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James P Jackson vs David Okike
London Chess Classic Open (2014), London ENG, rd 7, Dec-13
Sicilian Defense: Classical Variation. General (B56)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
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Mar-08-16  cocker: 36 a4 looks a bit rash.
Mar-08-16
Premium Chessgames Member
  Oxspawn: Black needs the white bishop to go away. In the absense of the white bishop, black does not need the queen. The rook and the bishop can handle it. Therefore

36. Qxd1
and I would imagine that white surrenders.

Mar-08-16
Premium Chessgames Member
  Oxspawn: James P Jackson is a great name. Sounds like it should give you some advantage in the opening especially if you wear a stetson and gun belt. But he's British, I think and he certainly took a cereal kiking here (weak pun sponsored by Wikipedia).
Mar-08-16  schachfuchs: @gofer: I got 39...Ra2+ and 40...Ra3+
but that took me a minute instead of seconds for today's puzzle ;-)
Mar-08-16
Premium Chessgames Member
  whiteshark: Todays goal: <attentiveness> - black to move! ;)

Solution is quite simple...

Mar-08-16  WorstPlayerEver: At live food flicks centre vote again am route won land job civil queen's am fake pin as hi hints well centre vote again am i b1 live hints call i flag as cover akin an glad drive rove drawns float mad as an i d1 dip an a4 ever am good beef as a4 hup home hop low ave learn as now etc ect, I suppose.
Mar-08-16  mrknightly: <Cheapo by the Dozen> Great and appropriate quote. I laughed out loud!
Mar-08-16  zb2cr: White's Bishop prevents Black from mating via ... Rxa4#. Solution: Remove the Bishop. 36. ... Qxd1. Now the Queen as well is threatening the White Pawn at a4. White has nothing better than 37. Rxd1, Rxa4#.
Mar-08-16
Premium Chessgames Member
  PawnSac: < cocker: 36 a4 looks a bit rash. >

yea pretty dopey move. As Cybe pointed out, a3 is more sensible.

Mar-08-16
Premium Chessgames Member
  gawain: <Cheapo by the Dozen>: "Who will rid me of this troublesome bishop?"

Good one. Thinking of the film version of Becket, may we say (after the sac) that the black queen has gone for a Burton?

Mar-08-16
Premium Chessgames Member
  patzer2: White's decisive mistake was 36. a4?, allowing the winning deflection (a.k.a. removing the guard) tactic 36...Qxd1 (mate-in-6 or less, Deep Fritz 15).

Instead, 36. a3 = (0.00 @ 21 depth, Deep Fritz 15) holds it level.

Mar-08-16  notyetagm: <Cheapo by the Dozen: "Who will rid me of this troublesome bishop?">

Her Majesty: "I will, your Grace."

Mar-08-16  notyetagm: <patzer2: White's decisive mistake was <<<36. a4?>>>, allowing the winning deflection (a.k.a. removing the guard) tactic 36...Qxd1 (mate-in-6 or less, Deep Fritz 15).

Instead, <<<36. a3 = (0.00 @ 21 depth, Deep Fritz 15)>>> holds it level.>

Wow, that is *really* an atrocious move to make.

White has to meet the mate threat against a2 but why would he play the *extremely* weakening 36 a2-a4?? when the solid 36 a2-a3!= also meets the threat and clearly provides more <KING SAFETY>?

Mar-08-16
Premium Chessgames Member
  kevin86: Chop off the bishop and black forces a quick mate.
Mar-08-16
Premium Chessgames Member
  Once: It's intriguing how often we get a sniper bishop helping with these mating attacks. The black Be4 does a great job of covering the back door to the white king's bunker.

36. a4 was a bit of a lulu. A finger-slip perhaps? Or was white afraid of 36. a3 b4?

Mar-08-16  YetAnotherAmateur: Black would like to play Rxa4#. What's stopping that? The Bd1. So get rid of it, with 36. ... Qxd1.

White misplayed the defense somewhat here, not that it really matters. Slightly better than the game line would be:

37. Qxe4 Qxc1+
38. Ka2 fxe4

That's just a slower death than the game line, though, because now white is down Q+R and the king is on the run. As for where white started to go wrong, I'm going to suspect 25. c4, without preparing it first with Rc1.

Mar-08-16
Premium Chessgames Member
  gawain: <Gofer> I'm trying to take up your challenge. I see 39... Rb7+ 40 Kc3 Rc7+ 41 Kc2? Qb5+ 42 K moves Ra7# but I don't see how Black is to mate if W plays 41 Kc4.

Oh, I see, <Schachfuchs> found it.

39...Ra2+ 40 Kc3 Ra3+ 41 Kb4 Rb3+ 42 Ka4 Qb5# Is that it?

Mar-08-16  Jack Kerouac: <WorstPlayerEver> Any relation to Chris Owen?
Or should I say: Brain make road hedge light flick pony trick.
Mar-08-16  starry2013: Looking at this the white bishop is the problem. So I assume if I take it with my queen it opens up the checkmate with the rook coming down.
Mar-08-16  starry2013: If I did that I can't see what white does except exchange bishops and lose its queen for a rook on a4.
Mar-08-16  Shamot: <chrisowen> Am fly angle cutoff aid dead try deem and a4 i deal i flight am cad dipoff aid rev do cred it edict have point life it low ave learn again elixir am a3 vim again level catch eg bad arrive 36.a4 an mate at 6 vent an cable wire vines core bus am i dutiful again learn over aids i va va voom an bet afraid 36.a4 adder addendum and bind band dapple go build end den don find as i remember plans mind over am bless it feint ramble a7 give again elephant at each and i lip erm and e4 it edict have cover am i b1 bovver and vims light as cant escape it edge vet ramble give glean alma alives no mores fluffs am glad frugal er tile ground.
Mar-08-16  BobbyLev: I got it! I often see the outline of the solution or the first move, but not the full sequence of forced moves, and I don't usually get the full and exact answer. This was easy enough for me. 1.5 stars. Peace, BobbyLev
Mar-08-16
Premium Chessgames Member
  ajk68: Thanks <patzer2>! I was trying to figure out why 36. a3 wouldn't have worked.

Does anybody have an idea why white played a4?

Mar-08-16  WorstPlayerEver: @JackKerouac

Some oddness and compulsivity, I suppose :)

Mar-08-16  Bubo bubo: Black removes the defending bishop with 36...Qxd1, and White has no sufficient defense against the threat of Rxa4#: 37.b3 Qxb3 or 37.Qxe4 Qxc1+.
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