About the same way as Jules Verne got its detailed description of the Lunar surface: sitting behind a desk doing some educated guessing.
This is exactly my point. If all he is doing is using an educated guess than he has to have a logical reason why he believes his educated guess to be correct.
The following pieces have the following activity. He has been showing them as spots for the pieces to move. Yet the moves also show the amount of squares which are being influenced.
Queen = 27
Chancellor(powers of the rook and knight) = 22
Archbishop(powers of the bishop and knight) = 21
Centaur = 16
Rook = 14
Bishop (bound by a single color) = 13
Knight = 8
Pawn = 2
In truth the Chancellor and the ArchBishop would be seen as fairly equal with each other.
Which might be the reason why on Capablanca Chess Board 10x8 board.
They only have 1 Archbishop on the queen side and 1 Chancellor on the king side.
If they believed their values were much greater than each other they would have a pair of 2 I believe. Such as 2 rooks, 2 knights, 2 Archbishops, 2 Chancellors etc.
I believe they only gave 1 of each becuase they both balanced out to be equal.
The values I would give to each piece would be the following values:
Queen = 9
Chancellor(powers of the rook and knight) = 8
Archbishop(powers of the bishop and knight) = 8
Centaur = 6
Rook = 5
Bishop (bound by a single color) = 3
Knight = 3
Pawn = 1
Well, based on the facts that:
- the side missing the f-Pawn in the FIDE setup (classical Pawn odds) scores 35%
- If, in addition, his opponent's Queen was replaced by an Archbishop it rises to 47%
- If, instead his opponent's Queen is replaced by a Centaur, this rises to 58%
- If one side gets a (3rd) Rook in stead of Queen, the other gets a Centaur and one of his Knights deleted, latter scores 46%
- If the latter gets an Archbishop in stead of a Centaur, he scores 49%
(all measuered in 200-400 games), I would say the evidence indicates the Archbishop is about 8 (close to Q-P or R+N), and the Centaur about half a Pawn weaker (7.5). That would give the following list
Pawn = 1
Knight = 3
1st Bishop = 3
2nd Bishop = 3.50
Rook = 4.75
Centaur = 7.50
ArchBishop = 8.00
Chancellor = 8.40
Queen = 9.00
I am not sure what you mean by 'research'.