May-05-04
 | | Honza Cervenka: 12.Bf6 is a pretty move, but probably not sound. After 16...Kd7 instead of 16...Qb6 black has material advantage and white's attack is hardly sufficient even to keep a balance. 21...Qd8 was a blunder, but after 21...Qd6 white has an advantage too, for example 22.Nd2 (threatening Nxc4) 22...Qxd2 23.Qa8+ Rd8 24.Qc6+ Rd7 (24...Qd7? 25.Rxe6+ fxe6 26.Bg6#) 25.Rad1 Qxd1 (the Queen cannot retreat for Qxd7#) 26.Rxd1 Nxf6 27.Bxe6 fxe6 28.Qxe6+ Be7 29.Rxd7 Nxd7 30.Qxa6 |
|
May-05-04 | | AdrianP: <Honza> <12.Bf6 is a pretty move, but probably not sound.> What do you think Tarrasch had in mind after 12...gxf6. Black looks fine to me after 13. exf6 Nc6 14. Bxd5 (otherwise simply 14...Na5 ?) Qd6 and Q-side castles. Am I missing something? |
|
May-06-04 | | vonKrolock: <Honza Cervenka>: i'll trust in Your conclusion about 21.a5!, so, instead of 20...b4?, the attractive 20...Rh6!! suggests itself, whith 21.axb5 Rxf6! to follow; if 22.Rxa6, then Qc5! practically forces the exchange 23.Bxe6 Rxf3 24.Bxd7 etc, and lines arising from bxa6!? Bc5! also seems suitable for Black... <AdrianP> the immediate acceptance of the romantic Bishop's sacrifice was advisable too |
|
May-06-04
 | | Honza Cervenka: <AdrianP> Tarrasch wrote in his Dreihundert Schachpartien that after immediate taking of Bishop and following retreat of black Knight (not specified) white has after Bxd5 good attack. It works well after all other retreats of the Knight than Nc6. After 12...gxf6 13.exf6 Nc6 white can play also 14.a4!? with idea 14...Na5 15.Bxd5 c6 16.Rxe6+ fxe6 17.Qh5+ with strong attack or 14...b4 15.Bxd5 Qd6 16.Qd3 or 14...Rb8 15.axb5 axb5 16.Bxd5 Nb4 (16...Qd6 17.Ra6) 17.Rxe6+ fxe6 18.Qh5+ etc. <vonKrolock> 20...Rh6 looks well. |
|
May-07-04 | | vonKrolock: ok, Mendelson himself prepared the Rook manoeuvre whith 18...h5, but never carried it out. The variation 8...Ne7 had an illustrious godfather, A. Anderssen recomended it in "N. Berliner Sz" in 1871, later it was adopted occasionally by Zukertort, and in 1893 By Chigorin against Tarrasch himself in their first match game at St. Petersburg 1893 (see here 1-0 29 moves)... by the way, White's (Tarrasch) play in that game was considered nearly a refutation of 8...Ne7... |
|
May-07-04 | | AdrianP: <Honza> Thanks for the above... I like both of the lines you give, Rxe6+ in both lines really cracks open Black's position - he may survive but it'll be unpleasant. |
|
Mar-16-10 | | SugarDom: A real thrashin' game! Fantastic! |
|
Mar-16-10
 | | ajk68: Great development on both sides of the board! |
|
Mar-16-10 | | Bonifratz: What a massacre! |
|
Mar-16-10
 | | NM JRousselle: A pretty game by the winner.
Alas, yet another example of poor defense that was rampant during this time period. |
|
Mar-16-10 | | queenfortwopawns: Nice pun indeed! |
|
Mar-16-10 | | kevin86: Black's king is chased from "pillow" to post. |
|
Mar-16-10
 | | chrisowen: Siegbert dusts off soot yes showing who's boss. Tarrasch sweeps away his defence with great care. Crazy 21..Qd8 brings a tear to my eye. The real puppet master pulls strings bagging Mendelson. Net it with 22.Rxe6 soon the glove fits around black's neck. Line of 11 checks in a row puts him to bed. |
|
Mar-16-10 | | waustad: Another criss-cross mate. Perhaps we have a theme this week. |
|
Mar-16-10 | | rapidcitychess: I was the judge of this pun. You better be grateful!;) |
|
Mar-16-10 | | ROO.BOOKAROO: After 16. Qh5, I don't understand why Mendelson didn't take the f6 pawn with 16. ...Qxf6 or 16. ...Nxf6k. It fills me with puzzlement. Why leave the threat on f6 as a base for potential attack while controling e7 which is a key escape square for the Black King? While 16. Qb6 may look forward to Bc5 building up a battery aiming at f2, while protecting the Bishop on e6. Club players at my level wouldn't hesitate grabbing the f6 pawn, but it's true that they have the elementary urge to grab whatever's grabbable |
|
Mar-16-10 | | patzer2: <Honza Cervenka>'s analysis of the acceptance of the Bishop sacrifice with 12...gxf6!? is fascinating. Fritz 10 confirms much of <Honza>'s excellent analysis, but gives the advantage to Black after: 12... gxf6 13. exf6 Nc6 14.a4 Na5 15. Bxd5 (15. Qh5 Qxf6 16. Bxd5 O-O-O 17. Bxe6+ fxe6 18. Nc3 Nc4 19. axb5 a5 20. Qh3 Qf5 21. Qh4 Nb6 22. Rxa5 Rg8 23. Qe4 Qxe4 24. Rxe4 Rd2 25. Rxe6 Bc5 ) 15... c6 16. Rxe6+ fxe6 17. Qh5+ Kd7 18. Qf7+ Kc8 19. Bxe6+ Kb8 20. Nc3 Qc7 21. Qh5 b4 22. Ne4 Ka7   click for larger viewAnalyzing this position to 20-depth Fritz 10 gives the following possibilities: 1. (-1.47): 23.Re1 Rd8 24.h3 Nb7 25.c3 Qb6 26.f7 b3 27.Qf5 h5 28.Qe5 Rh6 29.Bc4 Ka8 30.Qf5 Nd6 2. (-1.47): 23.c3 Rd8 24.Re1 Nb7 25.h3 Qb6 26.f7 b3 27.Qf5 h5 28.Qe5 Rh6 29.Bc4 Ka8 30.Qf5 Nd6 3. (-1.47): 23.h3 Rd8 24.Re1 Nb7 25.c3 Qb6 26.f7 b3 27.Qf5 h5 28.Qe5 Rh6 29.Bc4 Ka8 30.Qf5 Nd6 4. (-1.49): 23.h4 Rd8 24.Re1 Nb7 25.c3 Qb6 26.a5 Qc7 27.Qf5 Bd6 28.f7 bxc3 29.bxc3 Bh2+ 30.Kh1 Be5 31.h5 5. (-1.49): 23.Qf5 Rd8 24.c3 c5 25.h4 Nb7 26.h5 c4 27.Re1 b3 28.Qf3 Qa5 However, as I play these positions out, I have very little confidence in the Fritz analysis and much more respect for Honza's analysis from five years ago. I think the computer underestimates the potential of White's Kingside passed pawns, and I think the position may play out much closer to equal. Still, it would appear 12...gxf6 would have been perfectly playable move for at least equality, albeit with a complex and unbalanced position. |
|
Mar-16-10 | | RandomVisitor: After 9...Be6:
 click for larger view Rybka 3: <d=14>
<[+0.63] 10.Nd4> Ng6 11.c3 Qh4 12.f3 [+0.42] 10.Nbd2 Nc5 11.Nd4 Qd7 12.N2f3 Ng6 13.c3 |
|
Mar-16-10 | | AxelBoldt: Crafty recommends 16.... Kd7! followed by Nxf6, Kc7, Bd6 etc. with advantage for Black. |
|
Mar-16-10 | | SugarDom: I'm grateful rapidcitychess.... |
|
Mar-28-10 | | rapidcitychess: <SugarDom> Don't be. I rated it at 2!;) |
|
Sep-11-24
 | | Honza Cervenka: <Crafty recommends 16.... Kd7!> 16...Qd7 with intention to play O-O-O was also playable, and it was more natural for a human player. |
|
Sep-11-24
 | | Honza Cervenka: <21...Qd8 was a blunder, but after 21...Qd6 white has an advantage too> Silicon beast suggests 21...Qc7 as a viable defense. Still, 22.cxb4 Bxb4 23.Nc3 Bxc3 24. bxc3 Rh6 25.Bxe6 fxe6 26.f7+ Rxf7 27.Qa8+ Qd8 28.Qxa6 leads to a position, where I would prefer to play with white pieces. <ROO.BOOKAROO: After 16. Qh5, I don't understand why Mendelson didn't take the f6 pawn with 16. ...Qxf6 or 16. ...Nxf6.> After 16...Qxf6 I would be a bit afraid of 17.Qxd5, though 17...Rc8 18.Qb7 Be7 is fine for black according to silicon beast. 16...Nxf6, as the played move 16...Qb6 clearly suggests, Mr. Mendelson dismissed due to threat Rxe6+. Once again, silicon beast says that 16...Nxf6 17.Rxe6 Be7 18.Rxf6 Bxf6 19.Nd2 d4 is viable line for black but it is not easy to see that for a human player. |
|