11301 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
Does anyone know of a chess variant where periodic boundary conditions are used?
No, but I can make one!
I certainly hope not!
Of course, it makes sense only for rows. For example, 1. b3 b6 2. Bc1-h4 would be a valid opening.
I sincerely hope you come down soon.
Why would this be such a bad idea?
For all I know, it's a wonderful idea (if only I understood it).
1. Qxe8 (wrapping around through the bottom) wins by force.
It's only a cylinder I think
What is a periodic bundary condition?
I guess that gets to the heart of the matter, yes...
Maybe they lock the door to the room every now and then so you can't go to the bathroom?
Periodic boundary conditions mean that rows wrap around and it is legal to move from column a to h, and back. You can move off the edge of the board and enter on the other side. So, for example, if your bishop is on a3, it can move to h4, g5, f6, etc.. A knight on a3 could additionally move to h5 and g4. Only horizontal wrapping makes sense, of course.
The term periodic boundary conditions comes from physics, and you can read the introduction on Wikipedia to get an idea how it is used there. In effect, it would make the board infinitely long (horizontally), with the position repeated every 8 columns. No corners and no absolute center squares.
Here is an illustrative example of a valid periodic game: 1. b3 e5 2. Bc1xd8, where the bishop goes Bc1-b2-a3-(wraps around the periodic boundary on the edge of the board)-h4-g5-f6-e7-xQd8.
O, I get it. So sort of like those super unrealistic plane flying games, where your plane goes off the screen on one end and comes out on the other end?
It's a very interesting idea, despite my joke about 1.Qxe8#. I wish I knew people in the real world who played chess so I could try a game.
The weatherman said it had something to do with colliding fronts.
Exactly. A good, down to Earth illustration.
Cylinder Chess, where the a-file connects in the same orientation to the h-file, is one example. The Fairy-Max engine can play this under WinBoard.
Another example is one particular brand of Circular Chess. This is usually described as Chess on an annulus of 4 squares radially, and 20 squares along the circumference, with complex rules for crossing through the hole in the center. Similar to the board depicted here:
If you think about it, this is equivalent to a 10x8 Moebius board, where you connect the left and right edge of the board in reverse order (rank 1 to rank 8, 2 to 7 etc.)
Can chess players have bad days?
by 3point14times2 a few minutes ago
If you could combine two chess pieces powers what would the two pieces be???????
by Who-Gives-A-Fork 2 minutes ago
Daeth Opining: The Future of Chess?
by Chessman265 2 minutes ago
ღ HOW to make a POPULAR forum thread? ღ
by macer75 6 minutes ago
0-1: Tarrasch Defense, Schara Gambit
by satxusa 6 minutes ago
Chess rating system
by learningthemoves 8 minutes ago
by MichaelPorcelli 10 minutes ago
Who is better Paul Morphy or Magnus Carlsen
by batgirl 12 minutes ago
Sexism in Chess ...
by Wilbert_78 12 minutes ago
Can Anyone Become Grandmaster?
by RC-1140 13 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2013 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!