From 4dd94d58a1a7f109ab9b77d73a9e3e028ae859ee Mon Sep 17 00:00:00 2001 From: H.G. Muller Date: Fri, 15 Jan 2010 09:39:16 +0100 Subject: [PATCH] Update description in fmax.ini file --- data/fmax.ini | 35 ++++++++++++++++++++++++++--------- 1 files changed, 26 insertions(+), 9 deletions(-) diff --git a/data/fmax.ini b/data/fmax.ini index 97fbe64..4c75448 100644 --- a/data/fmax.ini +++ b/data/fmax.ini @@ -133,11 +133,24 @@ After that follow upto 18 lines with the description. Line 1: Board size (files x ranks). Ranks must currently still be 8. Line 2: initial setup of white pieces on back rank Line 3: initial setup of black pieces on back rank -Line 4-10: Description of pieces present in the opening position -Line 11-18: Description 8 additional piece types - -The rest of the lines is ignored, but some pre-cooked descriptions are -provided for easy copying into the first positions. +Line 4-18: Description of piece types that can occur in the variant + +There can be upto 15 piece types per variant, numbered 1 to 15. +Numbers 1 and 2 are considered Pawns for white and black, respectively, +and the 2nd and 7th rank of the opening setup will be filled with them. +These pieces will automatically promote to piece number 7 when they +reach last rank. So in normal Chess, piece 7 should be programmed as Queen. + +Castling currently can be done only with a piece number 6 in the corner, +so in normal Chess you should program piece 6 as Rook. Any royal piece +can in principle castle. (Subject to the normal restrictions on castling, +i.e. not passing through check etc.) If you don't want that, remove the +castling moves from the King desription. If the castling initiator does +not start in a central file, the results are currently undefined. + +Most variant definitions can be seen at the end of this file. +Other lines in this file (i.e. those not recognized as belonging to a +variant description) are ignored. They can be used for comments. @@ -153,6 +166,14 @@ The piece-description lines have the following syntax: c) the move-mode descriptor, most easily given in hexadecimal, as the individual bits specify the various options +The piece indicator character is used to set up positions, and for the +promotion choice as 5th character of an input move. (Fairy-Max itself +always promotes to "Queen", i.e. the 7th piece of the list.) +If more pieces use the same letter, the first one is used for white, +and the last one for black. If more than two have the same name, the +others cannot be indicated at all, but they could still occur in the +initial setup (where you specify them by number, not letter). + The individual bits in the move-mode descriptor have the following meaning: In the last hexadecimal digit: 1 capture allowed (of enemy piece; own pieces always block a move) @@ -208,10 +229,6 @@ black Pawn, respectively, or promotions will have undefined effects. Also note that uMax does do primitive evaluation of Pawn structure, which might become counter-productive if the Pawn move is changed. -Castling is done with the Rook replacement (the piece that starts in the -corner, whatever its type). If you don't want that, remove the castling -moves from the King desription. If the castling initiator does not start -in a central file, the results are currently undefined. For the truly lazy, a few complete game descriptions can be found below: -- 1.7.0.4