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Jun-26-04 | | patzer2: Portisch's early 11. Bxh2+!! looks like an opening trap in this Nimzo-Indian attack. The game is listed as number 1613 in the Encyclopedia of Middle Games (Demolition of Pawn Structure: Sacrifice on h2). Declining the Bishop sacrifice loses for Black after 11...Kh8 12. Ng5! g6 13. Qg4! . Forced was 13...Qxg5 because the alternative is mate-in-five after 13...Re8 14. Qxf7+ Kh8 15. Qh5+ Kg8 16. Qh7+ Kf8 17. Qh8 Ke7 18. Qxg7# |
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Oct-30-04 | | aw1988: patzer2: Donner's early 11. Bxh7+!!. |
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Oct-31-04
 | | An Englishman: Good Evening: I wonder if this game provoked Hubner into analyzing 5...Nc6; 6.Nf3,Bxc3+ and making it his own. Certainly, by 1970 he was scalping some of the best players in the world. |
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Jan-10-09 | | sfm: As we know now Black is in grave danger after 8.e4. But what is the best response then? 8.-,h6 , 8.-,g6 or 8.-,e6 ?
Surely LP knew it was over after 9.e5. But there´s hardly a defense. |
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Feb-16-12 | | waustad: Lifetime Donner didn't do that well against Portisch, but this time he got him. |
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Apr-17-18
 | | offramp: Amazing to see the Mt Rushmore-like Portisch totally lost in just 11 moves.
The bishop is moved from d3 to b1, then it springs straight back out again. Very clever! |
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Apr-17-18 | | catlover: I'm not very well versed on the Nimzo-Indian Defence, but it sure looks like on move 7 Portisch should have played something that prevented 9. e5 since that drove the Knight away from f6 and opened up the possibility of Bxh7. Not sure what to suggest, though. |
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Apr-17-18
 | | An Englishman: Good Evening: 6...d5 (with thousands of games in the database) is the main line of the 4...d5 NID for a lot of reasons. This game shows one of them. |
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Apr-17-18 | | ChessHigherCat: <the Mt Rushmore-like Portisch> I've heard of two-faced people, but four-faced? |
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Apr-17-18
 | | al wazir: If black retreats the ♗, after 15...Ba5 16. bxc3 Bxc3+ 17. Ke2 Bxa1 18. Rxa1, he has ♖+♘+♙+♙ for his ♕. But white lifts the ♖ and attacks along the h-file. For example, 18...Bd5 19. Rc1 Nc6 20. Rc3 Nd4+ 21. Kf1 Nf5 22. Rh6 Nh3 23. Bxh6 gxh6 24. Qxh6. |
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Apr-17-18 | | AlicesKnight: Why not 15 .... Ba5? |
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Apr-17-18
 | | perfidious: <AlicesKnight: Why not 15 .... Ba5?> The rejoinder 16.Bd2 is winning for White. |
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Apr-17-18 | | ChessHigherCat: <AlicesKnight: Why not 15 .... Ba5?> 16. Bd2 (AKA bishop detour or Bd2'er) |
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Apr-17-18 | | mike1: no, Stockfish actually gives white after 15...Ba5 only a slight advantage:
+0.45 (34 ply) 15...Ba5 16.Bd2 Nd5 17.Bxa5 Nf4 18.Qg5 Nd3+ 19.Kd2 Nxf2 20.Rhe1 Nc6 21.Bc3 Nd4 22.Qh4 Nb3+ 23.Ke2 Nxa1 24.Kxf2 Nc2 25.Rf1 Bd5 26.Qe7 Nd4 27.Qxc5 f6 28.Ke3 fxe5 29.Rxf8+ Rxf8 30.Bxd4 exd4+ 31.Kxd4 Rb8 32.Kc3 Rb7 33.Kc2 Kf7 34.Kc1 Ke8 35.Qd6 Bxg2 36.Qg3 Be4 37.Qxg7 Bd3 38.Kd2 Rb3
Main point is Nf4 which is not possible with the bishop on c1-h6 |
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Apr-17-18 | | ChessHigherCat: <mike1> Why "no"? It's still an advantage. Do you have a better move than 16. Bd2? |
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Apr-17-18 | | gars: Portisch losing to Donner? I am surprised, astonished, amazed, perplexed, dumbfounded, you name it! |
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Apr-17-18
 | | keypusher: <ChessHigherCat: <mike1> Why "no"? It's still an advantage. Do you have a better move than 16. Bd2?> He's probably responding to <The rejoinder 16.Bd2 is winning for White.> Usually the million dollar question in positions like this is whether Black can play 12....Kg6. The answer, after 13.h4, appears to be no. |
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Apr-17-18
 | | keypusher: The computer annotations to this game are worth looking at. |
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Apr-17-18 | | JohnBoy: <CHC> - I believe <mike1> is merely objecting to <perf>’s “16.Bd2 is winning”. Better... certainly. Winning... not quite. |
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Apr-17-18 | | mike1: Yes, Bd2 is not winning.Nothing more, nothing less. White is slightly better |
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Apr-17-18
 | | offramp: <offramp: Amazing to see the Mt Rushmore-like Portisch totally lost in just 11 moves.> <JohnBoy: <CHC> - I believe <mike1> is merely objecting to <perf>’s “16.Bd2 is winning”.
Better... certainly. Winning... not quite.> Having read the comments, and seen the computer annotations that keypusher mentioned, it looks like I was premature in writing off Portisch's chances. SF, in the annotations, gives 11.Bxh7+ as ⩲ +1.12. Its next comment is 15...Ne4?, it prefers 15...Ba5 16.Bd2 etc which it says is = +0.45. So somewhere Donner lost 60% of a pawn, but SF doesn't know where. |
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Apr-17-18 | | WorstPlayerEver: Whoa 8...exd5 seems playable. |
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Apr-17-18
 | | perfidious: I stand by my post, based on my assessment on looking at the diagram; makes no difference to me what a nearly fifty-ply variation ginned up by a poster using software says. I would far rather think for myself, same as the old days. |
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Apr-17-18 | | sneaky pete: A really oldfashioned master might play 15.bxc3 Bxc3+ 16.Ke2 Bxa1 17.Rxa1 ..  click for larger viewthreatening 18.Bf6 ..
Does black have a sufficient defence here? |
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Apr-17-18
 | | keypusher: <sneaky pete> Foregoing an engine, this old-fashioned patzer would play 17....Be4 and I think the king will survive. |
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