kd3 Rd8+ 30.Bd4 Qg5 31.Ra6+ Kd7 32.Ra7+ Ke8 33.b4 Qd2+

2. (-13.90): 20.Kc1 Ra1+ 21.Kd2 Qa5+ 22.c3 Rxh1 23.Rxc4 Rxh2+ 24.Kd1 Qa1+ 25.Bc1 Qb1 26.Rc8+ Ke7 27.Qg5+ f6 28.Qg7+ Rf7 29.Re8+ Kxe8 30.Qh8+ Ke7

Jul-18-15
Premium Chessgames Member
  pittpanther: Can black play 20....Ke8?
If white plays Bh6 black can play Qc5 or if white tries Bg5 black can get in f6 and I think survive. Thoughts?
Jul-18-15
Premium Chessgames Member
  patzer2: I didn't realize Walter Browne had passed away on June 24, 2015 until I looked at his bio here.

This game is a tribute to a legendary six-time US Chess Champion, who stayed active as a player all the way till the end. He will be missed.

Jul-18-15
Premium Chessgames Member
  patzer2: <pittpanther: Can black play 20....Ke8?> After 20...Ke8?, White turns the tables and wins with 21. b4!

Fritz gives 20...Ke8? 21. b4! Qa6 22. Bc5 (+3.93 @ 23 depth, Deep Fritz 14).

Jul-18-15
Premium Chessgames Member
  Jimfromprovidence: 19 Rxd7 Kxd7 20 Rd1+ Ke8 21 b4 is quite exceptional.


click for larger view

It allows 22 Bc5, prevents 21...Ra5 and opens the diagonal to a1 for the queen, deflating the 21...Qa8 or 21...Qa6 threats.

What is the difference between 20...Kc6 and 20...Kc7? Here is a side puzzle: 19 Rxd7 Kxd7 20 Rd1+ Kc7.


click for larger view

White to play.

Jul-18-15
Premium Chessgames Member
  Penguincw: Hmm. I got the variation with 19.Rxd7 Qxd7 20.Bc5, but if black played 19...Kxd7, I honestly don't know what to followup with.

Is it Monday yet? Honestly, I don't remember having to wait this long for a Monday puzzle again...

Jul-18-15
Premium Chessgames Member
  kevin86: The exchange sac sends black's king into the open.
Jul-18-15
Premium Chessgames Member
  agb2002: White has three pawns for a knight.

Black threatens Qa6.

The knight controls the dark squares around the black king. This invites to play 19.Rxd7:

A) 19... Kxd7 20.Rd1+

A.1) 20... Kc7 21.Qc3 Qa6 (21... Kb8 22.b3 with several threats, Kxa2, Qxc4, Rd6, etc.) 22.b3 stops the mate threat and wins the bishop, with three pawns for the exchange.

A.2) 20... Kc6 21.Qc3 is similar to A.1.

A.3) 20... Ke7 21.Bg5+ Ke8 22.Rd8+ Qxd8 23.Bxd8 + - [Q+3P vs 2R] (23... Kxd8 24.Qxf8+).

A.4) 20... Ke8 21.Bh6 Ke7 22.Bg5+ transposes to A.3.

B) 19... Qxd7 20.Bc5 Qa4 (20... Kd8 21.Qxf8+ Kc7 22.Qe7 + - [3P]) 21.Qxf8+ Kd7 22.Rd1+ Bd5 (else 23.Qd6+ and mate soon) 23.Ba3 wins decisive material.

C) 19... Qa6 20.Rd8+ Kxd8 (20... Ke7 21.Bg5#) 21.Qxf8+

C.1) 21... Kc7 22.Qxf7+ and White seems to have perpetual if Black doesn't allow the trade of queens.

C.2) 21... Kd7 22.Rd1+

C.2.a) 22... Kc6 23.Rd6+ wins.

C.2.b) 22... Kc7 23.Qd8+ Kb7 (23... Kc6 24.Rd6+) 24.Rd7+ Kc6 25.Rd6+ wins.

C.2.c) 22... Bd5 23.Rxd5+ exd5 24.Qxf7+ and it seems that White will trade queens eventually with a won ending.

D) 19... Qa8 20.Rd8+ Qxd8 (20... Kxd8 21.Qxf8+ followed by 22.Qxa8 + - [3P]) 21.Bc5 looks similar to B.

E) 19... Ra1+ 20.Kxa1 Qa8+ 21.Ra7 wins.

Jul-18-15  Pedro Fernandez: A puzzle or a complex ending? In all case this problem lacks of a unique solution. Okay 19.Rxd7 is logic since the knight is protecting the rook on f8 and also because 19...Qxd7 is not possible so that 20.Rd1+, but I didn't see 20...Kc6! which is a good move for black, even though I also see the obvious move 21.b3. After that I did stop my analysis and used my Stockfish in order to know if there was a quick solution, but for my surprise the move 21...Qa6? is a blunder! (well, now the rook f8 is unprotected but most importantly is that the three white major pieces become quite active, and with the black king at the center of the board it will be seriously threatened). So whether white should win this game or not by a precise defense for black it is unknown for me.
Jul-18-15  OutOfSync: Thank you, chrisowen, for that inimitable analysis. You have a gift for understanding and expressing the fundamental, core elements of any given position, in a manner that conveys absolute, crystalline clarity and comprehension for the rest of us. I salute you!
Jul-18-15  Abdel Irada: <OutOfSync>: The really fascinating bit is that this is actually true, although one does have to solve a bit of a word search puzzle to see how. :-D

Jul-18-15  Marmot PFL: Didn't find 21 b3 as I was looking for mate instead of a winning ending, but none of my queen moves worked.
Jul-19-15
Premium Chessgames Member
  patzer2: <Jimfromprovidence> In your puzzle position after 19 Rxd7 Kxd7 20 Rd1+ Kc7, White wins with 21. Rd4! when black has nothing better than 21...Kb7 22. Rxc4 Qxc4 23. Qxf8 (+2.51 @ 23 depth, Deep Fritz 14).
Jul-20-15
Premium Chessgames Member
  al wazir: <Abdel Irada: 17. Qxc4 Ra1+ 18. Kd2 Ne5+> 19. Ke2 Rxd1 (if 19...Nxc4 20. Rxd8+ Kxd8 21. Rxa1, and white is up two ♙s; or 19...Qxd1+ 20. Rxd1 Rxd1 21. Qb5+ Rd7 22. Qxe5, and white has ♕+♗+♙+♙ vs. ♖+♖+♘) 20. Qb5+ Rd7 (20...Qd7 21. Qb8+ Ke7 22. Qb4+, and black has nothing better than a draw by repetition) 21. Qxe5. White has two ♙s for the exchange.

But I think you're right about 17. b3.

Jul-20-15  Abdel Irada: <al wazir>: I credit you with a good point. I was too quick to dismiss 19. Ke2, which appears to offer roughly equal chances after 19. ...Rxd1 20. Qb5+, Rd7 21. Qxe5, o-o.

However, it would appear that White preferred to seek more than rough equality, so pragmatically *that* may be the answer to your question.

Nov-28-15  PJs Studio: GM Browne bringing the big stick! This is one bold game by Walter. RIP brother.
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