# # A Certain poster to rec.games.bridge has been posting # a computer generated bidding system that, to most bridge # players eyes, looks somewhat deranged. # # bid.lib is a library of tcl routines which allow you # to define opening bids and later check to see if a hand # fits the conditions source /usr/share/deal/lib/bid.tcl defvector AKQ 4 3 2 defvector Top4 1 1 1 1 defvector Aces 1 defvector None 0 proc top4spades {hand} { return [Top4 $hand spades] } # Usage: # describebid # # Don Quixote's system: # describebid 5D {$d>=8} AKQ 0 3 describebid 5C {$c>=8} controls 0 1 describebid 4S {$s==8} controls 0 3 describebid 4H {$h>=7} controls 0 1 describebid 4D {$d>=8} AKQ 5 7 describebid 4C {$h==8 && $d*$c*$s==3} Aces 1 1 describebid 3NT {$s==9 && ($h==2 || $d==2 || $c==2)} top4spades 2 4 describebid 3S {$s==7 && $d*$c*$h==6} AKQ 0 7 describebid 3H {$h==7} losers 16 17 describebid 3D {$d==7 && ($h==3 || $c==3 || $d==3)} hcp 3 3 describebid 3C {$c==7 && $d*$h*$s==4} AKQ 0 3 describebid 2NT {$s==7 && $c*$h*$d==8} hcp 4 5 describebid 2S {$s==7 && $c*$d*$h==4} hcp 3 5 describebid 2H {$h==7} Aces 0 0 describebid 2D {$d==7 && $h*$s*$c==6} hcp 2 5 describebid 2C {$c>=3 && $d>=3 && $h>=3 && $s>=3} hcp 22 23 ####################################### # # This uses the proceducre "getbidlist", which is really # a "shapefunc" defined in bid.lib . It returns a list # of all the possible described bids which can be made, given # only the shape of the hand. This turns out to be a very # good optimization - rather than looping through all the # bids, we only have to loop through a small subset. # # "checkcondition" then actually checks whether the hand # is fits the other condition (which does a computation # using the function provided and checks whether the hand is # in the correct range.) # # This search looks for (south) hands which would open # 2C under the above system. What kind of system # opens at the 2 level only 1/100 times, anyway? # Bizarre. # ####################################### foreach bid $bidlist { set count($bid) 0 } set accepted 0 set tried 0 main { incr tried foreach bid [getbidlist south] { if {[checkcondition $bid south]} { puts "$bid with [south]" incr count($bid) incr accepted accept } } reject } # # Copyright (C) 1996-2001, Thomas Andrews # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #