As the topic said, who is better? I know that 2 metal pieces are better than one major piece. And 2 Lances/Knights are better than one metal piece. But what about one metal piece and one Lance/knight? How much are they worth comparing to the major piece? And whether you should exchange them or not.
Of course, after saying all this, I know that the values are not so absolute and largely depending on the circumstances most of the time, but I just want to know the average. What are your opinions? Who is better?
You can include situations such as exchanging a Bishop with a Gold/Silver and a Knight/Lance, and then get to promote your Rook to Dragon king in the pieces' values analysis and such thing. Anything is fine. I just want to know what the players here rank them on average (Not knowing the exact board positions).
You may have already read this page, but I think you may find it helpful.
Absolute valuations vary slightly from person to person, even among professional players. However, I can clearly agree with the common sense that Gold/Silver is more valuable than Knight/Lance, especially in the early stages of the game.
A bishop for a gold can be an excellent trade in attacking certain castles, so such trades can be very tempting even without extra compensation in terms of capturing a minor piece. However, simple bishop drops to promote in enemy camp can make it nearly as valuable as an unpromoted rook. You need to properly assess potential for basic tactics like drops in order to make sacrifices, or even just even piece trades. If equal piece values are traded but you have no good drops in response to theirs, trading would be a disadvantage.
Sorry @lovecall , I didn't read your question properly. To your question about "1 Bishop/Rook vs 1 Gold/Silver + 1 Knight/Lance", first of all, I think that in an exchange with a Rook, taking a Rook is often more valuable because you can expect the rook to drop into the opposite camp and take more pieces.
In an exchange with a Bishop, I think taking two pieces is often more valuable than taking a Bishop. When considering an attack, it is simply better to have more pieces, and it is easier to make the Knight in your hand function as a foothold for the attack. As @Sean03 saying, Bishops are strong if they are promoted, but if not, there are many situations where Gold or Silver will work more effectively. Also, Bishop is a piece that are more likely to rebound on you if taken by your opponent in the attacking process (The same thing is relatively true for Gold/Silver).
It's just my sense.
@larkspur That is an interesting opinion. Then, would the valuation of exchanging a rook for the 2 pieces remains the same if the side losing a rook also gets to 1) Promote an Uma 2) Promote another Ryuuo 3) Promote a pawn 4) Promote any other kind of pieces
For 3), I think it is only possible when the rook is on the promotion file getting threaten to be captured in the next move, and then the pawn is on the one file above that, but of different column. Or the rook is on the promotion file getting threaten to be captured in the next move, and then the pawn is on the two or three files above the rook, and of the same column (Which is much rarer). That might be the only cases of how an exchange of a rook vs a metal piece + a minor piece + getting a safe promoted pawn could occur. Otherwise, I believe the promoted pawn would be captured in the next move or u would not need to exchange the Rook for the two pieces in the first place (Can just capture with the pawn first).
For 4), kind of the least valuable promotion, but still, would this little change change the valuation?
I would like it if u analyse whether your valuation would be reversed in cases 1) to 4)? Of course, assuming u do not know the exact board position. All possible board positions that make the situations occur count.
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