01-25-2021, 03:15 PM
I thought I give it a try at implementing three-player chess from your (and my) wish list. So far it seemed straightforward, since ordinary chess basically just needs orthogonal and diagonal sliding, plus the knight walk. My current status (no pawns yet, no castling) is attached. My finding is that its actually not that straightforward so slide, well, straight forward. Basically, I read this presentation by Cameron:
http://ludeme.eu/outputs/qmul-board-design-1.pdf
So there it says:
But as you can see for the rook, it does not cross to the left half, although there is a shared edge. The queen jumps across another cell, without there being a shared edge. Bishop and queen follow the diagonals only the bit. And the knight... seems somehow lost. I assume that is because these lines are not really straight.
http://ludeme.eu/outputs/qmul-board-design-1.pdf
So there it says:
Quote:Orthogonal: Share an edge
Diagonal: Cells in line through a vertex
But as you can see for the rook, it does not cross to the left half, although there is a shared edge. The queen jumps across another cell, without there being a shared edge. Bishop and queen follow the diagonals only the bit. And the knight... seems somehow lost. I assume that is because these lines are not really straight.