V. Reinhart wrote on Wed, Nov 8, 2017 06:56 AM UTC:
On a 10x8 board with all other normal chess pieces present, and using HGM's Fairy-Max software I once did conclude (verify HGMs earlier work) that the guard is worth almost exactly the same as a bishop, and slightly superior to a knight.
I've always heard (but never confirmed) that bishops have slightly higher value on larger boards, because they can slide quickly across whereas a guard cannot.
If bishops are worth more on a 10x8 board (compared to 8x8), then a guard (non-royal king) is equal to this superior value (because they were equal even when played on a 10x8 board).
This makes me think that a guard might be worth slightly more than a bishop on an 8x8 board, although I've never confirmed it.
On a 10x8 board with all other normal chess pieces present, and using HGM's Fairy-Max software I once did conclude (verify HGMs earlier work) that the guard is worth almost exactly the same as a bishop, and slightly superior to a knight.
I've always heard (but never confirmed) that bishops have slightly higher value on larger boards, because they can slide quickly across whereas a guard cannot.
If bishops are worth more on a 10x8 board (compared to 8x8), then a guard (non-royal king) is equal to this superior value (because they were equal even when played on a 10x8 board).
This makes me think that a guard might be worth slightly more than a bishop on an 8x8 board, although I've never confirmed it.