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William Lombardy vs Jack Mayer
64th US Open (1963), Chicago, IL USA, rd 3, Aug-13
Sicilian Defense: Kan. Knight Variation (B43)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Jan-30-14
Premium Chessgames Member
  FSR: What kind of problem is this? White just takes the two bishops for a rook and, of course, wins. You might as well ask what White plays after 1.e4 Nf6 2.e5 d6.

The really great thing about the POTD is that it's not just a puzzle. We can always complain about something: it's too easy, it's too hard, it should've been on a different day, the supposed solution is actually inferior, etc.

Jan-30-14  Cheapo by the Dozen: Right, <FSR>. If White misses 31 Qh5 and just plays Qxb5 instead, he's still in great shape, with 2 bishops for the rook, a passed pawn that may soon be protected, and the outpost at e6.
Jan-30-14  morfishine: As others have stated, seems rather straightforward. I had

<28.bxc5 Nxd5 29.exd5 dxc5 30.Be6+ Kf8 31.Qh5> when Black must decide where to put his Queen; I picked 31...Qa7 which is inferior to 31...Qe8

<FSR> As a rule, I don't complain about the POTD since there's almost always an instructive angle, even on Mondays. However, regarding the GOTD, thats a different story :)

BTW: Very nice finish by White

*****

Jan-30-14  paulofx2071: 28)Qh5! direct
Jan-30-14
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

Black threatens 28... Nxd5.

The elimination of the black knight will weaken the light squares around the black castle. Therefore, 28.bxc5 Nxd5 (else drops a piece) 29.exd5:

A) 29... dxc5 30.Be6+ Kf8 (30... Kh7(8) 31.Qh5#) 31.Qh5

A.1) 31... Qa7 32.d6 wins.

A.2) 31... Qb7 32.Qh8+ (or 32.d6) 32... Ke7 33.Qxg7+ Kd6 34.Qxb7 + -.

A.3) 31... Qc7 32.d6 Rxd6 33.Rxd6 + - (33... Qxd6 34.Qf7#).

B) 29... f5 30.Bxf5

B.1) 30... Qh4 31.Be6+ Kf8 (31... Kh7(8) 32.Rd3 followed by Rh3 + -) 32.Qf3+ Qf6 (32... Ke7 33.Qf7#) 33.Qh5 followed by Bg5 + -.

B.2) 30... dxc5 31.Be6+ Kf8 32.Qh5 Qf6 33.Bg5 + -.

Jan-30-14  cocker: According to Fritz, 34 Be3 wasn't the sharpest, but Black's reply meant that it turned out very well.
Jan-30-14  patzer2: While 28. bxc5 is obvious, it does help to set up the interesting 35. Bxc5+! for a neat pursuit (i.e. King Hunt) mate.
Jan-30-14
Premium Chessgames Member
  Penguincw: I thought it would be a rook sacrifice. :p If only I saw the bishop being attacked...
Jan-30-14  Steve.Patzer: I was just wondering what would happen if black's response to 29.exd5 had been Rdb8? The continuation likely would have been similar. 30. Be6 Kf8 31. Qh5 Qe8 32. Qh8+ Ke7 33. Qxg7+ Kd8. What is the best course then?
Jan-30-14  CC0112358: 29......? Would have been a better quiz
Jan-30-14  BOSTER: This POTD does not look like a puzzle.
But white to play 35. at least fits such criterion.


click for larger view

Jan-30-14  BOSTER: <Patriot 29.Rx d5>. Correct is 29. exd5.
Jan-30-14  Patriot: <BOSTER> True, but I think they are both winning if I recall correctly. Houdini did say that if everything is played to my line, it's a draw after 32.Qc2 c4--something I never anticipated because 32...c4 doesn't clearly fall into the category of "forcing moves".
Jan-30-14  LIzzard: I missed it because I was looking for something much deeper. Obvious material trade that leads to a very nice penetration. Kept looking for something more subtle.....
Jan-30-14  Nick46: It Mayer may not 'v been a good move.
Jan-30-14  gofer: Not sure what is so "medium" about this one. What's wrong with the obvious move???

<28 bxc5 ...>

28 ... dxc5?
29 Rxd8+ Rxd8
30 Rxd8+ Qxd8
31 Bf5

<28 ... Nxd5>
<29 exd5 ...>

Black is already losing, so do we need to go any further???

<29 ... dxc5>
<30 Be6+ Kf8>
<31 Qh5 ...>


click for larger view

Black is still losing - except this time at a canter!!! There are only two moves to avoid mate...

31 ... Qf8
32 Qh8+ Ke7
33 Qxg7+ Ke6
34 Qxf6

31 ... Qa7
32 Qh8+ Ke7
33 Qxg7+ Ke6
34 Qxf6

Both positions seem very lost. Do we really need to continue this far or even further...?

~~~

Hmmm, it seems we do!

Jan-30-14
Premium Chessgames Member
  chrisowen: Alive for one clink at fly in the ointment,

efface in try duty I arfaid at enact 25...a5 doesnt cut the mustard it ardent in age looks am glorious again light if sac in safe c5 i bag b4 a slot in the sun knight I net back he c7 fable give accustom in a tour c5 drops off be ok in terms of material eg sink I guess c7 wins d5 lines a delve good rook comes off cough up a c5 black knight in the pocket restores equality for light i gables horse c7 on demand pluck a rook off feld damage in castigate as,

I cuff d5 in be free good ay in h3 checks enough a,

king g8 forces into exile queen eg meflab at h8 tub carries water minimal resistance to stop edge at round about the house g7 ment and in f6 line a family coup bishop epi-centre as on calls effect entry in light boots a giving be flags 25...a5 instead he goof at had to get off be fandangle at faffs 25...g6 keeps the peace intact sanguine the white monarch in evermore couldnt enter a pin aim h5 boot he fish around for percentage in point see king has to flog around until light round up too f6,

and angle g7 in pluck a lemon it was in team us catch 25...a5 (2.15)

Jan-30-14  MaxPain: why resign when you can move the King to A4 then b3 or something like that.
Jan-30-14  WoodPushkin: Greetings

Black was playing fine until <...25 a5?> Here and on it is easy to see Mayer was all opening with insufficient late middle/end game skills. He should have been freeing up the kingside wing instead throwing away queen side.

Still it was the 27th move <...Nc7??> which ensured Blacks demise...ego.?..fatigue...? pressure?

Analysis Calculation Execution
STUDY!

YES love

Jan-30-14  PJs Studio: I got every move of Kombardy's EXCEPT the last one!! Losing a won game (how often have we said that huh?)

I get an A+ for finding all these moves and an F for a final grade. Man I wish I could see more.

Jan-30-14  PJs Studio: Oops! I was to harsh on myself. 37. c4+ wins too.

I guess I can take my B+ and run home to my NiC and Informants.

Jan-30-14  BOSTER: < FSR: The really great thing about the POTD is that it is not just a puzzle>. What else, when most players have never read the games, and most players in the performance are unknown.?
Jan-30-14
Premium Chessgames Member
  Dionysius1: 35. Bxc5 is a lovely move
Jan-30-14
Premium Chessgames Member
  Phony Benoni: If human analysis means anything, Lombardy annotated this game in "Chess Life", March 1964, p.60. Here are a few highlights.

Introduction: <"Black goes against the grain of the Sicilian Defense by seeking early simplifications, when it is the very purpose of the defense to complicate matters in order to play for the win at all cost. When the attempt at simplification fails, Black inherits a completely passive position.">

An excellent comment after <14...Rfd8>:


click for larger view

<"Apparently Black has solved his opening problems; his developemtn is complete. What more could he desire? One problem still remains. The White advantage in space, coupled with the pressure he can apply on the Black d-pawn, make the possibility of obtaining sufficient activity for the black pieces, developed as they may be, quite remote.">

Lombardy questions <15...h6>, suggesting an immediate ...b5 and ...a5. He also prefers 20...Ng5 to <20...Nf8>, reasoning that, since the Black knight is going to e6 anyway, he might was well block the g4-g5 push. To dislodge, the knight, White would have to waste a move with h4. (Though he does not explicitly mention this, I think the problem is that after 21.h4 Ne6 22.g5, White can no longer force his bishop to g5, where it encouraged ...f6 weakening the light squares.)

Lombardy appears to regard <25...a5?> as the losing move, as mentioned by <WoodPushkin>: <"Black should try to defend his white squares: 25...Nf8. The text permits White to nail down the point by presenting him a pawn on the queen side. In the even that his king side attack shoul fail, White can now rely on the queen side advantage.">

In Lombardy's view, then, Black's 27...Nc7 is less a blunder than a "desperate measure", since moving the bishop just loses the b-pawn.

Lombardy's only comment on the first few moves of the POTD: <"29.exd5! The idea is not so much to obtain a passed pawn as to secure an anchor for the king bishop on e6. Firmly in position, that bishop will play a key role in the mating attack."> Most solvers grasped that the move was clearly better than 31.Rxd5.

Lombardy gives <34.Be3!>, though he points out that 34...Qg8 would have allowed Black to struggle on in a piece-down ending. In light of that possibility, 34.Be3 was probably the best "Anti-Human" move. A computer would seize any defensive resource, but a person would be more likely to avoid that particularl one.

Jan-31-14  BOSTER: Thanks< PB.> This is the nice proof that POTDhas something< else.>.
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