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Jan-26-09
 | | agb2002: Hello Joe,
I've just sent an Excel spreadsheet to your gmail account showing some progress in the approach we commented on a week ago. I'd like to have your opinion. Regards,
Antonio |
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| Feb-02-09 | | zanshin: <MAJ> I was looking for examples of positions that are known to be 'engine killers', and came up the one given to you by <whiteshark> a couple of years ago. Just for fun, I tried it out on Rybka 3 (1-PV: cleared hash tables) and here's what I got. 
click for larger view (White to move and win) [+4.80] d=25 1.Be6 (0:03.32) 37260kN
[+3.20] d=25 1.Be6 (0:03.26) 36000kN
[+0.80] d=25 1.Be6 (0:03.26) 36000kN
[+0.40] d=25 1.Be6 (0:02.43) 30106kN
[+0.20] d=25 1.Be6 (0:02.31) 28049kN
[+0.00] d=24 1.Be6 Ke8 2.Nf5 gxf5 3.Kg5 f4 4.Kg6 f3 5.Kg5 Kd8 6.Bc7 Ke8 7.Be5 Kd8 8.Bc7 Ke8 9.Be5 Kd8 10.Bc7 Ke8 11.Be5 Kd8 12.Bc7 Ke8 13.Be5 Kd8 14.Bc7 Ke8 15.Be5 Kd8 16.Bc7 (0:01.46) 19885kN At 25-ply, Rybka announces she has found something, but does not give the line. I now proceed to coax it out of her by sliding forward. This seems to be her top line: <1.Be6 Ke8 2.Nf5 gxf5 3.Kh5 f4> 
click for larger view [+5.00] d=20 4.f3 (0:00.00) 0kN
[+4.60] d=20 4.f3 (0:00.00) 0kN
[+3.80] d=20 4.f3 (0:00.00) 0kN
[+0.00] d=19 4.f3 (0:00.00) 0kN
[+0.00] d=18 4.f3 (0:00.00) 0kN
Interesting ... I'm still not sure I understand this completely though. |
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Mar-04-09
 | | al wazir: <MAJ>: I too have long been troubled by the artificiality of <CG>'s puzzles. It's obviously easier to find the winning move when you're told that one exists. I would win a lot more of my games if I were prompted that way! The puzzler helpfile says ". . . we occasionally show a puzzle that we call a spoiler. These are positions where there is no move that clearly wins the game . . . You are expected to recognize the unsoundness of the tempting sacrifice . . ." Alas, such "spoilers" occur very seldom. I think that the reasons are twofold: They would make more work for <CG>, and there's no apparent demand from the paying customers for a different format. If <CG> began running spoilers routinely, imagine the wails and laments! But the added realism might be welcomed among the stronger players and more serious solvers. I gather that your campaign hasn't gotten much traction. So maybe it's time to set your sights a little lower. Suppose, *on Sundays only*, as an experiment, <CG> were to begin posing spoilers 50% of the time on a random basis *without telling anyone.* What would happen? If the innovation proved popular, it might be a first step toward implementing your scheme. And if not, it could be quietly put away and forgotten. |
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Jun-01-09
 | | MostlyAverageJoe: <al wazir> Yeah, CG did not want to fix what is not broken, and I don't think they would even want to do it on experimental basis, one day a week. One of these days, if I have too much time on my hands, I'll start a competition daily puzzle (with consistently determined Mon-Fri levels, too :-). But this day is not even close (as evidenced by my long absence, I am way too busy...). |
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Jun-01-09
| | agb2002: Welcome back Joe! I see you have been slightly busy for three months... Are you planning to resume the puzzle rating problem? |
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Jun-02-09
| | al wazir: <MAJ>: Welcome back from wherever you've been. |
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Jul-02-09
| | MostlyAverageJoe: Copied from Gligoric vs Smyslov, 1959: <David2009: <MAJ:> I suggest we continue over the board, I will play White. I agree with your suggestion for White 38 Ng3 Nxb2 39 Qxb2. Your move.
It is now 19:48 French time and I am out this evening. Apologies in advance for a delayed reply to your 39th move!> 39...Bh4
click for larger viewThreatening BxN, with Qf3 to follow. |
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Jul-03-09
 | | David2009: 40 Rxa5. If 40..Bxg3+ then 41 Kxg3 |
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Jul-03-09
| | MostlyAverageJoe: Past moves:
<38 Ng3 Nxb2 39 Qxb2 Bh4 40 Rxa5 Bxg3+ 41 Kxg3> 41 ... Qf3+
42. Kh2 (forced, since if Kh4 then Qxf4#)
42 ... Qxf4+
43. Kg1 (forced, no other moves)
43 ... Qg3+
44 Kf1 (forced, since if Qg2 then Qxg2#)
44 ... Qxh3+
click for larger viewIntending to chase you onto the second rank and win the queen. |
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Jul-03-09
| | David2009: I resign. The game can end 45 Ke1 Qh1+ 46 Kd2 Qg2+ 47 Kc1 Qf1+ 48 Kd2 Qf2+ 49 Kc1 Qe1#. So 40 Rxa5 loses. How does Black win after 40 Qxb3+ Kh8 or g7 41 Qa2 protecting the Q whilst eliminating a very dangerous P? |
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Jul-03-09
| | MostlyAverageJoe: <David2009: How does Black win after 40 Qxb3+ Kh8 or g7 41 Qa2> 40...g7 is impossible.
After <40 Qxb3+ Kh8 41 Qa2>: 41 ... Qf3 (threatens Qxg3#)
42 Nh1 (otherwise lose N or #)
42 ... Qxf4+
43 Kg1 (otherwise #)
43 ... Qf3 (threatens Qxh1#)
If 44.Kh2, then f4! threatening Bg3+ Nxb3 Qxb3# and white has to throw away lots of material to delay mate in this position: 
click for larger view44 d5 (blocking B support for Q and attacking B) then Bxd5 attacking the white Q and threatening Qxh1# 45 Qh2 Bb7! (opening the d-file for attack): 
click for larger viewThe main threat now is, e.g.:
46. Rxh4 Rd1+ 47. Rxd1 Qxd1+ 48. Kf2 Qd2+
click for larger view
losing the Q (49 Kg1 Qe1# or 49 Kg3 Qe3#) |
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Jul-03-09
| | MostlyAverageJoe: PS: Last analysis done with Deep Shredder. |
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Jul-03-09
| | David2009: <MostlyAverageJoe> Thanks - very interesting variations. |
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Jul-06-09
| | David2009: <MAJ> I think you will enjoy this superb game:
M Pavlovic vs Quinteros, 1986
Find-the-move positions occur after Black's 21st and 24th move. I did not expect either continuation. |
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Jul-20-09
| | David2009: M Pavlovic vs Quinteros, 1986 White to play 25?
click for larger view
Enjoy!
[I have just discovered how to copy diagrams] |
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| Nov-13-09 | | Red October: Battle of the Brains III has started you would be on Team White :) looking forward to your participation |
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Dec-12-09
 | | Domdaniel: <MAJ> Nice thinking on 1-29-40. I was looking for players who'd won or drawn or lost 29 of 40 games. Some close, none exact, all wrong. |
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Dec-12-09
| | MostlyAverageJoe: <Domdaniel> Indeed, that was plausible. My first try was for for the 1st game of (19)29th (year) of 40 (moves). |
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Dec-12-09
 | | technical draw: Good show Joe. I was in that same area. |
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Dec-13-09
 | | dakgootje: Heh, I had come up with all kinds of weird theories; like, seeing how Anand is 40 I gathered 'maybe there have been 28 other 40-year olds playing at a certain level before him' and thus looking for his first game as a 40+'er. Or the one where I noticed there had been 40 Chess Olympiads (including 2 initial unofficial ones); thus looking for which country came in First in the 29th olympiad and looking through all those games... Oh the fun I had... |
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| Feb-12-10 | | Red October: nice songs |
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Mar-23-10
 | | Honza Cervenka: Hi MAJ,
I don’t know whether you have read my recent messages at Kibitzer’s Café or not and so I am posting it here too. On Monday of last week I have become proud father of (the second) daughter named Aneta. You can see her picture on the site of regional newspaper “Kladensky denik” (Kladno’s Daily) at http://kladensky.denik.cz/miminka/m... where is just now till this Friday (12:00 A.M. CET) running a polling contest for the most sympathetic baby born last week in regional maternity hospitals organized by the newspaper. Personally I am not much interested in such a kind of competitions but my wife likes it very much and she would be much happy to see our little girl on the top. Right now we are on the second place in very tense and close race with two other contenders and so every additional vote is very important for the final outcome. If you would like to help me to make my wife even happier than she already is now, just click on the link above, flag “Aneta Cervenkova, Stredokluky” (the first name in gray box on the right side on the screen) and hit the “hlasovat” button below. It is possible to vote repeatedly always after 60 minutes from one IP address... :-D Thanks and warm regards, Honza |
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Oct-12-10
 | | whiteshark: <MostlyAverageJoe> Where are you? Almost five months without kibutzing... |
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Dec-14-10
| | MostlyAverageJoe: <whiteshark: <MostlyAverageJoe> Where are you?> Overworked -- not much time for chess.
Just stopped by to pick up some stuff for Christmas :-) |
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Dec-14-10
| | technical draw: Hi, <MAJ>. I like the mostly average title of your forum. |
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