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Carl Langan
Joined: 02 Jun 2012 Posts: 1526
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Post subject: Re: Komodo 10.4 released Posted: Mon Mar 20, 2017 11:10 pm |
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lkaufman wrote: |
carldaman wrote: |
Nordlandia wrote: |
Do principle of "Major Piece Redudancy" affects Komodo evaluation if there is two queens for one side, and many pieces remaining elsewhere on the board?
Penalty for the Queen pair (Larry Kaufman called it "principle of redundancy" although how much of penalty implied is unknown. In theory rook pair, knights and queens suffers from this.
Viktor Korthnjoi --->
Hypothesis "Having two Qs may be clearly worse than having a Q and 2 Rs. That would definitely be a special case.
Quote: |
During the analysis, I discovered something very remarkable: the board is simply too small for two Queens of the same color. They only get in each other's way. I realize that this might sound stupid, but I fully mean it. The advantage is much less than one would expect by counting material. |
[d]1rbqnk2/4ppbp/p2p2p1/2p5/2P1PP2/3P2PP/1P1QN1B1/q1BNRRK1 w - - 0 1 |
Besides redundancy, a simplistic argument would be that the second Queen is only worth a Q-1 since the promoted pawn goes off the board. Add to that the fact that 2R = Q+1 and you already have a 2 point deficit when comparing a 2nd Q to 2R. |
The diagram shows R + N for the queen, not two rooks. |
The reply was aimed at the quoted 'hypothesis' statement, not the diagram. |
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Subject |
Author |
Date/Time |
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Thu Mar 16, 2017 3:05 am |
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Thu Mar 16, 2017 4:06 am |
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Wed Mar 15, 2017 4:08 pm |
Re: Komodo 10.4 released |
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Wed Mar 15, 2017 10:21 pm |
Re: Komodo 10.4 released |
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Thu Mar 16, 2017 3:55 am |
Re: Komodo 10.4 released |
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Thu Mar 16, 2017 4:55 am |
Re: Komodo 10.4 released |
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Thu Mar 16, 2017 5:01 am |
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Thu Mar 16, 2017 2:08 pm |
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Thu Mar 16, 2017 8:43 pm |
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Thu Mar 16, 2017 8:52 pm |
Re: Komodo 10.4 released |
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Thu Mar 16, 2017 6:18 am |
Re: Komodo 10.4 released |
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Thu Mar 16, 2017 3:57 pm |
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Thu Mar 16, 2017 7:34 pm |
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Thu Mar 16, 2017 7:40 pm |
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Larry Kaufman |
Thu Mar 16, 2017 9:57 pm |
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daniel jose |
Fri Mar 17, 2017 6:06 am |
Re: Komodo 10.4 released |
Larry Kaufman |
Sat Mar 18, 2017 4:34 am |
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daniel jose |
Sat Mar 18, 2017 7:35 am |
Re: Komodo 10.4 released |
daniel jose |
Sat Mar 18, 2017 8:20 am |
Re: Komodo 10.4 released |
Jesse Gersenson |
Sat Mar 18, 2017 12:20 pm |
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Mark Lefler |
Sat Mar 18, 2017 1:06 pm |
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Juan Molina |
Sat Mar 18, 2017 1:12 pm |
Re: Komodo 10.4 released |
daniel jose |
Sat Mar 18, 2017 1:19 pm |
Re: Komodo 10.4 released |
Jon Fredrik Åsvang |
Sat Mar 18, 2017 1:26 pm |
Re: Komodo 10.4 released |
Larry Kaufman |
Sat Mar 18, 2017 3:31 pm |
Re: Komodo 10.4 released |
Brian Smith |
Sat Mar 18, 2017 4:10 pm |
Re: Komodo 10.4 released |
Larry Kaufman |
Sat Mar 18, 2017 6:11 pm |
Re: Komodo 10.4 released |
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Sun Mar 19, 2017 12:13 pm |
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Sun Mar 19, 2017 3:33 pm |
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Andrey Chilantiev |
Sun Mar 19, 2017 6:21 pm |
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Sun Mar 19, 2017 10:02 pm |
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Kevin Plant |
Sun Mar 19, 2017 10:35 pm |
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Carl Bicknell |
Mon Mar 20, 2017 10:50 am |
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Kevin Plant |
Mon Mar 20, 2017 11:30 am |
Re: Komodo 10.4 released |
Jesse Gersenson |
Mon Mar 20, 2017 1:21 pm |
Re: Komodo 10.4 released |
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Mon Mar 20, 2017 1:56 pm |
Re: Komodo 10.4 released |
Larry Kaufman |
Mon Mar 20, 2017 3:26 am |
Re: Komodo 10.4 released |
Lyudmil Tsvetkov |
Mon Mar 20, 2017 8:09 am |
Re: Komodo 10.4 released |
Jon Fredrik Åsvang |
Mon Mar 20, 2017 8:47 am |
Re: Komodo 10.4 released |
Mark Lefler |
Mon Mar 20, 2017 2:14 pm |
Re: Komodo 10.4 released |
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Mon Mar 20, 2017 6:37 pm |
Re: Komodo 10.4 released |
Jon Fredrik Åsvang |
Mon Mar 20, 2017 7:26 pm |
Re: Komodo 10.4 released |
Larry Kaufman |
Mon Mar 20, 2017 8:28 pm |
Re: Komodo 10.4 released |
Carl Langan |
Mon Mar 20, 2017 11:10 pm |
Re: Komodo 10.4 released |
Jon Fredrik Åsvang |
Tue Mar 21, 2017 4:04 am |
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Frank Quisinsky |
Wed Mar 15, 2017 5:33 am |
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Wed Mar 15, 2017 5:43 am |
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Frank Quisinsky |
Wed Mar 15, 2017 5:56 am |
Re: Combination: K10.4 /Kaufmann Repertoire for B&W |
Carl Lumma |
Thu Mar 16, 2017 6:57 am |
Re: Combination: K10.4 /Kaufmann Repertoire for B&W |
Larry Kaufman |
Thu Mar 16, 2017 3:46 pm |
Re: Komodo 10.4 released |
Gerald Grimsley |
Thu Mar 16, 2017 10:11 am |
Re: Komodo 10.4 released |
Larry Kaufman |
Thu Mar 16, 2017 3:50 pm |
Re: Komodo 10.4 released |
Michael B |
Thu Mar 16, 2017 11:25 pm |
Re: Komodo 10.4 released |
S.Taylor |
Mon Mar 20, 2017 8:16 pm |
Re: Komodo 10.4 released |
Mark Lefler |
Mon Mar 20, 2017 8:18 pm |
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