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Geza Maroczy vs George J Beihoff
Manhattan CC-ch (1926), New York, NY USA
Colle System (D05)  ·  0-1



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Mar-25-14  morfishine: <25...Qe3+> forces mate

White's mate threat at <g7> simplified this problem


Mar-25-14  gofer: <25 ... Qe3+>

26 Rxe3 Rc1+
27 Re1 Rxe1+
28 Nf1 Rxf1#

<26 Kh8 Qxe1+>
<27 Rg1 Nf2+>
<28 Kg2 Qxe5>
<29 dxe5 Rc2>


Just like <Phony Benoni> and <Cheapo by the Dozen> I selected the inferior <28 ... Qxe5> which is completely unnecessary. Ba6 is protecting Rc8 from Qe6+, so there is no threat of a draw by perpetual check.

It is obvious, in hindsight, that <28 ... Qxd2> preparing the discovered check and winning a second piece is far better... ...pity!

Mar-25-14  zb2cr: Nice little back-ranker. 25. ... Qe3+ does it.
Premium Chessgames Member
  Penguincw: I had 25...Qc1 is mind. It's probably winning as well, but it's not really as forceful.
Mar-25-14  Pedro Fernandez: Another variation: 25...Qe3+ 26.Kh1 Qxe1+ 27.Nf1 Qxf1+ 28.Rg1 Nf2 mate.
Mar-25-14  RedShield: <Be off with you!>
Premium Chessgames Member
  gawain: I celebrated too soon, seeing the back rank mate 25...Qc1 26 Rxc1 Rxc1# . Would I ever have been surprised when my opponent uncorked 26 Qxg7# instead!
Mar-25-14  goodevans: 25.Qe5? Oops!

I think white's fine until this blunder. 25.Nf3 is a better way to defend d4 and it's not clear that black would have sufficient compensation for his exchange sac since white has as many attacking chances.

<Penguincw: I had 25...Qc1 is mind. It's probably winning as well...>

25...Qc1 26.Qxg7++

Mar-25-14  alexrawlings: Hmm... as a 1800 rated player I'm a bit embarassed to admit that I didn't see this. I spent my time trying to work out if I could get away with <25.. Nxd2> and never even got a sense that a bank rank mate was on.

Still a great learning puzzle and hopefully my chess brain will remember this puzzle if this ever happens to me in a game!

Mar-25-14  johnlspouge: < <alexrawlings> wrote: Hmm... as a 1800 rated player I'm a bit embarassed to admit that I didn't see this. I spent my time trying to work out if I could get away with <25.. Nxd2> and never even got a sense that a bank rank mate was on. >

After examining material balance, I examine King safety, which determines the continuation here.

The White Kg1 has two squares g1 and h1 available to it, which suggests the back-rank mate. White can play 26.Qe5-e6+ or 26.Qxg7#, so a combination requires forceful play by Black. Thus, the only check 25...Qe3+ is interesting.

Another useful rule is to examine every forcing move, which also draws attention to 25...Qe3+.

Premium Chessgames Member
  kevin86: Black will mate on the back row whether or not white takes the queen. Black must have made a checking move, as his own king is threatened with mate.
Mar-25-14  whiteshark: <25...Qe3+!!>, and that's it. Pretty tough for a Monday.
Mar-25-14  Mating Net: The only win for George J Beihoff but he mates an original GM, not too shabby.
Mar-25-14  RedShield: Didn't someone already use the pun <Maroczy Blind>?
Mar-25-14  sfm: <Mating Net: The only win for George J Beihoff but he mates an original GM, not too shabby.> Absolutely not. Against those opponents I'd have been proud of a zero!
Premium Chessgames Member
  Once: Hmm ... more interesting than it looks. The obvious Tuesday win is 25...Qe3+ taking advantage of the weakened white back rank. The Rg2 is in fancy dress as a fat pawn. Together with black's paratrooper knight on e4, we have all the signs for a back rank mate.

But it's not quite so simple. What happens if White wriggles like a good un? After 25...Qe3+ 26. Kh1 Qxe1+ 27. Rg1 Nf2+ 28. Kg2, we get to here:

click for larger view

In human mode I spent quite a bit of time pondering this position. No immediate mate is apparent, so what do we do? We ought to notice that we even though we snaffled a rook in the combination, we are not a rook ahead. We started the puzzle the exchange down, so winning a rook really means winning a minor piece. We've won material but not cornered the blighter yet.

Being a pragmatic soul, I thought of exchanging down to a win on wood. 28...Qxe5 29. dxe5, then extricate the even more deeply infiltrated paratrooper knight, neutralise white's passer and grind out a 60 move win.

And I have to admit that said variation taxed what remains of my grey cells as I worried that the knight might be cornered and lost or the white pawn would race through to Westminster Abbey.

But m'learned colleagues <agb2002> and <gofer> have spotted the better continuation. After 28...Qxd2!

click for larger view

Black threatens a devastating discovered check and white doesn't have a perp or mating attack of his own. Fritzie subsequently says that this is mate in 11, where my grubby queen swap is in the ball park of -6.

Quite a bit more involved than your normal choosday.

Mar-25-14  BOSTER: This is the pos. white to play 13.

click for larger view

Black pos., where most the pieces are on the queen's side looks very suspicious. After 13.dxc5 if Bxc5 we have <almost> the possibility to sacrifice couple bishops. 14.b4-to deflect the bishop from diagonal g1-h7 Bxb4.

Premium Chessgames Member
  LIFE Master AJ: Geza Maroczy - George J Beihoff
Manhattan Chess Club Championship
New York City, USA, 1926.

A quick look at this game.

1.d4 d5; 2.Nf3 e6; 3.e3 Nf6; 4.Bd3 Bd6; 5.0-0 0-0;

So far, White is playing the super-safe Colle Opening. [ See MCO-15, page # 506.]

click for larger view

Meanwhile ... Black adopts the "copy-cat approach."
(I also have had trouble with coming up with an effective plan when my opponent simply mimicked all of my moves.)

6.b3 b6; 7.Bb2 Bb7; 8.Nbd2 Nbd7;

So far, so good.
(Total symmetry, which is somewhat rare in master-level chess today.)

click for larger view

Both Fritz and Houdini rate the current position as about equal, and it is difficult to even try to dispute such a logical assessment.

Now White buries a Knight into the outpost on e5.

9.Ne5 c5; (Hmmm.)

Black breaks on the Q-side.

Since I first began studying chess, I know that such a break is both correct, normal and good chess.

[RR 9...Ne4; - Fritz 13. ]

10.f4 Rc8; 11.Qf3! Qc7;

Both side have developed in a relatively logical manner, now the players need to decide on a course of action for the middlegame.

12.Nxd7!?, (Illogical?)

White swaps off the monster Knight on the key e5-square.

To me, this is not the best way to handle this position. What is funny is that even the engines do not show a simple or easy path for White ...

[ The iron giant likes: RR 12.Qe2!? Ne4; 13.Nxe4 dxe4; 14.Bb5 Nxe5; 15.fxe5 Be7; 16.c4, (more space) with <maybe> a small edge for White. ]

Now White's P.O.D. is revealed, Maroczy is hoping to make inroads on the King-side.

12...Nxd7; 13.Qh3 f5;

White has done all that he could (thus far) and reaches a (temp?) stopping point.

14.g4!?, (Dubious?)

White lashes out ...

This is probably too violent and compromises White's King-side too much to be one-hundred percent correct.

[ 14.Nf3 h6; ∞ (unclr) ]

14...cxd4; 15.Bxd4 e5?!;

Black goes for a "break-loose" type of idea. (Looks OK?)

click for larger view

Ferocious Fritz brands this as just plain bad ...

[ Much better was: >/= 15...Nc5; 16.Nf3, '=' with an equal game. ]

Premium Chessgames Member
  LIFE Master AJ: <(Conclusion of annotations for this game.) <<<<<>>>>> >

16.fxe5 Bxe5; 17.Bxf5 Rxf5!;

Out of either desperation or a good sense of self-defense, Black sacks the exchange and the box verifies this as the correct approach for Beihoff.

[ Much worse was: </= 17...g6?; 18.Be6+ Kg7; 19.g5, & White's winning. ]

Amazingly, the next three moves are all 100% best, according to the computer. (Who says all old chess is bad chess?)

18.gxf5 Bxd4; 19.exd4 Qxc2; 20.Qe3 Nf6!; (Head for the OP?)

Black goes for the e4-point.

click for larger view

Fritz indicates that White should be winning here ... (It's not that easy to play Maroczy's position, Black has a lot of counterplay and the WK is not at all secure.)

***** ***** ***** ***** ***** ***** ******

Now both Houdini & Fritz show that Rac1 was best for White. (Maroczy might have seen this, but backed away ... Black could sack on c1, and the WK will have a hard time finding a safe haven on the chessboard.)

21.Qf4!? Ba6!; 22.Rf2!? h6; 23.Re1 Qc3;

Black has done the best that he could do, Fritz reveals that 24.Re7! was just a won game for White.

24.Rg2 Ne4; 25.Qe5??,

White drops the ball ... just inches from the goal-line!

click for larger view

Now we have reached the position for today's POTD.

[ Better was: ยน25.Kh1, with a won game for White! ]

Black to move and win: 25...Qe3+!; (Ouch!!!!)

Beihoff apparently does not miss his opportunity!

Maroczy shoots up the flag of surrender, there was no point in continuing from here.


Mar-25-14  thegoodanarchist: Got it. No special tactical vision needed, obviously.

Black wins with 25...Qe3+ 26. Rxe3 Rc1+ 27. Re1 (27.Nf1 Rxf1#) Rxe1+ and mate next.

Mar-25-14  M.Hassan: "Easy"
Black to play 25...?
Black has a Bishop for a Rook.

It is easy to see that if black delays the attack he can be mated on g7. On the other ahnd, he has a superb Bishop on a6 that can bring him win (with the help of other pieces of course):

26.Rxe3 Rc1+
27.Nf1 Rxf1#
<27.Re1 Rxe1+ 28.Nf1 Rxf1# could be another line to delay mate>

If Queen is not taken, an interesting line is created:

26.Kh1 Qxe1+
27.Rg1 Nf2+
28.Kg2 Qxd2
29.Qe6+ Kh8
30.Qg6 Ne4+
31.Kh3 Ng5+
32.Kg3 Rc3+
33.Kg4 Qe2+
34.Kh4 Qxh2+
35.Kg4 Be2#
More complicated than what at first it looked!. I am not sure if I am 100% right. Glad to receive comments

Mar-25-14  PJs Studio: Once - good take on the practical analysis after ...28 Qxd2 (to add a wrinkle - also possible is 27...Qxd2). Computers excel in complications, but they also DO NOT fear the clock. (Rather annoying to me...)

I have ruined the score (taken the easy way out) of some darn nice games to lock down the full point. Beautiful wins are great, but losing on time while looking for beauty is unacceptable.

In other words, I'm with ya.

Mar-25-14  Whitehat1963: Couldn't find this one. Gonna be a long week!
Mar-25-14  BOSTER: White to play 25. only half move before POTD.

Nobody touch white queen on f4.

My guess after 25.Nf3 white
is better.

Mar-25-14  Nullifidian: 25... ♕e3

If White takes, then it's mate in 3.

The best continuation is 26. ♔h1 ♕xe1+ 27. ♖g1 ♘f2+ 28. ♔g2 ♕xd2, but Black's material superiority still makes it a done deal.

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