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Re: Piece values
Posted: Fri Jun 28, 2019 10:23 am
by Kevin Thurlow
"(including, of course, why the chess king is to be valued at 2 notional pawns!)"
I always thought it was mobility.
Re: Piece values
Posted: Tue Jul 09, 2019 12:39 pm
by Joey Stewart
John McKenna wrote: ↑Thu Jun 27, 2019 7:18 pm
We all know that the interrogation will produce the following answer -
8 (pawns) + 6 (2 knights) + 7 (2 bishops) + 10 (2 rooks) + 9 (queen) + 2 (king) = 42!
We need an "upvote" feature for posts like this. Good one
Re: Piece values
Posted: Tue Jul 09, 2019 5:49 pm
by John McKenna
Thanks, Joey.
However, others would then want a 'thumbs down' button.
Best if we leave thumbs twiddling...
Kevin Thurlow wrote: ↑Fri Jun 28, 2019 10:23 am
"(including, of course, why the chess king is to be valued at 2 notional pawns!)"
I always thought it was mobility.
And I always thought it was a lack of nobility.
Re: Piece values
Posted: Wed Jul 10, 2019 9:28 am
by Michael Farthing
I always thought there was something fundamentally wrong with the Game.
Re: Piece values
Posted: Wed Jul 10, 2019 12:01 pm
by John McKenna
There's nothing about a flawed masterpiece that can't be attributed to its creator(s).
Re: Piece values
Posted: Wed Jun 24, 2020 8:20 am
by Nick Burrows
In "Applying logic in Chess" by IM Erik Kislik, he has a chapter on piece values. He says that after years of testing by Stockfish and Komodo et al, the settled upon values used by the engines is:
Pawn = 1
Knight = 3.45
Bishop = 3.55
Rook = 5.25
Queen = 10
Bishop Pair = +0.5
Safe King in Endgame = 4
Early in game Rooks have less value and increase as game progresses. A single rook is worth more than 5.25.
Re: Piece values
Posted: Wed Jun 24, 2020 9:28 pm
by Steven DuCharme
My formula is number of reachable squares equals piece value points. A checking piece is infinity/2 and a mating piece is infinity/1
Re: Piece values
Posted: Sat Dec 26, 2020 1:14 am
by MJMcCready
soheil_hooshdaran wrote: ↑Wed Apr 18, 2018 12:08 pm
Hi.
What's the basis for assigning numerical values 1-3-5-9 to pieces?
Once you go ELO2000 and up you'll see the numerical values are relative to the stage of the game as rooks are usually the worst pieces on the board in the opening, and not that much use in the middle game usually, but in the endgame then their true value can be seen. On move one the only things that have any value at all are pawns and knights because only they can move.
Re: Piece values
Posted: Wed May 19, 2021 10:30 am
by Kevin O'Rourke
Everyone knows that the Knight is better than the Bishop.
Re: Piece values
Posted: Wed May 19, 2021 10:45 am
by MJMcCready
Not in endgames where there are pawns on both sides of the board, then a knight is usually worse.
Re: Piece values
Posted: Wed May 19, 2021 11:56 am
by John Upham
Nick Burrows wrote: ↑Wed Jun 24, 2020 8:20 am
In "Applying logic in Chess" by IM Erik Kislik, he has a chapter on piece values. He says that after years of testing by Stockfish and Komodo et al, the settled upon values used by the engines is:
Pawn = 1
Knight = 3.45
Bishop = 3.55
Rook = 5.25
Queen = 10
Bishop Pair = +0.5
Safe King in Endgame = 4
Early in game Rooks have less value and increase as game progresses. A single rook is worth more than 5.25.
Does EK discuss the changing value of a pawn as it progresses from the 2nd to the 7th rank?
Re: Piece values
Posted: Wed May 19, 2021 5:38 pm
by MJMcCready
I don't think we will ever see that happen which draws into question the whole numerical value system. Even if we factor in time controls its tricky. What about blitz games where succumbing to knight forks is harder to avoid.
Re: Piece values
Posted: Thu May 20, 2021 8:59 pm
by Nick Burrows
John Upham wrote: ↑Wed May 19, 2021 11:56 am
Does EK discuss the changing value of a pawn as it progresses from the 2nd to the 7th rank?
He has a paragraph saying in certain positions a pawn on the seventh rank is worth at least 3 pawns, but trying to work out when its worth 2 pawns etc is not worthwhile.
A fast/dangerous/well supported passed pawn is likely more valuable than an extra pawn for the other side
Re: Piece values
Posted: Fri May 21, 2021 7:42 pm
by MJMcCready
It's all relative, we could be here all day. Trying to evaluate the numerical value of a good knight over a bad bishop in an endgame is also nigh on impossible.
Re: Piece values
Posted: Wed May 26, 2021 4:49 pm
by soheil_hooshdaran
Kevin O'Rourke wrote: ↑Wed May 19, 2021 10:30 am
Everyone knows that the Knight is better than the Bishop.
Knights are better than bishops if the position is closed/semiclosed, pawns are on one flank, or they have advanced outposts