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Standard Game

		A game is "Standard" if the expected duration of the game is 15 minutes or
		more.  "Expected duration" is determined by a formula that takes into account
		both the Start time and the Increment (Inc) value.  Here is the formula:

Expected duration = (Start + Inc*2/3)

Blitz Game

	A game is "Blitz" if the expected duration of the game is between 3 and 15
	minutes per player.  "Expected duration" is determined by a formula that takes
	into account both the Start time and the Increment (Inc) value.  Here is the
	formula:

Expected duration = (Start + Inc*2/3)

	Thus, a Blitz game is one that is expected to last between 3 and 15 minutes
	for each player (or from 10 to 30 minutes combined).  Lightning games are
	those with expected durations less than 3 minutes per player, while Standard
	games are those with expected durations more than 15 minutes per player.

Lightning Game

    A game is "Lightning" if the expected duration of the game is less than 3
minutes per player.  "Expected duration" (etime) determined by a formula that
takes into account both the Start time and the Increment (Inc) value assuming
40 moves are played.  Here is the formula:

Expected duration = (Start + Inc*2/3)

Untimed Game

	A game is "Untimed" if the clocks will not be used when playing the game. 
	In this case, both the Start and the Increment are 0.  For example, "match
	friar 0 0" would request an untimed game against Friar.  The clocks in an
	untimed game will not move (though interfaces may handle this in different
			ways).  Also, "flag" will not work since the times will never be below 0
	seconds.  Lastly, Untimed games are always unrated.

Wild Game

	Wild is a little different from the other categories of boards in that
	the starting positions are non-standard.  Because wild games are fundamentally
	different than regular chess they are rated separately from blitz and
	standard chess games.  The wild ratings, however, do not take into account the
	time controls; all wild games are rated on the same basis.

	Here are the major variations of wild that are rated:

	Style 0:  White has the typical set-up at the start.  Black's pieces are the
	same, except that the King and Queen are reversed, so they are not on the same
	files as White's King and Queen.

	Style 1:  In this variant both sides have the same set of pieces as in normal
	chess.  The white king starts on d1 or e1 and the black king starts on d8 or
	e8, and the rooks are in their usual positions.  Bishops are always on
	opposite colors.  Subject to these constraints the position of the pieces on
	their first ranks is random.  Castling is done similarly to normal chess:  o-o-o 
	indicates long castling and o-o short castling.

	Style 2:  In this variant the usual set of pieces is arranged randomly on the
	first and eighth ranks, with the constraint that Black's arrangement is always
	a mirror image of White's.  Castling is not allowed.

	Style 3:  In this variant the set of pieces is randomly chosen (subject to the
			constraint that there is one king of each color).  It is quite possible to get
	more than the normal number of a given piece, such as three rooks or two
	queens.  The pieces are placed on the first rank behind the pawns, the
	position of Black's pieces mirrors White's placement, and castling is not
	allowed.

	Style 4:  In this variant a random set of pieces is generated.  These pieces
	are placed randomly for White and Black behind the rank of pawns, subject to
	the constraint that the bishops must be balanced.

	Style 5:  In this variant, each player has the usual set of pieces.  However,
	they are placed in a very unusal position.  Pawns start on their 7th rank
	rather than their 2nd rank!  They are, therefore, one move away from becoming
	queens.  The pieces are placed on their 8th rank rather than the 1st rank.
	When the game starts, it will look like the board is upside down, with White's
	pieces starting on Black's side of the board, and vice versa.  But don't let
	this fool you.

	Style 8:  In this variant, the major pieces are in the normal positions but
	the pawns are in their fourth rank rather than their second rank.

Bughouse Game

	Bughouse (or siamese chess) is a "wild" variant of chess played between two
	player teams on two separate boards.  The special feature of the game is that
	pieces you capture are transferred to your partner, who is playing with the
	opposite color pieces from yourself.  He may "drop" such a piece on an empty
	square as a subsequent move in his game.

	STARTING A BUGHOUSE MATCH

	First, use the "partner" command to select a partner.  Next, find an
	opponent team.  You may use the Team channel for this purpose (channel 25),
	and the command "who B" lists players who are members of a current bughouse
	team.

	Then, one of your team challenges his desired opponent on the other team to
	a "wild bughouse" match.  (A useful alias for this is "alias bug match @ 2 12
			bughouse" where "bug user_name" is all you would need to type in order to
			match user_name to a bughouse game.)

	When the match is accepted and all four players are present, then two games
	are initiated simultaneously: one between the challenger and the challengee
	with the desired colors, and one between the other partners, with colors
	opposite from their partners.  The same time control applies to both boards,
	though "moretime" can be used independently on each board.  Each player is
	notified of the game number of their partner's game, so he may observe it as
	well as playing in his own game.

	To help you form bughouse partnerships and bughouse matches, two channels
	have been established: channels 24 and 25.  Channel 24 is for matches and
	channel 25 is for partnerships.

	PLAYING BUGHOUSE

	As you play, you will be periodically notified when your partner passes you
	captured pieces.  You will be told the piece that was passed, and the set of
	pieces that you are currently holding.  You are also notified when your
	opponent's holdings change.  Both player's holdings are displayed whenever
	your board position is refreshed.

	A new move notation is needed to drop one of your held pieces onto the
	board.  The notation for making a drop is "P@fr", where P is a piece you are
	holding [PNBRQ] and "fr" is the empty destination square.

	You may talk to your partner.  It is recommended to set up convenient
	aliases for common messages, such as "I need a knight!!", "Don't give him a
	bishop!", and "Are you out of your mind?!".  The "ptell" command is used for
	this purpose; only your partner will hear it.

	The match is finished when one player is checkmated, resigns, or is flagged.
	At that point the wild ratings of *all* match players are adjusted, whether or
	not the team result was because of their game.  A draw request should be made
	and accepted at *both* boards before the match is ended as a draw [a near
	impossibility].

	Note that checkmate is defined differently:  there must be no *possibility*
	of avoiding checkmate by a drop interposition.  Even if your opponent is
	holding no pieces that he can drop, he may later get a piece to interpose from
	his partner.  Thus, only contact and knight checks can give a "decisive"
	checkmate.

	RESTRICTIONS

	Pawns cannot be dropped onto your first or eighth rank, although they may be
	dropped onto the seventh rank and promoted on the next move.

	Pieces that had been promoted revert to pawns when captured and passed to
	your partner.

	Your partner variable is not saved between logins.  You should set it prior
	to starting your first bughouse match in a server session and when you want to
	change partners.

	Observers should observe both games to see the full match.  Kibitzes and
	whispers, however, go to observers (and players) of *both* games.  Observers
	will also be notified of pieces transferred to each player's reserves.  (Note
			that kibitz can be used as a shortcut to tell your partner something if you
			don't mind your opponents hearing it.  It also makes the game more exciting
			for the observers.)

	Strength assessment takes held pieces into account.

	This mode of play may break client interfaces.  Contact the author of your
	client to determine if you can play bughouse with it.  If a client relies on
	the board position rather than moves, things should work OK.  No new styles
	have been added to support bughouse.

Crazyhouse Game

	Crazyhouse is a variant of bughouse chess designed for two players.  The
	main feature of this game is that, when you capture an opponents piece, it
	becomes yours to use as you wish.

	A new move notation is needed to drop one of your held pieces onto the
	board.  The notation for making a drop is "P@fr", where P is a piece you are
	holding [PNBRQ] and "fr" is the empty destination square.  For example, if you
	want to drop a knight on f7, you would type N@f7.

	If you are using the chess.net interface, you can also right click on the
	square you wish to put the piece on, and then click on the piece you wish to
	'drop'.  The chess.net interface has a 'box' on the side of the board that
	displays the pieces you hold from capture.