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Mark Hebden vs Florin Felecan
Capelle la Grande UFRAO (1993), Cappelle-la-Grande FRA, rd 4
Pirc Defense: Classical Variation. Two Knights System (B08)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-18-16
Premium Chessgames Member
  agb2002: White is one pawn down.

The pawn on a2 is indirectly protected by Qd8#.

18.Qxg5 loses to 18... Nd3+ 19.Rxd3 Qxg5+.

The black knight protects c6 and d7. These details suggest 18.Bb5, threatening 19.Bxe5:

A) 18... Qxb5 19.Qd8#.

B) 18... cxb5 19.Qd5

B.1) 19... Rb8 20.Bxe5

B.1.a) 20... Bxe5 21.Qxe5 wins due to the double threat Qh8# and Qxb8.

B.1.b) 20... e6 21.Qc6+ and 22.Bxb8 wins.

B.2) 19... Bb7 20.Qxb7 Rd8 21.Rxd8+

B.2.a) 21... Qxd8 22.Bxe5 Bxe5 23.Qxb5+ and 24.Qxe5 + - [N].

B.2.b) 21... Kxd8 22.Qb8+ Kd7 23.Bxe5 + - [N].

C) 18... Bb7 19.Bxe5

C.1) 19... Bxe5 20.Qd7+ Kf8 21.Qxb7 wins decisive material (21... Rd8 22.Rxd8+ Qxd8 23.Qxc6, etc.).

C.2) 19... Qxb5 20.Qxg5

C.2.a) 20... B(Q)xe5 21.Qg8#.

C.2.b) 20... Kf8 21.Qh6+ and mate in two.

C.2.c) 20... e6 21.Qg8+ Ke7 22.Bb8 and the double threat Qd8# and Qxh8 wins. For example, 22... Qb6 23.Qxh8 Ba6 24.Bd6+ Kd7 25.Bc5+, etc.

C.3) 19... cxb5 20.Qd7+ Kf8 21.Qxb7 wins decisive material.

D) 18... Qc7 19.Bxe5 Bxe5 (19... Qxe5 20.Qd8#) 20.Bxc6+ wins the rook.

E) 18... Qb6 19.Bxe5 cxb5 (19... Bxe5 20.Bxc6+ as in D) 20.Bxh8 wins. For example, 20... f6 21.Qd5 with the double threat Qg8# and Qxa8.

F) 18... Bd7 19.Bxe5 wins decisive material. For example, 19... Rd8 20.Bxh8 bxc6 21.Be5 + - [N vs P].

Nov-18-16  mertangili: What happens after 20..Bxe5?
Nov-18-16
Premium Chessgames Member
  cocker: Fritz 'thinks' 20 ... Bxe5 would have been level.
Nov-18-16  clement41: I'm sure Hebden considered the thematic pawn sac 14 e6, before seemingly favouring the opening of the h-file, perhaps because this gives more scope to the Dragon-like Bg7. His 18 Bb5! is rather hard to see and is beautiful, both freeing f1 to allow a later Rh1, and obstructing the 5th rank to threaten Qxg5/Bxe5 Bxe5 Qxg5, as well as Bxc6+. A hell of a purpose for a single move! Couldn't find it.
Nov-18-16  mertangili: <clement41> I agree to your comments on the merits of 18. Bb5. And yet it seems it only leads to equality after 20..Bxe5 as Bf4 pin threat stops white from achieveing anything significant after 21.Bxc6+. So it seems with correct play the position is equal after all.
Nov-18-16  steinitzfan: That's one wild puzzle. Good one, though. If there's a way for Black to hold the position it's very hard to find.
Nov-18-16
Premium Chessgames Member
  patzer2: <cocker: Fritz 'thinks' 20 ... Bxe5 would have been level.> Fritz is not alone in that assessment. Stockfish 7 gives 20...Bxe5 21. Qxg5 Qxb5 = (0.00 @ 34 depth).

So, for our Thursday puzzle (18. ?), it appears the pretty game continuation 18. Bb5! = only leads to equality after 20...Bxe5 =.

According to the computers, Black has another path to equality with 18...cxb5 19. Qxg4 Nd7 = (0.00 @ 30 depth, Stockfish 7).

One simple point of our Thursday puzzle (18. ?) is to avoid 18. Qxg5?? Nd3+ , because it loses the unprotected White Queen to a discovered check.

Instead of 18. Bb5 =, the computer pick 18. a3 gives White a slight edge after 18. a3 Rb8 19. Re1 f6 20. Bxe5 fxe5 21. Re4 Bf6 22. Rxb4 Rxb4 23. Qxb4 Qxb4 24. axb4 e4 25. Nd2 Bf5 26. c3 = to (0.32 @ 23 depth, Deep Fritz 15).

Nov-18-16  dfcx: My stockfish also suggests 18...Bf5 as equal to 18...Bg4 and 18...cxb5, all rated at +0.00 @30.

Black blundered on 20...Rd8?? (+6.42@28), the correct defense is

20...Bxe5 21.Qxg5 Qxc5 22.Qg8+ Kd7 23.Qxa8 Qb6 (-0.55@28).

Black has a slight edge.

Black's rook is safe after 20...Bxe5. If white tries

21.Bxc6+!? Kf8 22.Bxa8?? (Qxg5?? Bxb2+) Bf4!.

Nov-18-16  PJs Studio: This puzzle was pretty slick. Even for a Friday. (I didn't have the time to calculate all of blacks excellent responses to try and hold his flawed position together either.) Very nice.
Nov-18-16
Premium Chessgames Member
  An Englishman: Good Morning: <SpamIAm>, thanks for the information. Seems like one of the odder origins for an opening name.
Nov-18-16  Rama: Wow. My means of distracting the Q from d8, was to capture the Ne5. Wrong.
Nov-18-16
Premium Chessgames Member
  keypusher: <An Englishman> See here for more re the etymology and history of the Barry Attack.

http://www.kenilworthchessclub.org/...

Nov-18-16
Premium Chessgames Member
  keypusher: A bit more color courtesy of <DomDaniel>.

<Domdaniel: The Barry Attack, a variation of the London System, has no connection with John Barry (or Milner-Barry, or Irish master C. Barry). It's rhyming slang: Barry comes from 'Barry White', which rhymes with sh---, with an evaluation of the line.>

John Finan Barry

Nov-18-16  drollere: way over my head -- and over others, as well, to judge by the recourse to computer analysis.
Nov-18-16  devere: 18.Bb5?! is flashy, but 18.a3! is best.
Nov-18-16  YetAnotherAmateur: Well, I goofed, or at the very least sold myself short.

I started with
18. Bxe5 Bxe5 (Qxe5?? 19. Qe8#)
19. Qxg5 Kf8 or e6 (other moves allow Qg8#)
20. f4 Bxf4+
21. Qxf4

That seems to be a solid advantage, but is not a crushing blow.

Nov-18-16  Nosnibor: What all the commentators on this game should realise that Hebden`s opponent was only just 13 years old and would certainly make a better account of himself now.
Nov-18-16
Premium Chessgames Member
  kevin86: white's pieces chase black's away.
Nov-18-16  CommaVid: @YetAnotherAmateur, I think the line fails at 19. ... Bxb2+, but tbh I don't think many found the real answer (18. a3).
Nov-18-16  Rookiepawn: <dfcx:

Black blundered on 20...Rd8?? (+6.42@28), the correct defense is

20...Bxe5 21.Qxg5 Qxc5 22.Qg8+ Kd7 23.Qxa8 Qb6 (-0.55@28).

Black has a slight edge.

Black's rook is safe after 20...Bxe5. If white tries

21.Bxc6+!? Kf8 22.Bxa8?? (Qxg5?? Bxb2+) Bf4!.>

I was frying my brain looking for the winning line for White, but then it seems not all puzzles are to be considered "play and win" but sometimes "play the best to hold on", right?

After 20... Bxe5 21. Qxg5 becomes forced because of the damn Q pin with Bf4 and it seems there is nothing better for White.

So, is there any clear winning line for White here?

Nov-18-16
Premium Chessgames Member
  YouRang: I saw nothing in particular that I could vaguely call a "solution". I at least noticed that:

- Qd8# would be nice if not for black's Q.

- 18.Qxg5 is bad (18...Nd3+ ).

I resigned to the idea that I'd probably go for <18.a3>, as I think it wins a pawn.


click for larger view

Note that 18...c5 loses (19.Qd5 forks R+N).

Black can try <18...Rb8>, but then <19.axb4 Rxb4 20.c3>


click for larger view

Black moves the rook and then I have 21.b4! kicking the queen, which in turn allows 22.Qxg5. Whoop!

Nov-18-16  steinitzfan: It's possible that the solution to today's puzzle is as follows: (a) see the game idea (Bb5); (b) see that it doesn't work against correct defense; and (c) see that the apparently mundane a3 creates a clear advantage. To be fair, the game continuation makes Black navigate a mine field and may be the best practical chance.
Nov-18-16  5hrsolver: The quick ending is 21...Kf8. 22. Bf6!! f6 23. Rh8+ followed by exchange of major pieces whereby whites extra piece should decide.

I actually found 18. Bb5 but the follow up is madness!!

Nov-19-16  Moszkowski012273: Yeah 18...cxb5 19.Qxg5... should be played.
Nov-19-16  TheBish: After much more thought that the typical Friday puzzle (for me), I finally hit on 18. Bb5! with the idea of winning at least the Exchange. Embarrassingly, I analyzed 18. Qxg5?? for far too long, before I realized it was a howler! (18...Nd3+).
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