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This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2016-05-01
 By Greg  Strong. Backlash. Play on two boards, but capturing on one board leads to a backlash on the other! (8x8x2, Cells: 132) [All Comments] [Add Comment or Rating]
Kevin Pacey wrote on 2018-01-02 UTC

Now that I've been playing some games of this variant, I'm wondering if it's nearly always advantageous (in the opening at least) to trade a bishop for a knight (as a B is demoted to just a N, but a N is demoted all the way to a P). Perhaps not, at the least if the opponent ever gets the chance to make the same sort of transaction himself, ideally sooner rather than later, on one of the two boards.


Advantageous or not, this question re: B for N transactions led me to think that there might be at the least 5 interesting versions of this variant that might be worth trying out, i.e.:

1) A two 8x8 boards Backlash-like variant that has archbishops replacing the bishops (demotion order would then be from Q to A, from A to R, from R to N and from N to P);

2) and 3) Backlash-like variants of 9x8 Symmetric Chess, with and without archbishops replacing the bishops;

4) A Backlash-like variant of 10x8 Janus Chess;

5) A Backlash-like variant of 10x8 Capablanca Chess (demotion order would then be from Q to C, from C to A, from A to R, from R to B, from B to N and from N to P).

Kevin Pacey wrote on 2017-11-26 UTCExcellent ★★★★★

A cool looking game!

I'm now wondering if it's feasible to even do a non-rules enforcing preset for 2 player Bughouse on Game Courier (i.e. it would be two players controlling an army on each of two boards within a diagram, but only one clock per player unlike over the board bughouse even when played by two), as the two sides would each have a White and a Black army in front of them on their left or right side respectively. [edit: perhaps merely being restricted to just one clock per side would make such a bughouse variant preset on Game Courier unworkable, as a player might just move on one board only, when in trouble on the other board.]

Fergus Duniho wrote on 2016-05-01 UTC
<P>I'll wait for a fully functional preset. Since you have programmed Chessv, I'm sure you can figure it out. In case you missed them, I'll refer you to the two tutorials I recently wrote, listing them in the order I wrote them:</P> <UL> <LI><A HREF="/play/pbm/legalmoves.html">How to Display Legal Moves in Game Courier - A Tutorial</A></LI> <LI><A HREF="/play/pbm/enforcingrules.html">How to Enforce Rules in Game Courier - A Tutorial</A></LI> </UL> <P>There is also this one, which I wrote a few years ago. It won't touch on displaying legal moves, since that's a more recent development, but it may still be useful.</P> <UL> <LI><A HREF="/play/pbm/tutorial.html">GAME Code Tutorial</A></LI> </UL> <P>I did take a look at your preset, and one thing it needs to handle besides the usual things covered in the tutorials is to prevent a player from moving twice on the same board during his turn.</P>

Michael Nelson wrote on 2016-05-01 UTC
The rules concerning the pocket squares are reminiscent of the piece in hand rules of my own Wizards' War (2002). I haven't found anything earlier on this site, but prior art may well exist. I would be the last person to claim any kind of copyright--and the idea works extremely well in this game.

Michael Nelson wrote on 2016-05-01 UTCExcellent ★★★★★
A pleasing blend of several variant ideas into a unified game, it should play very well.

Greg Strong wrote on 2016-05-01 UTC
Thanks, Fergus.  Your point re: Mortal Chessgi is well taken.  I will update the description accordingly.

I have a GC Preset programmed.  It automates the most important things - players can input both moves with the mouse as in Marseillais Chess, and it will automatically handle moving the demoted captures to the appropriate pocket square.  Unfortunately, for moves involving castling, promotion, or en passant, you have to type in the whole move.  This is preset ver.1.  Hopefully I'll be able to improve on it.  I have an open invitation if you're game :)

Fergus Duniho wrote on 2016-05-01 UTC
While Kamikaze Mortal Shogi may have inspired the demotion in this game, it would be more accurate to compare it to Mortal Chessgi, whose order of demotion is the same. It also has better sound effects if you play it on Zillions-of-Games. It looks like an interesting game. If you get it programmed, I would like to try it out, since it is like a cross between Bughouse and Mortal Chessgi.

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