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Laszlo Hazai vs Gyula Sax
Hungary (1971), ?
Philidor Defense: Larsen Variation (C41)  ·  0-1



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Premium Chessgames Member
  jffun1958: 18. ... Rd1+
A. 19. Nxd1 Qf1#
B. 19. Qxd1 Bxe3#
Apr-30-14  gofer: This one took far longer than it should!

<18 ... Rf4>

The rook is immune!

19 Bxf4? Qd4+!
20 Be3/Qe3 Qxe3/Bxe3
21 Qxe3/Bxe3 Bxe3#/Qxe3#

Black is threatening Rf1+ causing mayhem...

<19 Bxa7 ...>

White avoids the mating threats by saving its DSB. But at what cost?

<19 ... Rf1+>
<20 Qxf1 Bxf1>
<21 Rxf1 Qe5>

Positionally black is way in the lead! Q+R+B v 2R+N+B is not a certain win for black, but while Rh1 is out of action the material lead is really quite significant, but how to convert this to a win? What will white play next? What will black do? <That my dears is another story which I will tell you next time. Good Bye!>


Oh No! Say its not true!!!!

I looked at Rd1+ but dismissed it due to Nxd1. I foolishly thought white accepted the Rf4 sacrifice and that was why this was a Wednesday level puzzle...

Apr-30-14  patzer2: For the answer to this Wednesday quiz, 18...Rd1+! combines the decoy, deflection (removing the guard) and obstruction tactics to force mate-in-two.

Decoy (i.e. forcing a piece to a specific square) and deflection (a.k.a. removing the guard) occur with 18...Rd1+ 19. Qxd1 Bxe3#.

Decoy and obstruction (a.k.a. interference) occur with 18...Rd1+ 19. Nxd1 Qf1#.

P.S.: In other words, 18...Rd1+ either removes the Queen's protection from the Bishop on e3 to allow mate after 19. Qxd1 Bxe3#, or it interferes and obstructs the Queen's protection of f1 to allow mate after 19. Nxd1 Qf1#.

Apr-30-14  patzer2: White's decisive mistake was 18. Kg1?, as 18. Kg3! forces the draw by perpetual check with 18...Qe5+ 19. Kf3 Qf6+ 20. Kg3 Qe5+ 21. Kf3 Qf6+ 22. Kg3) 18... Rd1+ = (draw by three-fold repetition).
Apr-30-14  patzer2: According to Fritz 12, the simple 13. dxc6! (position below), threatening 14. Nd5, wins for White:

Laszlo Hazai - Gyula Sax, Hungary 1971

click for larger view

Analysis by Fritz 12 (21/52 depth on 2.1 GHZ dual core processor):

1. (2.52): 13...Bxc3+ 14.bxc3 Re4 15.Rb1 Nf6 16.Bc4 Bc8 17.Bd3 Re6 18.0-0 0-0 19.Bxa7 Rxc6 20.Bd4 Rd8 21.Qg5 Re6

2. (2.63): 13...Nf6 14.Qd2 0-0 15.0-0-0 Ne4 16.Nxe4 Rxe4 17.Rhe1 Re8 18.Qa5 Bc8 19.Bg5 Qe5 20.Qxe5 R4xe5 21.Rxe5 Bxe5 22.Rd7 Rf8

Apr-30-14  morfishine: Sax sacks leaving White in a haze

<18...Rd1+> and mate next move: 19.Qxd1 Bxe3# or 19.Nxd1 Qf1#


Premium Chessgames Member
  Once: <PJs Studio: ... I took an extra minute and said the moves out loud.>

That's a really interesting statement. I've often wondered if sound plays more of a part in chess games than we sometimes realise. That probably sounds odd for a game largely played in silence, so I'd better explain.

A number of GMs say that we should talk to the pieces. Yasser Seirawan, I think, for one. Ask each piece where it wants to go and what it wants to do.

There's also a hidden rhythm to a chess game, almost as if it was a piece of music. Good players know when it is time to move from development to an attack, which is analogous to a piece of music moving from an introduction to the main theme - knowing when to bring the prelude to a close in an orchestral piece or in rawk and rowl, knowing when to end the twiddly geetar intro and get the drummer started pounding out the beat.

Talking to yourself can also help to identify what you ought to be doing next, especially if it involves overworked pieces.

Take today's POTD, for example. As we are casting around for a move, our inner dialogue might go something like this:

"Bxe3 would be mate if it wasn't for Qxe3."

"Qf1 would be mate if it wasn't for Qxf1."

"Rd8 would be mate if it wasn't for Nxd1 or Qxd1."

Saying it out loud helps us to realise that the white queen keeps cropping up in the conversation. This piece is doing most of the work to defend the white position - she's the one that everyone is talking about.

This level of attention would be fabulous if you were Lady Gaga, but is not so relevant for a caissic regal terminatrix. It sounds like she's nearly overworked...

And what do we do with a nearly overworked piece? We give it more work to do, until it cracks.

Let's try 18...Bxe3 19. Qxe3. Nope, that doesn't work. The Ra1 defends both d1 and f1. We have succeeded in deflecting the white queen but we haven't overloaded her. If anything, we've helped white to bring an extra piece into the defence.

The other overworking move is 18...Rd1+. Now this is more like it! White either has to move the queen or recapture the rook with the Nc3, which blocks the white queen from defending f1.

So one way to find the solution today is to ask the white queen what she doesn't want - the anti spice girls question. She might say that she's got far too much to do and really doesn't want another job.

The other way to solve this is by asking the white king what he doesn't want. He is stalemated at the start of the puzzle and so doesn't want another check. So, as we know, the tried and tested way of exploiting a stalemated king is to check, check, check until dead. And it doesn't take long working our way through the list of checks available to black to find the one that kills.

Odd that chess should be both a quiet game and a noisy one. Who would have thunk it? You just have to practise saying the words in your head and without moving your lips.

Apr-30-14  zb2cr: I wasted time looking for White to move. 18. ... Rd1+ does it.

If 19. Qxd1, Be3#. If 19. Nxd1, Qf1#.

Premium Chessgames Member
  Oxspawn: This is a highly stressed position where everything can take everything and there are potential discovered checks and pins all over the board. Black is down a piece and a pawn and white has two more black pieces in its sights. But white has telling pressure on f1 and the black king can barely squeeze into its square. So I looked at
18. Bxe3+
19. Qxe3+ aargh
I peered hopefully at:
18. Qf1+
19. Qxf1 Bxe3+
20. Qf2 Bxf2
21. Kxf2
which is kind of satisfying but not, I think winning.

And then excitedly (I hope) found better a way to distract the white queen…. 18. Rd1+
19. Nxd1 Qf1++
19. Qxd1 Bxe3 seems to me to be mate….
Can that be it? A two mover on a Wednesday seems a little light. I will risk posting this and check afterwards to see what I missed.

Premium Chessgames Member
  Oxspawn: I thought that solving the Wednesday puzzle would be better than sax. But it turns out to be only better than Hazai.
Premium Chessgames Member
  Willber G: <Once: <PJs Studio: ... I took an extra minute and said the moves out loud.>

That's a really interesting statement. I've often wondered if sound plays more of a part in chess games than we sometimes realise. That probably sounds odd for a game largely played in silence>

For those who follow snooker, Stephen Hendry says that he used to "commentate" on each shot in his head to help him compile large breaks. It worked well for him (seven world titles and numerous other records).

Premium Chessgames Member
  gawain: This is marvelous!


if 19.Qxd1 then Bxe3#

if 19.Nxd1 then Qf1#

I spent some time looking at 18 ... Qf1+ --but since this is Wednesday not Monday that did not work.

Apr-30-14  Herma48852: Made little progress looking at the queen sac on f1 and then found this pretty rook sac instead:

18...Rd1+ 19.Qxd1 (Nxd1 Qf1#) Bxe3#

Apr-30-14  Sally Simpson: Nice puzzle.

"Stephen Hendry says that he used to "commentate" on each shot in his head to help him compile large breaks."

Tarrasch said he something along the lines of annotating a game whilst playing it.

I recall a note of his saying after he had played a certain move that this was the most instructive path for his readers to follow. Something like: 'I always have my dear readers in mind when playing a game and am making mental notes what to point out when I note up the game. '

Not the exact quote - but along those lines.

Always been fond of a mate invovling the two Bishop and speaking of Tarrasch and two Bishop mates.

NN vs Tarrasch, 1932

Final Position

click for larger view

A finish very similar to:

NN vs Blackburne, 1880

Final Position.

click for larger view

Premium Chessgames Member
  kevin86: A brilliant interference theme!

18...♖d1+!! 19 ♕xd1 ♗xe3# or 19 ♘xd1 ♕f1#. The queen will be decoyed or the queen will be blocked!

Premium Chessgames Member
  kevin86: Will Sax be phoning any time soon?
Apr-30-14  BOSTER: < Once: Good players know when it is time to move from development... , which is analogous to a piece of music...>.

This is why M.Taimanov have never won a world crown.

Apr-30-14  sombreronegro: Another theme on the queen trying to hold a light and a dark square. Very neat. The knight entombs her or she is lured away from the dark squares.
Apr-30-14  GrandMaesterPycelle: I wonder if 18. Ke1 would have saved white.
Apr-30-14  Mating Net: Great move order puzzle where the process of elimination is the key to arriving at the winning …Rd1+.
Apr-30-14  Pedro Fernandez: Note that the only role of the black queen is to impede the access of the white king to f2-square.
Apr-30-14  patzer2: Coming back to this game, I kept wondering how after 13. dxc6! White would meet the troublesome 13...Rd4!? (diagram below).

click for larger view

Here White wins with the build up of an overwhelming attacking position with 14. Nd5! Qe5 (Best for Black according to Fritz 12 is 14... Rxd5 15. Bxd5 Nf6 16. Bf3 O-O 17. c4 Qb4+ 18. Qd2 Qxc4 19. b3 Qe6 20. O-O-O ) 15. f4!(also winning is 15. c4! Ne7 16. f4! ) 15...Qe4 16. Nxc7+ Kf8 17. Nxa6 Qxg2 18. Rg1 Qxc6 19. c3! Re4 20. Nb4 Qe8 21. Nd5 .

Apr-30-14  solver43: An interesting position indeed. Black
mates by Qf1 mate or Bxe3 mate.

In order to achieve this the white queen
must be forced off the c1..h6 diagonal or
otherwise blocked from defending f1.

To that end :
18...Rd1 check
If 19 Nxd1 ?? Qf1 mate
If 19 Qxd1 Bxe3 mate

May-01-14  PhilFeeley: So many ways to mate! I can't believe this came from a Philidor, an opening I consider less than aggressive from the black side.

Rd1+ of course deflects the overloaded queen.

May-23-22  newzild: Laszlo Hazai's for Sax!
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