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George Page vs Vladimir Petrov
Folkestone Olympiad (1933), Folkestone ENG, rd 3, Jun-14
Queen Pawn Game: Symmetrical Variation (D02)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Aug-03-11  estrick: Poor George Page, Scottish Champion, but Blackburne he was not. Lost nine of the ten games in the CG database.
Jan-02-14
Premium Chessgames Member
  al wazir: Read the biography of Vladimir Petrov
Jan-02-14  Seaholme: Didnt even look at Qf6+ since i was to busy calculating 18.. Qh4 with the threat of Qh3 mate.

18.. Qh4 Here i first looked at 19 Rg1, but it gets into a bad endgame after 19.. Qh5+ 20. Rg4 f5 21. Bxf5 Rxf5+ 22. Kg2 Rg5 23. f3 Qh2+ 24. Kf1 Qh1+ 25. Kf2 Rh5 if for example 26. Rg2 then the pretty 26..Bg3+ wins but instead 26. Qf1 (missed this move(saw it playing through my variations) and thought it was an easy win) transposes into a long endgame.

So i had to look for better defenses for black 19. Qd2(e1) loses immideately to 19.. Qh5+ 20. Kg2 Qg4+ 21. Kh1 Qg3+ 22. Kg1 Qh2 mate. But if white instead plays 19. Qd1 I see nothing better then the perpetual Qg5+ and Qg2+.

I guess I got to caught up in making Qh4 work that I didnt even notice Qf6+ which is a rather obvious candidate move. Qh4 leads to a draw (have not checked with a computer, please someone do, im interested in if my calculations are correct).

Jan-02-14  Cheapo by the Dozen: The obvious line is
18 ... Qf6+
19 Kg2 Qg5+
20 Kh3 Qh4+
21 Kg2 Qh7+
21 Kf3 Qh4+ winning the queen

Small deviations from that by White from move 20 onward just get him mated, probably with his king at g1.

Alternatively,
18 ... Qf6+
19 Kg4 R(a)e8
20 f3 Qh6

followed by sacrificing at f5 looks promising, but I haven't worked out the details.

Jan-02-14  Cheapo by the Dozen: Hmm. I'm not sure I see the mate after 20 Kh4.

Meanwhile, I'm grumpy to see White getting spanked in a Colle System game. I used to play that opening as a kid.

Jan-02-14  Seaholme: <Cheapo by the Dozen: The obvious line is 18 ... Qf6+
19 Kg2 Qg5+
20 Kh3 Qh4+
21 Kg2 Qh7+
21 Kf3 Qh4+ winning the queen>

20.. Qh4 and I just take the queen with my king

Jan-02-14  paramount: Bad puzzle.

With the true logics, everyone would choose Qf6+.

Jan-02-14  diagonalley: hmmm... i too was focussed on 18....Q-R5 ... darn
Jan-02-14  M.Hassan: "Medium"
Black to play...18
Black has two pawns for a Bishop.

The obvious move would be to check:

18.............Qf6+
19.Kg4
<19.Kg2 is another line that fails: ...Qg5+ 20.Kh3 Qh6+ 21.Kg4 f5+ 22.Bxf5 Rxf5 if 23.Kxf5 Qg6#>

19...........Qe6+
20.Kh4 g5+!
21.Kxg5 Kh8 to activate Rook
22.Qf3 Rg8+
23.Kh5 Bd8
<if 24.e4 to open line of action of Bishop, then Qg6#>

24.Rg1 Rxg1
25.Qf5 Rg5+
26.Qxg5 Qh3+!
27.Qh4 Qxh4
And mate will follow eventually.

Jan-02-14  Seaholme: I disagree Paramount, you have to calculate all variations in the Qf6+ line, it is not obvious that it leads to a certain victory. There are other candidate moves (Qh4, Qg5, and maybe even crazy stuff as f5)
Jan-02-14  PJs Studio: ...d4 was another candidate move. As well as Qg4, Qh5. One thing that complicated my time was that white can sac at h7 and then check Qc2 which creates a nice luft for the white King at e2. Qf6! Solves every problem nicely.
Jan-02-14
Premium Chessgames Member
  whiteshark: This Page has been left blank intentionally.
Jan-02-14  abuzic: The original CG theme was: ♘ sac: 15...Nxg4;

15...Bg6 was stronger than <15...Nxg4>; after 15...Ng4 16.hxg4 Bxg4 17.Rd1 white is fine,

here white blundered <17.Kg2?> Bxf3+ 18.Qxf3 <(again not 18.Kxf3?? Qf6+ winning as today's puzzle> 18.Qxf3 Qg5+ 19.Kh3 Qh6+ 20.Kh3 f5+ 21.Bxf5 Qd6 22.Qg3 h5+ 23.Kh3 Rxf5, balck is better.

Jan-02-14
Premium Chessgames Member
  agb2002: Black has two pawns for a bishop.

The first idea that comes to mind is 18... Qh4 but White can play 19.Qd1, releasing e2 for the king and controling the diagonal d1-h5 so that the black queen can't move to g4 after 19... Qh5+ 20.Kg2.

This suggests 18... Qf6+, trying to get a better position for the queen with tempo:

A) 19.Kg2 Qg5+ 20.Kh3 (20.Kh1 Qh4+ 21.Kg2 Qh2+ 22.Kf3 Qh5+ 23.Kg2 Qxe2 - +) 20... Qh6+ 21.Kg4 (21.Kg2 Qh2+ as in the previous variation) 21... f5+ 22.Bxf5 (22.Kf3 Qh5+) 22... Rxf5 with a winning atack (23.Kxf5 Qg6#).

B) 19.Kg4 Qe6+

B.1) 20.Kf3 Qh3#.

B.2) 20.Kh4 g5+ 21.Kxg5 (21.Kh5 Qh3+ 22.Kxg5 f6#) 21... Kh8 followed by Rg8 with a winning attack. For example, 22.Rh1 Rg8+ 23.Kh5 (23.Kh4 Qh6+ 24.Qh5 Bd8+ 25.Kh3 Qxh5#) 23... Qe5+ 24.Kh4 Qg5+ 25.Kh3 Qh6+ 26.Qh5 Qxh5#. Or 22.Bxh7 Rg8+ 23.Bxg8 Rxg8+ and mate in three.

B.3) 20.Kh5 Qh3+ 21.Kg5 f6#.

B.4) 20.Kg5 h6+ 21.Kh4 (21.Kh5 Qh3#) 21... g5+ 22.Kh5 Qh3#.

B.5) 20.Bf5 h5+

B.5.a) 21.Kh3 Qxf5+ with attack and two extra pawns.

B.5.b) 21.Kh4 Qxf5 as in B.5.a (22.Qxh5 is met with 22... Bd8+ winning the queen).

B.5.c) 21.Kxh5 Qxf5+ 22.Kh4 g5+ 23.Kh5 Qh3+ 24.Kxg5 f6+ 25.Kg6 Qh7#.

B.5.d) 21.Kg5 Qf6+ 22.Kxh5 Qxf5+ transposes to B.5.c.

Jan-02-14  gofer: I was wondering about <18 ... Qh4>, but Bf5 followed by Qc2 seems to hold. So I had to look elsewhere at more direct lines...

<18 ... Qf6+>

19 Kg2 Qg5+
20 Kh3 Qh6+ (Kh1 Qh4+ mating)
21 Kg4 f5+
22 Bxf5 Rxf5 mating with one of...

a)

23 Kxf5 Qg6#

b)

23 Rh8 Rg5+
24 Kf3 Qxh1#

c)

23 f5 Qh5+
24 Kg6 Qxe2
25 Rf3 Rg5+ (Any other move Rg5+ mating)
26 Kh4 Qxf3
27 Kxg5 Qg3+
28 Kh5 g6+ (Kf4 Qh3+ 29 Kg5 Bd8#)
29 Kh6 Qh4#

So the black king must go to g4, not g2!

<19 Kg4 Qe6>
<20 Bf5 h5+!>

The clincher!

~~~

I would like to say that I saw <20 ... h5+!> , but I didn't...

Jan-02-14  morfishine: I think both 18...Qf6+ and 18...Qh4 win
Jan-02-14
Premium Chessgames Member
  FSR: Fascinating game; it shows what a joke the Colle System is. After 8...e5! Black has equality or better in all lines.
Jan-02-14  zb2cr: I got lost in the calculations after starting with 18. ... Qf6+. I couldn't convince myself that all lines led to advantage for White.
Jan-02-14  goodevans: You know there's something wrong when your K is the most advanced of your 6 pieces!

<morfishine: I think both 18...Qf6+ and 18...Qh4 win>

I think you're right. <18...Qh4 19.Bh5> is a minor annoyance but it's pretty easy to drive the B off the c8-h3 diagonal. If white chooses instead to sac the B then black's got to be better.

Jan-02-14  backyard pawn: Thanks <al wazir: Read the biography of Vladimir Petrov> Truly fascinating.
Jan-02-14
Premium Chessgames Member
  Penguincw: I thought there was rook lift needed, but it's "only" Thursday.
Jan-02-14  abuzic: <17.Kg2?> was a bad move: 17.Rd1 Qf6 18.Kg2 Bxf3+ 19.Qxf3 Qxc3 20.Qe2 now if 20...Qxa1 21.Bb2 Qxb2 <21...Qxa2? 22.Bxh7+ Kxh7 23.Qh5+ Kg8 24.Bxg7 wins> 22.Bxh7+ Kxh7 23.Qxb2, white has a Q for black's R+B+2P, both can live with this, it seems.


click for larger view

Jan-02-14  griga262: <al wazir>Thanks! What a fascinating story! As a side note, the mysterious "lung inflammation" is the [incorrect] verbatim translation from Russian, and it means "pneumonia".
Jan-02-14
Premium Chessgames Member
  thegoodanarchist: My first reaction upon seeing the puzzle was "How did they get to <that> position??"

To heck with the puzzle, now I am more interested in the first 17 moves.

Jan-02-14  Ed Frank: I didn't calculate to victory, but I instead tried to find the move using logic. 18...Qf6+ is the most active move, is a forcing move, and there is no dangerous refutation by white. After this move, black simply makes his position better and has another turn to keep attacking or improving his position. I want to ask, as a chess novice: is this a reasonable way to go about making moves?
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