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Murray Chandler vs Helgi Olafsson
Hastings (1990/91), Hastings ENG, rd 8
Spanish Game: Closed Variations. Worrall Attack Castling line (C86)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-21-06  EmperorAtahualpa: Unbelievable play by Chandler! Didn't even see the first move of this puzzle, way above my league!
May-21-06  ChessPieceFace: yeah, i didn't get the puzzle at all, but this was a great game to watch. white played really nicely pretty much from the first move all the way through.
May-21-06  goldenbear: I saw 23.g4 Bg6 24.e6 fxe6 25.Ne5. I was pretty sure I was going to click the link and see that that had happened. I think that line is pretty good for White too. Why not 23.Bxf3 24.gxf3 fxe6? What am I missing?
May-21-06
Premium Chessgames Member
  kevin86: A nice finish! White was able to get his punches in before black got his shot.
May-21-06  McCool: Bg6+ was a nice move under black's pressure, but I couldn't find another line that worked.
May-22-06
Premium Chessgames Member
  OBIT: <goldenbear> After 23. g4 Bg6 24. e6 fxe6 25. Ne5 Be8 still looks like a hard game.

I also looked at 23. g4 Bg6 24. e6 fxe6 25. Qe5, which appears to win after 25...Rxf3 26. Rxc7 Qf8 (or 26...Qb8 27. Bxe6+ threatening Rc8+) 27. Bxe6+ Kh8 28. Rc8 Be8 29 Bd7. However, 25...Bd8! seems like the toughest defense. Then if (a) 26. Rxd8 Qxd8 27. Rxc7 Qf6 still looks problematic; (b) 26. Ng5 Bxg5 27. Rxc7 Bf6!; (c) 26. Qxc5 Qb8 27. Rxd8 Qxd8! 28. Qxb6 Qd1+ followed by Qxf3 gives Black a nice counterattack. White may have a win somewhere after 23. g4, but it's not obvious.

May-22-06  durnstein: I also like Rxc7, just because that line is more fun to play.
May-22-06  goldenbear: I didn't trust e6 for a long time. But I see now why it must be played. If Bxf3 exf7+ Kh8 Qxe7 Bxd1 Rxc7 Qd8 Bg5 or Qb8 Bf4
May-28-06
Premium Chessgames Member
  patzer2: The recent puzzle solution 23. e6!! could be classified as either a passed pawn or obstruction (blockade) combination, with several supporting themes (pin, double attack, decoy, deflection (removing the guard), weak back rank, mate threats etc.).

I see it as primarily an obstruction cobmination because 23. e6!! is like dropping a monkey wrench into the machinery of Black's defense. If Black captures the obstructing pawn he's in trouble and if he ignores it he's also busted.

However, the attack must be played with a bit of precision as noted in RV's analysis. One interesting possibility is 23... Bd6 24. g4 Bg6 25. exf7+ Kh8 (25... Bxf7 26. Ng5 Bxc4 27. Qxc4+ ) 26. Ne5 Bc2 (26... Bxe5 27.Qxe5 Ne6 28. Bh6! ) 27. Rxd6 Rxd6 28. Qxc2 .

May-24-15
Premium Chessgames Member
  Penguincw: Boy, I did not see that. Some moves I considered were 23.Rxc7 and 23.Bxf7+, but not this.

Tomorrow's Monday, right?

May-24-15  dfcx: 23.? White to move.
Black's knight is pinned by the rook. I would like to play

23.e6!
A. 23...f6 24.Rd7 wins a piece.
B. 23...fxe6 24.Qe5 Bxf3 25.Rxc7 Qxc7 26.Qxc7 Rb7 27.Bxe6+ Kh8 28.Qd7 (Not Qe5? Bxd1) Rxd7 29.Rxd7 and black will lose one of the bishops

May-24-15  dfcx: I did not see the defense 23...Bf6. Not much credit.
May-24-15  newzild: I spotted 23. e6 pretty quickly and after analysing a few variations was sure it was the puzzle solution. However, after the game continuation of 23...Bf6 I had anticipated 24. Rd7 followed by 25. exf7+, so no point for me
May-24-15  M.Hassan: "Insane"
White to play 23.?
Sides are exactly equal

23.Bf4 Qb8
24.e6
A number of variations can happen from here onwards. I go through one of them:

24.........Qxa7
25.exf7+ Bxf7
26.Qxe7 Bxc4
27.Bxc7 Rb7
28.Rd8 Rb8
29.Rxb8 Rxb8
30.Qd6
I don't see a mate soon
===
I am puzzled by the game line. Why after 23.e6 Bf6? just to clear the way for further advance of the enemy pawn??

May-24-15  Moszkowski012273: Played RxN a move to soon failing to see the response Rb8 winning easily for black. Also missed Bg6+ at the end and went with the (still mating) Ba2+...
May-24-15
Premium Chessgames Member
  morfishine: Identify <d7> & <e7> as the relevant squares, and all sorts of colorful variations ensue

*****

May-24-15
Premium Chessgames Member
  agb2002: The material is identical.

The defenseless black bishops, the possibility of a queen fork on e5 and the control of e6 invite to play 23.e6:

A) 23... fxe6 24.Qe5

A.1) 24... Bxf3 25.Rxc7

A.1.a) 25... Qa8 26.Rxe7 Rf7 27.Rxf7 Kxf7 28.Rd7+ and mate soon (28... Ke8 29.Qxg7).

A.1.b) 25... Qxc7 26.Qxc7 Bxd1 (26... Bd8 27.Rxd8 wins) 27.Qxb6 wins.

A.1.c) 25... Bxd1 27.Rxc8 Rxc8 28.Bxe6+ wins.

A.2) 24... Nb5 25.Rxe7 + - [B vs P].

B) 23... f6 24.Rd7 wins a piece.

C) 23... Nxe6

C.1) 24.Rxe7 Nd4

C.1.a) 25.Qe4 Bxf3 26.gxf3 Qxh3 with the double threat 27... Nxf3+ and 27... Rg6+ seems to lose.

C.1.b) 25.Rxd4 cxd4 looks bad for White. For example, 26.Bf4 Bxf3 27.gxf3 (27.Qxf3 Qxc4 - + [R+P vs B]) 27... Qxh3 and there's no time for 28.Rxf7 because of 28... Rb1+ winning for Black.

C.2) 24.g4

C.2.a) 24... Bxg4 26.hxg4 wins a bishop for two pawns but probably Black does not have enough compensation.

C.2.b) 24... Bg6 26.Rxe7 and it seems that Black cannot trap this rook.

May-24-15  wooden nickel: Nice Sunday puzzle, maybe not too insane seeing the pawn push to e7 since the bishop was hanging and 23... Nxe6 doesn't work, however the tricky part was seeing the back-rank checkmate after 25.Rd8! Rxd8 26.Rxc7!, if Qxc7 then 27.e8=Q+ Rxe8 28.Qxe8# ... a good example on how to use straight forward chess tactics!
May-24-15
Premium Chessgames Member
  patzer2: In trying to understand the tactics in Master games, it is sometimes the "easy move" not played I have difficulty finding.

In the case of today's game with the Sunday puzzle solution 23. e6!!, I missed White's reply to 23...fxe6 (diagram below),


click for larger view

with the "simple" 24. Qe5! (diagam below):


click for larger view

Here, after 24. Qe5! (diagram above), White has a winning double attack (i.e. Queen fork) threatening both the Knight on c7 and the Bishop on h5.

Black can make things a bit complicated with 23...Bxf3 (diagram below)


click for larger view

Here, eschewing the weaker 25. gxf3? Rc6 , White wins with the in-between (a.k.a. intermezzo or zwischenzug) tactical shot 25. Rxc7! (diagram below):


click for larger view

From here (diagram above) play might continue 25...Qxc7 ( 25...Qe8, then 26. Rdd7 Qg6 27. Bg5 ; 25... Bf6, then 26. Qxc5 Qb8 27. gxf3 ) 26. Qxc7 Rb7 27. Bxe6+ (27. Qd7, then Rxd7 28. Bxe6+ Kh8 29. Rxd7 Bf6 30. gxf3 ) 27... Kh8 28. Qd7! Rxd7 29. Rxd7 Bf6 30. gxf3 (+4.51 @ 22 depth, Deep Fritz 14)

May-24-15
Premium Chessgames Member
  patzer2: Things start to go wrong for Black with 15...Nxa5?, allowing 16. Rxa5 Rxb1 17. e5! (+0.87 @ 23 depth, Deep Fritz 14).

Instead, Black can keep it level with 15...Nb4! when play might continue 16. Nc3 c5 17. e5 Ne8 18. Bf4 cxd4 19. Rxd4 Bxf3 20. gxf3 dxe5 21. Bxe5 Nc6 22. Nd5 Bd6 23. Bxd6 Nxd6 24. Nf6+ gxf6 25. Rxd6 Ne5 26. Bxa6 Qf5 27. Kh1 Nxf3 28. Rd3 Ng5 = (+0.05 @ 23 depth, Deep Fritz 14)

May-24-15
Premium Chessgames Member
  An Englishman: Good Morning: Saw the first move and all of the possible responses, but thought that I had missed an even better move. Oh, well. What really impresses me about this game is that Chandler saw the back rank mate possibility in the position after move 22.
May-24-15  BOSTER: < dzechiel : I didn't look beyond the point that the pawn couldn't be captured>. This is too optimistic.
23.e6 Bxf3 , and one black weakness was disappokered.
May-24-15  Marmot PFL: I underestimated 23 e6 forgetting that 24 Qe5 was now a strong threat.
May-24-15
Premium Chessgames Member
  Gilmoy: I knew this was the PotD, but I closed the main page tab before I studied the position. So I had to play it as a <meta-puzzle>: On Which Move Does This Puzzle Begin?

After <23..Bf6> I recognized the hanging-Nc7 theme. Compare with M S Yahya vs D Gormally, 2006, after <27.Rfe1?>


click for larger view

Gormally continued <27..Rxe1+ 28.Rxe1> and won the pawn race. He missed the pretty 27..Qc2:


click for larger view

Solve this kind of position once, and you can just feel from intuition that <26.Rxc7> might be viable because of WBR-entanglement. Don't just examine the moves that smite; <recall the patterns that already did smoted> (we abuse the notation) and quickly run down their checklists.

May-24-15  Robespierre: I'm certain that I'm similar to many of the 'semi-experienced' players who regularly post, i.e., I guessed that White's e6 move would provide real difficulties for Black. And, I'd anticipated Black's response correctly, and decided that e7 was White's next move. But, I that's about as far as I got.
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