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Parity Chess. Chess on a 12x8 board with Champions and FADs added.[All Comments] [Add Comment or Rating]
💡📝Kevin Pacey wrote on Sat, Dec 1, 2018 04:14 AM UTC:

I'd estimate the values for this 12x8 game as: P=1; N=3.06(or 3 approx.); B=3.75; FAD=CH=3.86(or 3.75 approx.); R=5.5; Q=R+B+P=10.25; K's fighting value=2.67. The variant's name and design was inspired by my thought that two thirds of the pieces (not counting pawns) seemed relatively close in value to me. Note that a Champion plus a K can force mate vs. lone K (on 12x8) in 37 moves maximum - Dr. H.G. Muller, citing endgame tables, which was another inspiration for this variant's design. Fast castling rules are used in this variant to try to facilitate king safety and development. Note that all the pawns are protected in the setup.

[edit: An idea of mine for a mutator variant of Parity Chess some may wish to try (which would be called Fairyland Chess) would be to just replace all the FAD pieces in the setup with Frogs. A frog can move like threeleaper (leap 3 cells by rank or file) or it can move like a ferz (i.e. one cell diagonally). On a 12x8 board as in this game, I'd tentatively estimate a frog's value to be 3.33(or 3.25 approx.). See my Waffle Chess invention's PBM (preset page) Comment thread for more (purely academic/moot) details on this mutator idea.]

[edit2: An idea of mine for a mutator variant of Fairyland Chess some may wish to try (which would be called Wide Lieutenant Chess) would be to just replace all the CH pieces in the setup of Fairyland Chess with Lieutenants (known piece type from Spartan Chess). Lieutenants leap 1 or 2 cells diagonally, or they can (but without making a capturing move) step 1 cell in either direction on their rank. On 12x8 I'd tentatively estimate a lieutenant's value to be 2.56(or 2.5 approx.).]

[edit3: Here's a CV idea of mine that could be called Kirin-Spiel, which I'll study at leisure (it has same fast castling and pawn rules as my Wide Chess):]

[edit4: Here's a CV idea of mine that could be called Lancer-Spiel, which I'll study at leisure (it has same fast castling and pawn rules as my Wide Chess):]

[edit5: Here's a CV idea of mine that could be called Horse-Wazir-Spiel, which I'll study at leisure (it has same fast castling and pawn rules as my Wide Chess):][edit6: I'm not liking these 3 diagrammed CV ideas so much just now - perhaps these are all worse versions of {especially an Accelerated form of} Courier-Spiel:]

[edit7" Here's a CV idea of mine that could be called Warmachinewazir-Spiel, which I'll study at leisure (it has same fast castling and pawn rules as my Wide Chess) - an alternate variant idea is to replace the DWs with Waffles (WAs) and call it Waffle-Spiel:


💡📝Kevin Pacey wrote on Tue, Jan 17, 2023 01:13 AM UTC:

@ Fergus:

In the following game log, Joe chose to take the Black side, but among other things it shows him as playing White:

https://www.chessvariants.com/play/pbm/play.php?game=Parity+Chess&log=panther-joejoyce-2023-15-287


🕸Fergus Duniho wrote on Tue, Jan 17, 2023 05:42 PM UTC in reply to Kevin Pacey from 01:13 AM:

The same thing happened to me. The reason why is that the preset lists the sides as "Black White" instead of the usual value "White Black". Although his pieces are white, and he is moving first, it says he is playing Black. This is because the name of Black is being used for the first player in the preset. The author of the preset should correct this to avoid confusion.


💡📝Kevin Pacey wrote on Tue, Jan 17, 2023 05:59 PM UTC:

I switched back to 'White Black' for this and some other presets I authored that had never been play tested. I guess I copied part of someone else's preset(s) (in some cases) where they had Black moving first for some reason.

I'll delete my log with the bug vs. Joe (the fix I made didn't affect our game), then issue him a new personal invitation.


🔔Notification on Sat, Jan 20 07:53 PM UTC:

The author, Kevin Pacey, has updated this page.


💡📝Kevin Pacey wrote on Sun, Mar 24 06:20 PM UTC in reply to Kevin Pacey from Sat Dec 1 2018 04:14 AM:

'Fairyland Chess' is a 2018 idea I had for a name for a CV idea I was unsure of. It still is unpublished, until if and when I might do so. I'm not sure if it would be too close to 'Fairy Land', another inventor's independent idea that's now going through the publishing stages - if so, I'd need to change the name of mine, now.

P.S.: On message boards I use in Canada, it is possible to search for keywords or phrases that are contained in comments or blog entries - don't know if that would be too hard to arrange to implement similarly, for CVP's database.


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