Search found 53 matches

by RichV
Sun May 05, 2019 4:10 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Wow! You and HGM never cease to amaze me with your chess and chess programming knowledge. I went to the Xboard Betza site and spent a while there being totally confused, but I did eventually begin to understand Table 1. The 5x5 square of 16 positions was what I used to try to make my Archers and Cat...
by RichV
Sun Apr 28, 2019 3:27 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Evert, Nice to know that a topological defect only applies to irregular changes in the direction of a 3D objects lattice (which I assume is the same thing as an object’s wireframe drawing). Speaking of wireframes, I created an AutoCAD drawing of the wireframe for the CirSquare 96 board. To color the...
by RichV
Sat Apr 27, 2019 12:49 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Harm, thanks for your latest comments. Note that even an L description with only orthogonal steps (i.e. through cell edges) of the Knight move is ambiguous if you don't specify whether the short or long leg of the L has to be taken first. In the picture on your website you seem to mix these two move...
by RichV
Sat Apr 27, 2019 12:46 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Evert. I will definitely do some research in the chessvariants.org site. I posted my game there in 1999 under the name Round Table Chess. I entered into the Large Variant 99 Contest, but not enough judges played it for it to qualify to win anything. However, it did receive the highest score in sever...
by RichV
Thu Apr 25, 2019 8:36 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Thanks for correcting me on the name of the piece that moves one space diagonally and then one space orthogonally. In its footnote, Wikipedia gave two examples of alternate move descriptions for the Knight, the first being diagonally then orthogonally and the second being orthogonally then diagonall...
by RichV
Thu Apr 25, 2019 2:47 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Thanks Harm, Daniel, and Evert, You guys are way over my head in programming land. I envy your command of electronic game programming. I wish that I was even half as knowledgeable/intelligent as any of you. From the discussion, so far it seems that my game is facing two dilemmas (or difficulties/pro...
by RichV
Wed Apr 24, 2019 11:36 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Daniel, I don't understand how you see my CirSquare 96 chess board as being a sphere. It is a 2D, single-plane circular board with a square board merged into its center. Trying to inflate the board into a spherical shape would double the number of squares from 96 to 192 with two identical halves of ...
by RichV
Wed Apr 24, 2019 11:19 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

An "L" shaped move for a Knight is how the local Chess Academies teach it. They say the Knight moves 1 square across a side then changes direction and moves straight 2 squares across sides, or it can first move straight across 2 squares across sides then change direction and move 1 square across sid...
by RichV
Wed Apr 24, 2019 6:16 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

I have been rooting around in my Zillions of Games script for Castle Siege Chess to see how I avoided the "duplicates of moves" potential problem that might occur with Jocly. It will be easier for me to explain what I did if I know that you are familiar with Zillions scripting. Have you ever scripte...
by RichV
Tue Apr 23, 2019 3:42 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess engines for circular chess boards
Replies: 32
Views: 8317

Re: Chess engines for circular chess boards

Thanks Evert. Great comments. It took 5 attempts before I finally came up with the easiest way to annotate spaces on the CirSquare 96 board. The board is divided horizontally into two halves - North and South. Each half is numbered radially just outside the outer ring. The North half is numbered Na ...