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Murray Chandler vs Andrew Jonathan Mestel
Hastings (1980/81), Hastings ENG, rd 9, Jan-07
Benoni Defense: King's Indian System (A56)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jun-09-17
Premium Chessgames Member
  wtpy: Didnt see all the way to 51.g6 but almost and think I would have found it. Interesting game.
Jun-09-17  bcokugras: 39. Kf1?
Jun-09-17  mqhelisi: Nice and easy
Jun-09-17
Premium Chessgames Member
  morfishine: I had <40.g6> figuring 40...Rxe6 41.g7+ Kg8 42.gxf8=Q+ Kxf8 43.dxe6 is winning for White

and if 40...hxg6 then 41.Qxg6 also looks winning

*****

Jun-09-17  SpamIAm: <bcokugras> Perhaps he(Chandler)was short of time and wanted to gain a move. Loved Mestel's sense of humor for playing 56...e1(B). I would've played 56...e1(N)for a spite check or two.
Jun-09-17  yadasampati: Pure intuition, 3 seconds: Ra8
Jun-09-17  Walter Glattke: 39.g6 Qh4+, the reason for 39.Kf1,
perhaps.
Jun-09-17  Cybe: Black should 39... Re8 (not Re7?).
Jun-09-17  Walter Glattke: Cybe: Balance beam, falling: 40.Ra8 Rxe6
41.Rxd8+ Re8 42.Rxe8# / 40.-Qxa8 41.Qf6+ Rg7 42.Qxg7# Falling from Hastings invitation for Mestel, possibly. Re7 is better.
Jun-09-17  Walter Glattke: No, 41.-Kg8! - is my mistake.
Jun-09-17
Premium Chessgames Member
  malt: I got 40.Ra8 R:e6 41.R:d8 R6d8 42.R:d8 R:d8
Jun-09-17  scholes: G6 was also promising. I went for g6
Jun-09-17  mel gibson: The problem for black was that white pawn on h6 blocking the black King into the corner.

The computer says:

40. Ra8 (40. Ra8 (♖a1-a8 ♖e7xe6 ♖a8xd8 ♖e6-e8 ♖d8xd6 ♖e8-b8 ♖d6-c6 ♖b8-d8 d5-d6 ♔h8-g8 b2-b4 ♖d8-d7 b4-b5 ♖f8-d8 ♖g2-c2 ♖d7xd6 ♖c6xd6 ♖d8xd6 ♖c2-c8+ ♔g8-f7 ♖c8-c7+ ♔f7-g8 ♖c7-g7+ ♔g8-h8 ♖g7-e7 ♔h8-g8 ♔f1-e2 ♖d6-g6 ♖e7xe5) +4.12/22 191)

score for white +4.22 depth 22

Jun-09-17  Walter Glattke: After 39.-Re8! I get draw all over, while the metal brain still found 41.-R6e8 42.Rxd6, better than 42.Rxe8 Rxe8. But the score after 39.-Rf8-e8! should be nearly zero for the computers, it's draw, I mean.
Jun-09-17
Premium Chessgames Member
  Fusilli: Sense of humor in defeat. What a nice trait to have!
Jun-09-17
Premium Chessgames Member
  Fusilli: <radtop: Pretty easy Thursday.>

I disagree. It would for sure be way too much for a Wednesday.

<yadasampati: Pure intuition, 3 seconds: Ra8>

Oh really? Well, I saw Ra8 in TWO seconds. So, there. Of course, that means nothing without follow up analysis, which is the point of these puzzles.

Jun-09-17
Premium Chessgames Member
  malt: I put 41...R6d8, instead of 41..R6e8 42.R:e8 R:e8
Jun-09-17  Patriot: <morf> That's exactly what I had!
Jun-09-17
Premium Chessgames Member
  morfishine: <Patriot> Good to see you! I think this wins too
Jun-09-17
Premium Chessgames Member
  agb2002: White is one pawn up.

Black threatens Rxe6.

The first idea that comes to mind is 40.Ra8:

A) 40... Qxa8 41.Qxe7 Qa1+ (41... Rg8 42.Qf6+ Rg7 43.Qxg7#) 42.Kf7 Qxb2+ 43.Kb1 and Black is defenseless against Qxf8# and Qg7#.

B) 40... Rxe6 41.Rxd8

B.1) 41... Rxd8 42.dxe6 with the better ending. For example, 42... Re8 43.Rc2 Kg8 (43... Rxe6 44.Rc8+ Re8 45.Rxe8#) 44.Rc7 Rxe6 45.Rc8+ Kf7 46.Rh8 Kg6 47.Rg8+ Kf5 48.b4 d5 49.g6 Rxg6 (49... hxg6 50.h7 wins) 50.Rxg6 Kxg6 51.b5 wins.

B.2) 41... Ree8 42.Rxd6 + - [2P].

B.3) 41... Rfe8 42.dxe6 is similar to B.1 with an extra tempo.

-----

Another option is 40.g6:

A) 40... Rxe6 41.g7+ Kg8 42.gxf8=Q+ Kxf8 43.dxe6

A.1) 43... Qf6 44.Rg7 Qxh6 (44... Qxe6 45.Ra8+ wins) 45.Rf7+ and mate in two.

A.2) 43... Qe7 44.Ra8+ wins.

A.3) 43... Qe8 44.Rg7 Qb5+ 45.Kg1 Qb6+ 46.Kh1 Qc6 and the threat Qxf3+ causes problems.

A.4) 43... d5 44.Ra7, threatening 45.Rf7+ Ke8 46.Rg8#, wins.

B) 40... hxg6 41.Qxg6 Qe8 42.Qg7+ Rxg7 43.hxg7+ Kg8 44.gxf8=Q+ Kxf8 unclear.

-----

I think I'd play 40.Ra8.

Jun-09-17
Premium Chessgames Member
  Marmot PFL: Promoting to a knight would have lasted a few moves longer.
Jun-09-17  Whitehat1963: What's best play if 56...e1=N+?
Jun-09-17
Premium Chessgames Member
  PawnSac: < Whitehat1963: What's best play if 56...e1=N+? >

When I saw black promoted to a bishop, I thought.. "well now, that was stupid. A knight would have been much preferable."

It still doesn't prevent mate, and black can only stop one of the pawns, but it still was better than the game move.

Jun-09-17
Premium Chessgames Member
  morfishine: <Fusilli> Lol, good to see you as always!

*****

Jun-09-17
Premium Chessgames Member
  offramp: I got it all up to the underpromotion.
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