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Comments by DougChatham
You may find this part of the Chess Variant Pages useful:
<a href='http://www.chessvariants.org/chess4kids.dir/c4c-intro.html'>Chess Rules for Kids</a>

11? No. See the first question in the <a href='http://www.chessvariants.org/d.chess/faq.html'>Chess FAQ</a>

On page 21 of his book Popular Chess Variants, D. B. Pritchard writes, 'The en passant rule has seen change. Modern players allow it only when the pawn advance formed the second move of a turn.'
This implies that the opponent cannot capture two men with one en passant move.

Tony,<p>
Why not have your pin piece go from its 12 x 12 corner to a second (i.e. different from the corner you're already using) 10 x 10 corner back to the original 8 x 8 corner?

Move 3 in your sequence isn't valid. A pawn cannot leap over another piece.

Yes, that is correct. If you have a friendly Queen next to your King at the end of your turn and your King is not in check, then you have won by marriage.<p>
Charles, your comment has made me realize that rule 3 needs a slight correction to include marriage by pawn promotion.

If there are 35 mutable rules (and 209 is still in effect), the player still has the option to propose transmuting a rule to immutable status or to propose repealing a mutable rule.

GEOFX_BBFC,<br>
<p>It looks like the last part of your list was cut off. Your list has only 98 solutions, but there are 128 solutions to the '9 Queens Problem' <p>You may find the following PDF files interesting:<ul><li><a href='http://people.moreheadstate.edu/fs/d.chatham/N+1QP.pdf'>The N+1 Queens Problem</a></li><li><a href='http://people.moreheadstate.edu/fs/d.chatham/queenssep.pdf'>The Queens Separation Problem</a></ul>

Another CV with self-modifying rules is Nomic Chess, an attempt to combine Nomic, Peter Suber's game of self-amendment, and Ralph Betza's Chess for Any Number of Players.

In your version of Bachelor Chess, the Bishops can only reach half the squares --- they both start on the same color. Is this a bug or a feature?
I wonder how Bachelor Chess compares with <a href='http://www.chessvariants.org/42.dir/bachelor.html'>Bachelor Chess</a>. :-)

An example of a situation where promoting to queen gives a stalemate while promoting to rook wins can be found at <a href='http://www.chessvariants.org/d.chess/pawnfaq.html'>http://www.chessvariants.org/d.chess/pawnfaq.html</a>, near the end of the answer to the question 'To what pieces can a pawn promote?'

A game on a board this small deserves the shortest possible name. I suggest IO :-)

Earlier, someone published a side challenge to produce a variant with exactly 10 squares. I have another side challenge: the Obfuscated 10 -- Make a chess variant where the number 10 plays significant but <b>hidden</b> roles. At least one such role should be something not shared by other chess variants, so 'played by 10-fingered beings' doesn't count.
A modest suggestion for an extra challenge:
<h3>The Hidden Ten</h3>
<p>Make a chess variant where the number 10 plays only non-obvious, 'hidden' roles. At least one of these roles should be something not shared by other chess variants --- so 'played by creatures that use a decimal number system' isn't sufficient for this challenge.</p>
Yes. See <a href='http://www.chessvariants.org/link2.dir/tile.html'>Tile Chess</a>.

No. See the answer to 'Can kings stand near each other?' in the Chess FAQ page at <a href='http://www.chessvariants.org/d.chess/faq.html'>http://www.chessvariants.org/d.chess/faq.html</a>
I see nine entries so far. Perhaps the editors are fighting over who gets to be the lucky 10th entry. :-)

One of the rules of this contest is that no changes to a submission are allowed after April 30. Now that some of us can edit our own pages, will that restriction still be enforced?
DOB: 06/05/1968, so I'll wait a few more days before answering :-)


Announcing check is not required but merely polite. See the <a href=' http://www.chessvariants.org/d.chess/matefaq.html'>mate, checkmate, and stalemate FAQ page</a>.

Each pawn may move two squares forward on its first move. See the <a href='http://www.chessvariants.org/d.chess/pawnfaq.html'>Pawn FAQ</a> for answers to questions about the pawns.
That's question 1 on the <a href='http://www.chessvariants.org/d.chess/faq.html'>Chess FAQ</a> page. The answer is 42...er...50, with some details.
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