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Wormhole Chess. When a piece leaves a square, it `folds' together. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]

Chuck wrote on Fri, Jun 28, 2002 05:11 AM UTC:

Is the position in the diagram shown really checkmate?  Can't the white
king escape the check with Kc3, or am I missing something?

Jeremy Good wrote on Mon, Feb 27, 2006 03:45 PM UTC:Excellent ★★★★★

Chuck, pieces can't change their initial direction when in voids. They must land on the opposite side in the same direction as they entered the voids and that is why the white king can't move to c3. Wormhole Chess is an ingenious game, but the most difficult thing is forcing yourself to think of pieces as only taking one specific route to an end square. For example, one has to think of the knight as always travelling one orthogonal plus one diagonal.

Chuck wrote on Tue, Mar 14, 2006 05:55 PM UTC:

I'm still not following you. The white king sits on e1. If it moves in the direction of d2 (which is a void), without changing direction, it ends up on c3, right? The king doesn't have to change it's initial direction--it moves to the upper left from the start, and ends up on c3 without changing direction. c3 is not under attack from a black piece, unless I'm missing something, so it's not checkmate as far as I can tell.

🕸💡📝Fergus Duniho wrote on Tue, Mar 14, 2006 11:32 PM UTC:

You're right. The King can move to c3. I don't know how I missed this. I have now updated the example.

Joe Joyce wrote on Sat, Mar 18, 2006 03:45 AM UTC:Excellent ★★★★★

Nice idea very nicely done. Fine piece choices. Have to rate it excellent.

Andy Maxson wrote on Wed, Feb 21, 2007 01:08 AM UTC:Average ★★★

This game looks interesting but isnt the queen as strong as the rooks?

🕸💡📝Fergus Duniho wrote on Wed, Feb 21, 2007 01:48 AM UTC:

If the game had Queens and Rooks, which it does not, the Queens would be stronger than the Rooks, because they could move diagonally in addition to moving as Rooks.

Andy Maxson wrote on Wed, Feb 21, 2007 01:53 AM UTC:Good ★★★★

What I meant was isn't your rook substitute as strong as your queen substitute?

Andy wrote on Wed, Feb 21, 2007 02:30 AM UTC:Excellent ★★★★★

Wormhole Chess is great variant -- simple concept yields deep new strategy. Much much better game than most games posted here now that are exercises in using as many awkward different pieces on as many awkward different boards as possible. I rate murray lion slightly stronger than champion, wizard, which are about equal and slightly stronger than knight.

🕸💡📝Fergus Duniho wrote on Wed, Feb 21, 2007 03:37 AM UTC:

The Champion generally has greater mobility, but the Lion has greater capturing power, and in some situations, especially as the board shrinks, this can give it greater mobility too. So I would say that the Lion is more powerful than the Champion.

kuyan judith wrote on Sat, Apr 5, 2008 07:18 AM UTC:

A game where it matters in what order the components of leaping moves happen, without having any lameness to the leapers.

David Paulowich wrote on Sat, Sep 20, 2008 12:53 AM UTC:

The previous comment raises an interesting point, and I have copied it into this thread.

Julian wrote on Sat, May 16, 2015 02:05 PM UTC:Excellent ★★★★★

I wish that there was a "Leaper Chess" with this board layout and pieces, but without the wormholes. That could be interesting.

Kevin Pacey wrote on Thu, Mar 1, 2018 09:38 AM UTC:Excellent ★★★★★

Another cool concept for a variant from Fergus.

Erik Lerouge wrote on Sun, Oct 28, 2018 12:40 PM UTC:Excellent ★★★★★

I don't find any information about Pawn promotion in Wormhole Chess. Do Pawns promote on the last square they can reach, whatever the rank (for example if there are no squares anymore vertically in front of the Pawn, beyond the wormhole, nor diagonally where an opponent's piece could land)? Or do they only on the last rank, meaning that if a Pawn can't reach the 8th rank anymore, because of the disappearing of squares, he can't promote anymore?

This comment gives me the opportunity to rate this game as 'excellent'. Really great concept and gameplay. It would be great to have a larger variant of Wormhole Chess, 10x10 or even 12x12.

🕸💡📝Fergus Duniho wrote on Sun, Oct 28, 2018 04:16 PM UTC:

As I've programmed the game for Zillions-of-Games, promotion is possible only when a Pawn reaches the last rank by capturing a piece.