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| Mar-01-06 | | YouRang: <dzechiel> I just had a peek at your site. A very nice double knight sac in that correspondence game you've posted. :) It goes nicely with the double bishop sac featured in this game. |
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| Mar-01-06 | | alphee: <patzer2:> <However, to get back to <al wazir>'s initial question, reversing the order and capturing with 21. Bxg7? does make a difference, as it throws away a sure win and gives Black practically even chances after the clever 21...Kxg 22. Qg4+! Kh8 23. Bxh7 Qc7! =.> True that's what I did and it doesn't work. Shame on me ! |
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| Mar-01-06 | | alphee: <homersheineken:> one program you can download from the net at [http://www.wmlsoftware.com/] is Chesspad from Mark vand der Leek(freeware, go to Google and just type chesspad or the adress above).
It runs with Crafty 18.10 which you can get from the web too or from ChessBase with version 19.19.
Crafty is a bit more complex to download with all its modules and libraries but a good program ... make sure you download everything. I didn't try to download from Chessbase, may be easier ...
To Crafty, in Chesspad go to Database/Preference/Engine and follow the instructions.
It will accept your games using the sequence: Game/copy as/PGN.
If you have Fritz you can also use Crafty as a kibitzer or to their compare analysis (some times surprising and if you want to know about the differences you can use Modern Chess analysis from Robin Smith - Gambit publishing).
Chesspad will handle big pgn databases and also has its own format to use them when very big. Good stuff,fast to load, do not take much place on the screen and has good search facility for the DB. I use it to store the puzzles when I travel.
On Chesspad site you will also get a good SW to analyse DBs from a positional point of view, more sophisticated than Fritz or ChessBAse but too sophisticated for me.
Enjoy .... |
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| Mar-01-06 | | brainzugzwang: <belka: I don't know either, but even giving up the g7 pawn and trying to use the g file would have been better.>
Well, that's kinda what I was thinking, too. Looking closer, after 20... f5 21.Bxg7 loses a bishop to 21... Rg8 (both B's are attacked); and somewhere down the line, Black could play ...Qc7 to get Her Majesty access to the K-side and help defend the rank laterally. White could answer 20... f5 with 21.g4 to try to blow open the K-side and re-open the bishop's diagonal, but the presence of the White king makes this tricky. |
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| Mar-01-06 | | brainzugzwang: ... or does White immediately play (after 20... f5) 21.Qh5+? ...g6 seems to simply reinforce f5 as a new strong point for Black, even though he is horribly weak on the long diagonal. |
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| Mar-01-06 | | Warrush: I got the move order right but i couldn't see the checkmate. |
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| Mar-01-06 | | drnooo: without a computer, I wonder if there are not plenty of winning either faster or slower combos after the white bishops go. The sac was easy enough as everyone points out from Laskerville, but are the rest of the moves the best??? |
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| Mar-01-06 | | homersheineken: <ice lemon tea> and <alphee>
Thank you both!! :) |
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| Mar-01-06 | | MorphyMatt: 2.78859992366222999483777 seconds. |
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Mar-01-06
 | | Sneaky: <ganstaman: Someone had posted to another game with a double bishop sacrifice that they just look for several key positional features in order to know that the sacrifice is probably good (ie you may be able to get away without actually analyzing all the tactics).> Yes, that was me, and I'm flattered that you remembered it. I posted it to Miles vs Browne, 1982 (another great ♗♗ sacrifice) I'll repost it here since it's become topical again:
* * *
Just like Reti said, you really don't need to see a single move ahead! You just check all of the criteria, like a shopping list: (A) Weakly defended king with no escape on f7/f8. (B) The "Horowitz bishops" pointing at g7/h7. (C) A rook ready to lift in for the fatal check. (D) No good way to block the check. Everything's in the shopping cart, so it's time to ring the register! ca-ching! |
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| Mar-01-06 | | dzechiel: <YouRang> Thanks for noticing. I probably had better correspondence games over the years, and shorter games as well, but none that ended quite like that. I couldn't believe that my opponent would take the queen's knight pawn with a queen! |
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| Apr-23-06 | | ganstaman: From my 3/1/06 post: <I started playing the Bird's opening, which can easily get the bishops in place for this sacrifice (something like f4, e3, Bd3, b3, Bb2). So far, no one has given me the opportunity to try it out. I wonder if I'll have the guts to follow through, anyway.> Today I was playing some G/5 blitz games. I got tired of other openings and used the Bird (which I had previously given up). One game went something like this (it was a live game, and we didn't record it, this is what I remember of the game): <I'm white, which is how I can play the Bird...>
1. f4 d6 2. Nf3 Bg4 3. e3 Bxf3 <she said, "we need to get rid of you"> 4. Qxf3 Nc6 5. b3 Nf6 6. Bb2 e6 7. Bd3 Be7 8. O-O O-O 9. Nc3 <I don't remember the next move, possibly this?> a6 10. Ne4 Nxe4
11. Bxe4 d5 <she said "and now we need to get rid of you," you don't understand how happy I was to be 'gotten rid of'> 12. Bxh7+ Kxh7 13. Qh5+ Kg8 14. Bxg7 Kxg7 15. Qg4+ Kh8 <"oh, so you're going to make me run for a minute" -- I replied "hopefully more than a minute"> 16. Rf3 f5 <I wonder if there's anyting better?> 17. Rh3+ Bh4 18. Rxh4+ Qxh4 19. Qxh4+ Kg7 <and the game continued, but I don't remember how. I'm up in material, 2 pawns and a Q against a R and N, but there's still a game to be played, especially given the time controls. Important thing is that I pulled it off without losing :)> One other important thing -- don't play passively against the Bird. If you're aggressive and still solid, you can likely get an advantage. But if you play passively, sitting back and waiting, the Bird can be deadly. |
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| Nov-26-11 | | TheMacMan: there was no mate?? did humpy miss it? |
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Jan-29-25
 | | takebackok: Got this?! Wednesday, everything pointed at the pawns and king so, bombs away. 21. Bxh7+ Kxh7 (if Kh8 22. Qh5 gg) 22. Qh5+ Kg8 23. Bxg7 Kxg7 (if f6 24. Qg6 etc.) 24. Qg5+ Kh7 25. Rf3 Rg8 26. Qh4+! forces 26...Kg6 27. Rg3+ Kf5 still trying to work out 28. Qh7+ or Qh5+ glad the clock says dinner time. |
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| Jan-29-25 | | mel gibson: I saw that move straight away as the start of nice King hunt. Stockfish 17 says:
21. Bxh7+
(21. Bxh7+ (1.Bxh7+ Kxh7 2.Qh5+ Kg8 3.Bxg7 Kxg7 4.Qg5+
Kh7 5.Rf3 Rg8 6.Qh4+ Kg6 7.Rg3+ Kf5 8.Qh7+ Kf6 9.Rxg8 Ke7 10.Qh8 b5 11.Rxc8
Qb6 12.Qf8+ Kf6 13.Qd8+ Qxd8 14.Rxd8 Be7 ) +8.35/40 242) score for White +8.35 depth 40 |
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Jan-29-25
 | | perfidious: Looks vaguely familiar, a la Lasker-Bauer or Nimzowitsch-Tarrasch. |
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| Jan-29-25 | | saturn2: Another with a double B sacrifice theme was Kasparov vs Portisch |
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| Jan-29-25 | | cocker: Very accurate play by White. For example, 26 Qh4+ is much better than 26 Qh5+. |
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Jan-29-25
 | | chrisowen: Jury its ep v its solar q both its Bxh7+ ago qo abbot lab v its aha its ram its abc claw its Bxh7+ its eg x |
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Jan-29-25
| | perfidious: <saturn2: Another with a double B sacrifice theme was Kasparov vs Portisch> True, though less straightforward than this game or the seminal examples noted above, hence in my mind a finer piece of combinative play. |
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| Jan-29-25 | | TheaN: Double Greek gift, kind of a common pattern, though this one is a bit more involved because White has no access to h3. This one plays a bit like your average Willis/Butler/Statham action movie featuring the Rock: "e4 do you copy, over? Cleared to fire!" <21.Bxh7+! Kxh7 (Kh8 22.Qh5 with Bg6 +-) 22.Qh5+ Kg8> "b2 cover her Majesty!" <23.Bxg7! Kxg7 (f5 24.Qg6 +-) 24.Qg5+ Kh7>. "I need backup, where's the Rock?" <25.Rf3>:
click for larger view
Okay enough with the movie shenanigans and back to chess; this position is kind of unique considering White played h3 at some point so the finish is not very clear cut. White threatens 26.Rg3 with #1 Qg7#/Qh5# (faster than 26.Qh5+ Kg7 27.Rg3+ Kf6 28.Qg5#). We can deduce Black doesn't have a lot of options: 25....Rh8 doesn't prevent it. 25....Bxf4 26.Rxf4 Qxf4 27.exf4 +- is easily won. 25....f6 takes away a crucial escape square: 26.Qh5+ Kg7 27.Rg3#. Lastly, 25....Be7 runs into the 'slower' mate: 26.Qh5+ Kg7 27.Rg3+ Kf6/Bg5 28.Q(x)g5#. So, <25....Rg8>, threatening Rxg5. Here I was stuck for a while. Black just vacated f8, and White doesn't want the king to run there, but that can't be prevented. Indeed, it can't: <26.Qh4+! Kg6> if 26....Kg7, f8 is the literal coffin: 27.Rg3+ Kf8 28.Qd8#. <27.Rg3+ Kf5>:
click for larger view
I have to be honest, at this point I thought we were quite far in for a Wednesday (albeit the combination playing itself), and wasn't sure whether to play 28.Rxg8?! right away (which I eventually decided on) or 28.Qh7+! first. Still, I'd say for a Wednesday, seeing either 28.Rxg8 or 28.Qh7+ is fine. With 28.Rxg8?! White takes the rook and pinning Bc8 with the king is still in a terrible position so it seemed okay. After 28.Rxg8?! Black can try 28....Ke4!? 29.Qh8 Qa7! 30.Qc3! Qxe3+ 31.Qxe3+ Kxe3 32.Rxc8 +- but White will win the endgame. However, <28.Qh7+!> first is quite a bit better, <28....Kf6> as 28....Rg6? 29.Qxf7+ Ke4 (Rf6 28.Qh7+ Rg6 29.Qxg6#) 30.Qxg6+ +- takes the rook with tempo and the king hunt is still on, <29.Rxg8 +-> and this position is slightly better as the king's cut off and Qh8 now comes with check. Long puzzle today, but enjoyable. |
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| Jan-29-25 | | alshatranji: The first moves practically play themselves out, and the rest can be found during play. One fine point: it's important to play 26.Qh4+, instead of 26.Qh5+. The latter allows 26...Kg7, and if 27.Rg3+, then 27...Kf8, 28.Qh6+, and White still wins, but not as quickly. After 26.Qh4+, however, 26...Kg7 is not possible because of 27. Rg3+ Kf8 28. Qd8#. |
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| Jan-29-25 | | Lloyd Gross: I got the first three moves, but then did the rook lift too soon (24. Rf3). I also missed 28.Qh7+ but chose this alternate line, 28. e4+ Kxe4 29. f5+ Kd5 30. Rd3+ Kc6 31. Qc4+ Kb6 32. Qd4+ Kc7 33. Qxd6# which is probably not sound. |
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Jan-29-25
| | chrisowen: Hang reeking but roy h7 no? |
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| Jan-29-25 | | vajeer: 
click for larger view
Here black may try 28...Rg6
Play may continue as 29. Qxf7+ Ke4 30. Qxg6+ Kd5 31. e4+ Kc6
click for larger view
Here it seems that Black may be able to fight on as it has two bishops vs rook & 3 pawns. But after 33. e5 black will lose dark square bishop. 33..Be7 loses to Qe8+ and Bc7 loses to Qc2+ and mate follows (curious can work it out). But this puzzle is definitely beyond Wednesday level. |
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