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Honza Cervenka
Member since Sep-04-02 · Last seen Jul-08-20
I live in Stredokluky (a village near Prague, Czech republic). I play both practical and correspondence chess. My rating in practical chess (Czech national ELO) oscillates somewhere between 2010 and 2060, in correspondence chess I have rating 2155 (my best was 2220 in the middle of 90's). I have no special favorite player but I like to view good games of old masters (Tarrasch, Schlechter, Chigorin etc.)
>> Click here to see Honza Cervenka's game collections.

Chessgames.com Full Member

   Honza Cervenka has kibitzed 10278 times to chessgames   [more...]
   Jul-07-20 Zsofia Polgar vs Taimanov, 2000 (replies)
 
Honza Cervenka: Why not 42.Bxe7?
 
   Jul-06-20 Ennio Morricone (replies)
 
Honza Cervenka: RIP https://www.fide.com/news/621 https://www.youtube.com/watch?v=2s0...
 
   Jul-06-20 Schlechter vs H Wolf, 1904
 
Honza Cervenka: Very elegant finish.
 
   Jul-04-20 A Stefanova vs G Sargissian, 2007
 
Honza Cervenka: 51.h4 was a mistake leading to a lost Pawn race. After 51.Kd2 white seems to be ok. 29.g4! would have given white good winning chances.
 
   Jul-04-20 Yifan Hou vs A Stefanova, 2007 (replies)
 
Honza Cervenka: <supertimchan: The pgn is incorrect. 48. Rf4 was played> Still it looks weird. After eventual 48.Rf4 Rc3 49.Rf5 black's 49...Rb3 does not make much sense and 49...b3 is obvious choice. Maybe moves 48 and 49 did not happen and the game continued with 48.Kd2 c4 etc.
 
   Jul-04-20 Yifan Hou vs A Stefanova, 2007
 
Honza Cervenka: Hou in her 13 was already awesome in tactics and had fine technique. It was also possible to play 18.Rxa5 with idea 18...Bxa5(?) 19.Bxb7 Rxb7 20.Qxa6 +- but black still has a defence 18...c6 19.Bxf7+ Qxf7 20.Rf5 Qe6 with unclear position.
 
   Jul-04-20 A Stefanova vs Yifan Hou, 2012
 
Honza Cervenka: The order of moves in the opening here is weird. Well, I see that after 6.cxd5(??) hxg5(?) 7.Qa4+ white wins the piece back but simple 6...Bxc3+ 7.bxc3 hxg5 leaves white with just two Pawns and no other compensation for lost/sacced Knight after 8.dxe6 Bxe6 9.Nxg5. I guess ...
 
   Jul-03-20 Blackburne / Aloof vs Bird / Womersley, 1897
 
Honza Cervenka: 37.Bxb6 was last attempt based on stalemate theme. Of course, 37...axb6?? 38.Rxh6+ Kg7 39.Rg6+ Kf7 40.Rxg4 leads to ending K+R vs K+B+2P, which is drawn with correct play.
 
   Jul-03-20 Bird / Hewitt vs G Macdonnell / Pollock, 1885
 
Honza Cervenka: 23.Ng5+ was entertaining but incorrect sacrifice. Black defended the position well to the move 32. Instead of 32...Na2? it was correct to play 32...Nd3! with idea 33.Qh4 Kf7 34.Bxg7 Ne1+! 35.Kf2 Nf3 36.Qh1 Rxd2+ 37.Kg3 Rd1! 38.Qh3 Kxg7 39.Rh6 Qf5 -+. White then started ...
 
   Jul-03-20 H Wolf vs Schlechter, 1904
 
Honza Cervenka: 34...e2! 35.Re1 Qe3 was better.
 
(replies) indicates a reply to the comment.

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 21 OF 21 ·  Later Kibitzing>
Mar-16-18  zborris8: Ok, I see it through now. It's not the king that turns into a knight, it's the pawn. Very good puzzle, <Honza Cervenka>!

( ͡° ͜ʖ ͡°)

Mar-17-18
Premium Chessgames Member
  OhioChessFan: I've heard passed Pawns must be pushed...
Mar-17-18
Premium Chessgames Member
  OhioChessFan: The BR defends e8...the BN prevents check at b2...it's coming together...
Mar-17-18
Premium Chessgames Member
  Honza Cervenka: <OhioChessFan: I've heard passed Pawns must be pushed...>

Yes, passed Pawns must be pushed.... and underpromoted.;-)

Mar-17-18
Premium Chessgames Member
  Honza Cervenka: 1.g7 Qxg7 2.d6+ Kb8 3.Re8+ Rxe8 4.d7+ Nc7+ 5.Bxc7+ Kxc7 6.dxe8=N+ and 7.Nxg7 +-
May-09-18
Premium Chessgames Member
  jith1207: And then there is the small matter of mating the king with a bishop and a knight.

Still better than these two against a queen.

Sep-04-18
Premium Chessgames Member
  Penguincw: Hi <Honza Cervenka>. Happy Sweet Sixteen to you!on this site!
Sep-08-18
Premium Chessgames Member
  Honza Cervenka: <Penguincw> Thanks! :-)
Jan-30-19  JimNorCal: Mr Honza Cervenka, whose picture is your icon?
Is that you, or a well known chess player or ...?
Jan-30-19  JimNorCal: It's a classic look, simple yet elegant.
Feb-09-19
Premium Chessgames Member
  offramp: It's Simon Winawer.
Feb-09-19
Premium Chessgames Member
  offramp: <JimNorCal: It's a classic look> There is something wrong with it. Mr Winawer should look towards the centre of the page.

I had that problem with my avatar: Mr Pike was looking to the left, off the screen. I asked Daniel and he reversed the photo.

Now Mr Pike looks to the centre. This is regularly done in the newspaper and magazine business.

Sometimes it is done to chess scenes, and results in a black square at "h1" (a1 in real life).

Jun-12-19
Premium Chessgames Member
  Honza Cervenka: Black to move wins:


click for larger view

Jun-13-19
Premium Chessgames Member
  OhioChessFan: There's got to be a problem with that position. Any King move to the third rank wins. While trying to figure out what you intended, I found this:


click for larger view

Black to play and win

Jun-16-19
Premium Chessgames Member
  Honza Cervenka: <OhioChessFan> In your diagram 1...Kf1 is apparently the only reasonable move. In my diagram 1...Kf4! 2.a5! Ke4! is the solution. 1...Kg4 with idea to take both white KS Pawns is insufficient for 2.a5 Kxh5 3.Kd2 Kxg6 4.Kc2 h5 5.Kb2 h4 6.Ka3 h3 7.Ka4 h2 8.a3 with inevitable stalemate. Also 1...Kf4 2.a5 Kg5 fails to win due to the same stalemate trick. After 1...Kf4! 2.a5! Ke4! white is in zugzwang, as any Pawn move leaves him without that stalemate defense, which indirectly covers white KS Pawns, and after 3.Kd2 Kf3 4.Kc2 Ke2 5.Kb2 Kd2 6.Ka3 Kxc3 7.Ka4 Kd2 (of course not 7...Kb2 8.a3 with stalemate) 8.a3 c3 etc. there is no stalemate, as white can play 9.Kb3.
Jun-16-19
Premium Chessgames Member
  OhioChessFan: Yes, Kf1 is the only move. I can't believe I missed the stalemate in yours. Oddly enough, I knew if I was missing something-which I was "sure" I wasn't, I knew Kf4 had to be the puzzle move.
Sep-28-19
Premium Chessgames Member
  Ron: A suggested game for your Missed Chances collection:

W Leonhardt vs O Ferreira, 1976

Nov-10-19
Premium Chessgames Member
  Ron: Here's a suggested game for your Missed Chances collection. Zukertort's sacrifice was not sound; his opponent missed the one move that refutes it.

Zukertort vs W A Lindsay, 1874

Dec-28-19
Premium Chessgames Member
  keypusher: There’s a Cervenka playing football for Clemson. :-)
Dec-29-19
Premium Chessgames Member
  Honza Cervenka: <keypusher: There’s a Cervenka playing football for Clemson. :-)>

Well, I used to play football (soccer) some thirty years ago but this is a bit different kind of sport than "American football", and unfortunately I never was in Clemson. The nearest place to Clemson I have ever visited is Mexico City....:-)

Feb-10-20
Premium Chessgames Member
  Honza Cervenka: Today I have played quite interesting Rook ending:

[Event "Prague team ch"]
[Site "Prague"]
[Date "2020.02.10"]
[Round "?"]
[White "Cervenka, Jan"]
[Black "Steiner, Juraj"]
[Result "1-0"]
[ECO "B35"]
[Opening "Sicilian"]
[Variation "Accelerated Fianchetto, Modern, 7.Bc4 Qa5"] [PlyCount "113"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. Nc3 Bg7 7. Bc4 Qa5 8. O-O d6 9. f3 O-O 10. Qd2 Nxd4 11. Bxd4 Qb4 12. Qd3 d5 13. Nxd5 Nxd5 14. Bxg7 Kxg7 15. Bxd5 Qxb2 16. Rab1 Qf6 17. Bxb7 Rb8 18. Bxc8 Rfxc8 19. Rxb8 Rxb8 20. Rd1 Rb2 21. a3 Qb6+ 22. Qd4+ Qxd4+ 23. Rxd4 Rxc2 24. Rd7 a6 25. Ra7 Rc6 26. a4 e5 27. a5 h5 28. h4 Kf8 29. Kf2 Kg7 30. Ke3 Rc3+ 31. Kd2 Rc6 32. Kd3 Kf8 33. g3 Kg7 34. f4 exf4 35. gxf4 Rf6 36. Ke3 Rc6 37. e5 Kf8 38. Kd4 Rc1 39. Rxa6 Rh1 40. Rf6 Rxh4 41. a6 Rh1 42. Kc5 Ke7 43. a7 Ra1 44. Kb6 h4 45. Kb7 Rxa7+ 46. Kxa7 h3 47. Rc6 h2 48. Rc1 Ke6 49. Kb6 Kf5 50. Rf1 f6 51. exf6 Kxf6 52. Kc5 Kf5 53. Kd4 Kg4 54. Ke5 Kg3 55. Kf6 Kg2 56. Ra1 Kg3 57. Kg5 1-0

42.Kc5 was a mistake which could allow black escape from lost position after 42...h4! 43.e6! (43.a7 Ra1 44.Kb6?? h3 even loses, though 44.f5 Rxa7 45.fxg6 Kg7 46.gxf7 Rxf7 47.Rb6 leads to draw) 43...Rc1+ 44.Kd6 Rd1+ 45.Kc7 h3 46.Rxf7+ Kg8 47.a7 Ra1 48.Kd8! h2 49.e7 Rd1+ 50.Kc7 Rc1+ 51.Kb6 Rb1 52.Kc5 Rc1+ 53.Kd4 Rd1+ 54.Kc3 Rc1+ 55.Kd2 Rd1+! (this deserves diagram, both Rooks are en prise but none can be taken)


click for larger view

56.Ke2 Re1+! 57.Kf2 (now 57...Rf1+? would be a grave mistake for 58.Kg3 and white wins but now black can finaly promote his h-Pawn, as the Rook from e1 covers else threatening e8=Q#) 57...h1=Q 58.a8=Q+ Qxa8 (58...Kxf7 is still not an option for 59.Qf8+ Ke6 60.e8=Q+ +-) 59.Rf8+ Qxf8 60.exf8=Q+ Kxf8 61.Kxe1 =. Fascinating line.

Of course, correct continuation was 42.e6! with idea 42...Ke7 43.exf7! Kf8 44.Kc5 +-

Feb-20-20
Premium Chessgames Member
  Honza Cervenka: Experience from the Chessgames Challenge game Y Shulman vs The World, 2007 was quite useful for me today:

[Event "Prague team ch"]
[Site "Prague"]
[Date "2020.02.20"]
[Round "?"]
[White "Pospisil, Evzen"]
[Black "Cervenka, Jan"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2063"]
[Termination "normal"]
[PlyCount "102"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. Qc2 c6 8. O-O Nbd7 9. b3 b6 10. Bc3 Ne4 11. Bb2 Bb7 12. Nbd2 Ndf6 13. Nxe4 Nxe4 14. Rfd1 Rc8 15. Rac1 Bd6 16. Nd2 f5 17. Nxe4 fxe4 18. f4 Qf6 19. e3 Qg6 20. Qe2 h5 21. Bh3 Rce8 22. Kh1 Qh6 23. Rf1 h4 24. gxh4 Qxh4 25. Qg4 Qh6 26. Rg1 Rf6 27. Qg5 Kf7 28. Qxh6 Rxh6 29. Bg4 g5 30. Rcf1 gxf4 31. exf4 Reh8 32. Rg2 Ke7 33. Bc1 R6h7 34. Be3 c5 35. Rff2 Rf8 36. cxd5 exd5 37. f5 Kf6 38. Rc2 cxd4 39. Bxd4+ Be5 40. Bxe5+ Kxe5 41. Kg1 d4 42. Rg3 d3 43. Rc4 Bd5 44. Ra4 Rf6 45. h3 Rc7 46. Kf2 Rc2+ 47. Ke3 a5 48. Bd1 Rh2 49. Bg4 Rxf5 50. Rg1 Rff2 51. Re1 Rfg2 0-1

Feb-29-20
Premium Chessgames Member
  Fusilli: The diagrammed position in the analysis of Cervenka v Steiner is cool! How about a little craziness... imagine if after 56.Ke2 Re1+ 57.Kf2 black, for some reason, doesn't realize he can promote. Instead, he plays 57...Rxe7:


click for larger view

It may be black's second best move.

White has two options. Let's discard 58.Rxe7 h1=Q 59.Re8+ Kf7 60.a8=Q


click for larger view

Black plays 60...Qh2+ and has perpetual, no question about it. White can never cover checks with the queen without losing the rook.

So, let's look at 58.a8=Q+ Kxf7, where black will play for this position:


click for larger view

Would this be a tough nut to crack? Black would have to keep his king one square from f7 any time that white threatens to play Qxf5 (with the white king on e4 or g4, obviously). But the black king would also have to be on a square where white does not gain the opposition after the exchange of Q vs R, even if white doesn't take the pawn on f5 immediately.

I think white should play 59.Qh8, which seems most annoying. Can black still reach the "ideal" position after 59...h1=Q 60.Qxh1 Kg7?


click for larger view

Probably most annoying is 61.Qa1+. After 61...Kh7 (61...Kf7 62.Qh8 seems too strong) white approaches a square at a time with 62.Qa2 Kg7 63.Qb2+ Kh7 64.Qb3 Kg7 65.Qc3+ Kh7 66.Qc4 Kg7 67.Qd4+ Kh7 68.Qd5 Kg7 and now the fortress fails to 69.Kf3 Rf7 70.Kg4


click for larger view

I think this is winning. 70...Rf5 fails to 71.Qxf5 gxf5 72.Kg5, opposition! Other attempts to hold will meet similar exchanges of the queen for the rook with a winning outcome, or white can play f5 for a winning Q v R endgame if black moves the rook away from the f-file.

I must say I worked through this without pieces and without chess software, so forgive me if I omitted something obvious!

Mar-03-20  Boomie: <Fusilli>

<


click for larger view

>

If 70...Rf5 71.Qxf5 gxf5 72.Kg5, then the sneaky 72...Kf8 draws.

The winning technique involves maneuvering black into a weaker position according to the table base.

https://syzygy-tables.info/?fen=8/6...

Mar-04-20
Premium Chessgames Member
  Fusilli: <Boomie> Oooh... cool! Opposition, opposition! The one with the last opposition laugh wins... or draws.
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