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Jiri Vesely vs Josef Rejfir
CSR-ch (1961), Kosice CSR, rd 8, Feb-14
Sicilian Defense: Fischer-Sozin Attack. Leonhardt Variation (B88)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
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Mar-09-09
Premium Chessgames Member
  johnlspouge: Monday (Very Easy):

J Vesely vs J Rejfir, 1961 (29.?)

White to play and win.

Material: Even. The Black Kg8 has 3 legal moves. The White Rc3 faces the Black Rc7 on a semi-file, burdening Qe7. The White Bb3 pins Pf7 to Kg8. The White Qh5 also attacks Pf7. The White Kg1 is open to checks on the a7-g1 diagonal, but is presently secure.

Candidates (29.): Qxf7+, Bxf7+, Rxc7

29.Qxf7+ Qxf7 30.Rxc7

The best Black has is 30…Qxb3, losing the exchange and a P.

Mar-09-09  TheaN: Back after some horrible late-week puzzles.

Monday 9 March 2009

<29.?>

Material: /=\ w: ♕ + ♖ + ls♗ + 7♙ / b: ♕ + ♖ + ds♗ + 7♙

Candidates: Qxf7†..., Bxf7†, Rxc7, alternating, <[Qxf7†]>

-ML-
Woah, this one actually took me a while. Just wouldn't see it in the beginning. What we see is clear initiative to White with an inactive Bishop for Black. However, they are opposite, and opposite Bishop endings are almost always drawn. So, White should have a tactic here. I looked at Qxf7†, Bxf7† and Rxc7 whilst being obsessed with the mate on the back rank, but that isn't there. No, White plays a <pinned defender> tactic here.

<29.Qxf7†!> does most definitely work. Declining this 'piece sac' (after 29....Qxf7 30.Bxf7†?? ) is not an option...

/A\
<29....Kh8/Kh7 30.Qg8‡ 1-0>

/B\
<29....Qxf7 30.Rxc7!> ...but accepting won't work either! The Black Queen is pinned on her King by the White Bishop, cannot take back the Rook and will be captured next move. Although the Bishop is defended, it's the only gain Black can still get from his Queen...

<30....Qxb3 31.axb3 > ...but Black pawns should now be falling like rain due to Black's inactive Bishop against an almighty Rook. Nice tactic.

Time to check.

Mar-09-09
Premium Chessgames Member
  Aurora: 29 Qxf7 sould win easily.
Mar-09-09  TheaN: 1/1

Funny Qg8‡ was missed by some regulars: I guess that once a puzzle becomes 'materialistic', the 'mate' puzzle senses stop working or something :).

Mar-09-09  khursh: My mind tried to solve the puzzle by ♕ sac. After spending less then 10 seconds on couple of moves and tactics, I found week point and solved the puzzle backward :)

1. Blacks weakest point is ♙ on f7
2. White's ♗ is X-raying king
3. White's ♖ targets black's ♖
4. If forcing blacks ♕ to stand on f7, then blacks ♖ on c7 will stay undefended

5. Capturing black's ♙ on f7 with white's ♕ forces abovementioned point 4. to enlive :)

let me check

Mar-09-09  StevieB: Finally, after a dismal week last, I solved one. Took me a while though, but I had plenty of time left. lol
Mar-09-09
Premium Chessgames Member
  agb2002: <TheaN: 1/1

Funny Qg8‡ was missed by some regulars: I guess that once a puzzle becomes 'materialistic', the 'mate' puzzle senses stop working or something :).>

In my case, the converse is also true ;-)

Mar-09-09
Premium Chessgames Member
  kevin86: It took a minute to figure out this one. There is a pseudo-queen sac (an offer that can't be refused) at f7 that pins the enemy queen. The rook is then unprotected and the queen cannot run away.

The result-queens are exchanged and white wins a rook for a bishop-and the game.

Mar-09-09  Lightboxes: Took a while but the easiest thing to do was to solve it with brute force. Sacrifice/capture each piece one at a time.
Mar-09-09  njchess: The irony for me concerning this game is that, although Black is not in a great position (h4 followed by g5 will give him major problems), he has managed to dig his queen out from a8 into a more active position, only to throw all that hard work away by playing 28. ... Rc7??. Time might have been a factor, or maybe he was just playing for the pawn endgame. Other than that, everybody loves Monday's puzzle.
Mar-09-09  jon01: White to move 29. ?

After looking the position for a moment, I noticed that black queen would be pinned after 29. Qxf7+! Qxf7 30. Rxc7.

Mar-09-09  ZUGZWANG67: 29.Qxf7+ Qxf7 (29. ...Kh8 30.Rxc7) 30.Rxc7. That' s a cute decoy of the BQ toward a pin.

Time to check (GULP!)

Mar-09-09
Premium Chessgames Member
  zenpharaohs: I committed to Qxf7 before doing any analysis whatsoever. I suppose once having read a book by Tal where there is a whole chapter about attacking f7 almost no matter what would be my justification.

This is one of those ones where what you learn from the puzzle is to spot this sort of thing quickly, so you will rarely overlook it when planning your attacks or defense.

Mar-09-09  KNIGHTSTALE22: I feel very ashamed right now, but somehow I missed the idea of the pin. Funny how I got reasonably close on sundays puzzle and this straight forward win fooled me lol. Maybe I need to seriously brush up on my pattern recongnition when it comes to exploiting pins. Bring on Tuesday quick before I hit an all time low lol.
Mar-09-09  number 23 NBer: 29 ♕xf7+! just wins, as on 29...♕xf7 30 ♖xc7 and white wins the exchange owing to the pin on the queen, and on 29...♔h8(or h7) 30 ♕g8#.
Mar-09-09  BISHOP TAL: I spent bout 4 mins on it and I diddnt see it (1800 playchess rating)and bam I miss a monday puzzle hopfully ill see it in a game now if it comes up lol.Zen do u remember wich Tal book it was.
Mar-09-09  TheaN: <agb2002: In my case, the converse is also true ;-)>

Heh, nice catch. Strange, that the other way around is the only thing that happens to me, as it also did today, almost.

Mar-09-09
Premium Chessgames Member
  thegoodanarchist: pin and win! This was a "hard" Monday puzzle. I looked at two other moves and it took me about 15 seconds to realize Qxf7 picks up the exchange.
Mar-09-09  laskereshevsky: 1.♕xf7+! ♔xf7 2.♖xc7....

The combination was pretty easy,

(Why Im easy...haaa haaa haaa haaaaaa.....im easy like a sundaaay mooorning) :)...

The only tought point is the tipical psychological reticence to even consider to put the ♕ in a square under control of the enemyes units....

(In good english) ...to sacrifice the old street walker...

Mar-09-09  SamAtoms1980: Disrupt the guard, then pin the guard, then win the guard.

Today is a bad day to be the guard.

Mar-09-09  ku0826: in a minute, flushed in Bishop-pinning.
Mar-09-09  muralman: Sunday is my favorite too. This was an easy one as should be, but it is also very satisfying seeing the black queen so helpless.
Mar-10-09
Premium Chessgames Member
  zenpharaohs: BISHOP TAL: "Zen do u remember wich Tal book it was."

Attack with Mikhail Tal, by Tal and Damsky.

Mar-10-09  TCS: It took 30 hours of processing time but here is Fritz analysis - just cut and paste into a pgn file

1-0[Event "CSR-ch"]
[Site "Kosice"]
[Date "1961.??.??"]
[Round "8"]
[White "Jiri Vesely"]
[Black "Josef Rejfir"]
[Result "1-0"]
[ECO "B88"]
[Annotator "TCS"]
[PlyCount "65"]
[EventDate "1961.??.??"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. O-O Be7 8. Bb3 O-O 9. Be3 Nxd4 10. Bxd4 b6 11. f4 Bb7 12. Qf3 Rc8 13. Rfe1 Qc7 14. f5 e5 15. Bf2 Qb8 16. Rad1 Qa8 17. Bh4 Rfd8 18. Bxf6 Bxf6 19. Nd5 Bxd5 20. Rxd5 Rc5 21. Qh5 Qb7 22. Re3 Qe7 23. Rh3 h6 24. Rhd3 Rxd5 25. Rxd5 Rd7 26. g3 Kh7 27. Rd3 Kg8 28. Rc3 (28. a4 Rc7 29. Qd1 (29. c3 Qd7 30. Qd1 (30. Rd5 Bg5 31. Kg2 Rc8 32. Qd1 Qc6 33. Qd3 $16 0.88/16) 30... Be7 31. Rd5 Rc5 32. Kg2 Qb7 33. Qe2 $16 0.94/17) (29. Kf2 Rc5 30. Rd5 (30. Qd1 Qb7 31. Kf3 Be7 32. c3 a6 33. Ba2 $16 0.84/17) 30... Bg5 31. c3 Rxd5 32. Bxd5 Bc1 33. Qe2 $16 0.88/18) 29... Qe8 30. Rxd6 (30. Rd5 Qc6 31. Qd3 Be7 32. c3 Qe8 33. Qb5 $16 0.91/18) 30... b5 31. axb5 Qxb5 32. Qd3 Qb4 33. Kf1 $16 0.94/17) (28. Qe2 b5 29. Bd5 ( 29. Rd5 a6 30. c4 (30. Kg2 Rd8 31. a4 bxa4 32. Bxa4 Qb7 33. Bb3 $14 0.66/17) 30... b4 31. Qe1 Rb7 32. Qd1 Qe8 33. Rxd6 $16 0.72/17) (29. Kg2 Qd8 30. Bd5 ( 30. Rd5 a6 31. c4 bxc4 32. Bxc4 a5 33. Qd2 $16 0.94/17) 30... Rc7 31. Rb3 a6 32. c3 Rc5 33. a4 $16 1.00/18) 29... Rc7 30. Rb3 (30. Ra3 Qd7 31. c3 Rc5 32. Kg2 Bd8 33. Rb3 $16 0.75/18) 30... a6 31. a4 bxa4 32. Rb8+ Kh7 33. Qxa6 $16 1.38/16) (28. Kg2 b5 29. Qe2 (29. a3 Rc7 30. Qd1 (30. Rd5 Rc5 31. Qe2 a6 32. c3 Bg5 33. Ba2 $16 0.78/17) 30... Rc6 31. Bd5 Rc8 32. Rb3 Qd7 33. Qe2 $16 0.78/17) (29. Rc3 Qd8 30. Qe2 (30. Qd1 b4 31. Rc6 Bg5 32. Qf1 Rc7 33. Rxc7 $16 0.84/18) 30... b4 31. Rc6 Rc7 32. Qb5 Rxc6 33. Qxc6 $16 1.00/17) 29... Rb7 30. Bd5 (30. Qd2 Bg5 31. Qb4 Rb6 32. Bd5 Qd7 33. a3 $16 0.78/16) 30... Rb6 31. Rc3 Qd7 32. a3 a5 33. b4 $16 1.00/18) (28. Kh1 b5 29. Qe2 (29. Rc3 Qd8 30. Bd5 (30. Qd1 a5 31. Qe2 Qb6 32. Bd5 Rc7 33. Rb3 $16 0.72/18) 30... b4 31. Rb3 Qc8 32. c3 bxc3 33. Rxc3 $16 0.78/17) (29. Bd5 Rc7 30. Qe2 (30. Qd1 a5 31. a3 a4 32. Ba2 Rc6 33. c3 $16 0.72/17) 30... Qd7 31. Rb3 Rc5 32. c3 Bd8 33. Kg2 $16 0.81/17) 29... Rc7 30. Qd1 (30. Rd5 a6 31. c3 Rb7 32. c4 bxc4 33. Qxc4 $16 0.78/17) 30... Rc6 31. Bd5 Rc5 32. b4 Rc8 33. Ra3 $16 0.94/18) ( 28. Bd5 Rc7 29. Qd1 (29. c3 b5 30. Kh1 (30. Kg2 Bg5 31. Qd1 a5 32. Qh5 b4 33. cxb4 $14 0.69/17) 30... Qd7 31. Qe2 a5 32. Kg2 Qc8 33. a3 $16 0.75/17) (29. Qe2 Qd7 30. Kh1 (30. Kg2 Qb5 31. Bb3 Bg5 32. c3 a5 33. h4 $16 0.75/17) 30... Qb5 31. c4 Qa4 32. Ra3 Qb4 33. Kg2 $16 0.78/19) 29... Qd7 30. Bb3 (30. Qe2 Qb5 31. c4 Qc5+ 32. Kg2 b5 33. a3 $16 0.78/17) 30... Qc6 31. Rd5 Bg5 32. Kg2 Rc8 33. c3 $16 0.94/17) 28... d5 (28... Rc7 29. Qxf7+ Qxf7 30. Rxc7 Qxb3 31. cxb3 Bg5 32. Kf2 Kf8 33. Rxa7 $18 4.91/17) 29. Rc8+ (29. Bxd5 Qb4 30. Rc8+ ( 30. Qe2 Qxb2 31. Rc8+ Bd8 32. Kg2 Qc1 33. a4 $14 0.47/15) 30... Kh7 31. Qe2 Qd4+ 32. Kg2 Rxd5 33. exd5 $16 0.94/16) (29. exd5 Rd8 30. Rc6 (30. Rc4 b5 31. Re4 a5 32. a4 bxa4 33. Rxa4 $14 0.31/18) 30... Kh7 31. c3 e4 32. d6 Qd7 33. Rc4 $14 0.53/15) 29... Kh7 30. exd5 (30. Bxd5 Qb4 31. Qe2 Bg5 32. c3 Qe7 33. Qc4 $18 1.47/16) 30... Bg5 31. Kg2 Qf6 32. h4 Be3 33. Rc6 $18 1.53/16 1-0

Mar-14-09
Premium Chessgames Member
  patzer2: For the Monday, March 9, 2009 puzzle solution, White initiates a pin to gain a pawn and the exchange after 29. Qxf7+!

Play would continue 29...Qxf7 30. Rxf7 unless Black succumbs to 29...Kh7? 30. Qg8#.

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