Light ROM 1/LIGHT-ROM 1 (Amiga Library Services)(1994).iso/ffdisks/d966.lha/UChessSrc/UChess269.readme

Text File | 1994-02-15 | 18KB | 461 lines

Short: UChess269.lha is an AGA/ECS Chess Pgm KS 2.04, 5M+ RAM, 68020+ needed.

Recent: v2.69 is latest release

Change History:

v2.69
Fixed some endgame deficencies, in King-Knight-Bishop vs King
endgame.  Fixed some lookahead bugs, and some slight mouse vs
kbd display bugs.

v2.67
Totally new eval/search.  This is based on gnuchess 4PL67 with
many enhancements.  Searchs more nodes per ply, so will get
fewer ply on slow machines, but plays better.  Also support for
Super72 mode 800X600X64 or 256 colors.  New CLI arg Super72, new
Tooltype SUPER72=1.  The L version requires 9M or more
of FASTRAM (like before, but this was not clear to everyone).
This version plays much more competitively vs skilled players
and good computers, less daring against lesser opponents though.
May not be as well suited to slower systems (020/030's), but
in all tests it seems stronger, even on A3000/25's.
(in computer v computer tests this version went 7-1-2 vs
Sargon5 on a 486, v2.54 usually went about 3-5-2 or so)

v2.54
Fixed some bugs with resign, and a small bug in undo
which caused mate msg to be displayed if you
undid mate.
Plays the same as 2.53

v2.53
Finally after days of effort I managed to find and
fix a couple of bugs introduced in 2.50 with the new
search on opponents time code...
Bug fixes and changes to genmove (movelist) nullmove
routines, and especially to search on opponents time
logic.

v2.52
Bug fixes to load game, and to transposition table routines.
Some attempt to deal with eval == 20000 bug.
Major speedup of movelist routines, speed of search and
eval greatly increased.

v2.51
Slight enhancement to endgame eval routines.

v2.50
Many changes incorporated from the Gnuchess 4PL64 release.
Any changes that did not conflict with UChess specific changes,
were merged into this version.  Changes to endgame (major)
eval and search routines were made, to bring this
version up to Gnuchess 4PL64 standards.
Many changes to clock handling routine, UChess now
manages its clock MUCH better, and thinking on opponents
time is MUCH improved, making UChess far better than
before when this feature is enabled.
NOTE: Rate Pgm is now slower than before, it takes it
longer to calc some move situations because of a bug
fix to the history table.  The older way resulted
in missed moves, but could calc some situations faster,
but not correctly.  This new way results in slower calcs,
but correct calc of moves.

v2.35
Cleaned up Mating routines, UChess will now choose shortest
route to mate and not keep searching beyond that to come
up with strange endgame moves.
Fixed some eval and search buglets and fixed a side
effect in Take Back move.  Now take back move will
clear out history buffer, so re-eval of moves after
takeback will result in best move being made, not
necessarily a different move from the last choice.
Taking Back a move now takes much more time, but
results in steady gameplay.  Prior version often chose
alternate moves after take back a move was chosen.
Redid some of the positional modifiers in eval routines,
this version seems to play quite a bit stronger and
steadier than previous versions, when pressed.
Recompiled using SAS/C 6.51

v2.33
Same as v 2.32 but fixes some problems that prevented 2.32
from running on machines without AmigaDOS 3.0 or later.
This version runs on AmigaDOS 2.04 or later.

v2.32 (recompiled using SAS/C 6.50)
New Display Option for AGA machines, at startup you can
specify FASTAGA (or 64) at the CLI or you can use the FASTAGA=1
or COLORS=64 arguments in the Workbench ICON, this opens UCHess on
a 640X480 or 640X512 64 Color Screen, for additional speed.
Especially helps display speed in the MultiScan Productivity mode.
It looks almost as good the 256 color screen and is much faster.

Rewrote some routines in 68020+ Assembly language, and
re-aligned many data items for more nodes/sec eval speed.
Redid the entire opening book code, uchess will now
look for uchess:uchesswhite.book when playing as
white and uchess:uchessblack.book when playing as
black, if it cannot find these it reverts to uchess:uchess.book.
Sample white/black/neutral books enclosed, but much
improvement/tuning of these books is needed.
In general the white/black should work best for now.
In the future I hope to come up with really optimal
white/black openings and include these, at least for
now the pgm will avoid openings that are real detrimental
to it by splitting the book into 2 parts.
Also made the edit request autoactivate the edit string gadget,
for more convenient edit game entry.
Also added a resign feature, if you have started the game
in a regular manner at advanced level, and you get over
9.5 pts ahead of UChess, it will offer to resign (once).
If you load a saved game, or edit the board, it will
not offer to resign.  It will only offer to resign the game
one time.

v2.31
Re-Arranged the new game feature so it now pays
attention to the skill level when setting up a new board.
All new games came up as Advanced before, regardless
of skill level chosen

v2.30
Added a Level feature for play vs the computer.
3 levels are available, Advanced (same as before)
Intermediate (Knight Odds), and Easy (Knight + Queen Odds)

Choosing these options will force a new game, with you
are white and UChess as black, UChess will have its
Knights removed on Intermediate, and its Knights+Queen
removed on Easy.  Advanced is an equal game, like
past versions


v2.28
fixed a bug in the initialization and re-initialization
of the cache and transposition tables.
Makes for more consistent play and a better start for
the computer when using the new game option.

v2.27
Just recompiled using __USE_SYSBASE for a bit more perfomance
of system exec routines.

v2.26
Fixed many bugs in the transposition table routines, which
would cause crashes during overnight analysis with 2.25, also
affected play somewhat, this version can handle overnight
analysis, long games with no problems.  2.25 and some
earlier versions could corrupt memory if they computed
too long (for hours).
Redid the compute rating equation, for a bit more realistic
rating.  With the major speed improvements of 2.25, the old
rating equation was a bit off, giving an inflated rating of the
pgm.  This new equation is somewhat better.

v2.25
Major speed enhancements, this version should play FAR stronger
thanks to rearrangement of Cache Tables.
Major endgame changes as in gnuchess 4 pl 61, for lone
king endings.

v2.18
Attempted to reduce the number of "wild" moves that
the program makes.  Under rare circumstances, the
pgm would make wild moves based on poorly considering
the users response move.  This should not happen much
any longer.  May take more time to come up with a move
in these cases though.  Should prevent it from throwing
games away.

v2.17
Fixed a minor bug in thinkahead move choice.

v2.16
Finally found a longstanding bug screwing up move selection with
thinking on.  Thinking on now helps a lot, it also does not
screw up judicious use of the clock by the program.

v2.15
Further refined conditions when thinkahead move is taken, or additional
thinking beyond the current ply is warranted.  Refined for more likely
choice of the thinkahead move in very short (<10secs/move) games

v2.14
Fiddled with timing when thinkahead move is guessed correctly,
it was taking its thinkahead move immediately if it was as deep,
or deeper, than the previous move it pondered, it now only takes the
move immediately if it is as deep or deeper and at least 4 plys in
depth.

v2.12
Added a rating feature, based on fact that the gnuchess 4pl60
core plays at about 2300 on an IBM/RS6000, and that each
doubling of processor speed results in a 75 pt ratings improvement,
the pgm will estimate its USCF strength on your machine.
On an A4000 the L version is about 2200 USCF or so.

v2.11
Fixed a bug in dialog window for depth control.

v2.10
Redid time control so that on long matches, it will not
try and search too far ahead, if it guessed right.
It was trying for real deep searches when it would
result in massive overtime for the last level, on some
occasions, hurting play later by forcing the pgm to
rush too much.
Also load/save game now updates clock display when it loads,
and sets move now accordingly.

v2.09
Fixed bug when depth mode was on, thinking was on, and show
thinking was on, it was disabling show thinking in those cases.
Cleaned up timing a bit.
IT IS NOT CLEAR TO ME THAT THINKING ON HELPS.
I am testing this, it may be that with thinking mode off, it
plays more consistent chess, I am not sure though.

v2.07
Added Depth Control, and Book Control Options
To use Depth Control, just set it to # of plys you
want the pgm to look ahead, it will then finish its move
when it finishes that ply, regardless of time.
Book Control just allows you to enable/disable opening book

v2.06
Fixes a problem with mem alloc which showed up under Mungwall, it is
now 100% enforcer and Mungwall clean.  Guards against loading improper
game files.  Other Minor fixes.

V2.05
Redoes the time control routine for thinking mode on.
In earlier 2.0x versions, the forced timeout mode when
thinking is on could result in poor move selection
in some circumstances, this fix should allow fewer mistakes
in move selection with thinking on, when computer is forced
to stop searching a ply earlier than it would like.

V2.04
Fixes a display bug that occurs occasionally when castling with a mouse,
asks for a pal screen specifically on 15Khz 256 color systems.

V2.03
Fixes a bug in Load game which caused a crash on some machines when
pgm is run at pri >0.
Move now command is now more immediate.

V2.02
Bugs in v2.01 and 2.00 disallowed Move Now, and Underpromotion
of pawns. This is now fixed.  Move now is enabled for
Move times avg 1min or more.

V2.01
Added an additional CLI arg and tooltype, from CLI
type "UChess 15Khz" if you have an AGA machine and want
to force a 640X480X256 color 15Khz screen, may not be enough
overscan for whole screen to be visible on monitor.
From WB you can use the MONITOR=15KHZ tooltype to force this.
Pgm will auto default to 15Khz 256 color screen if you have
and AGA machine with no multiscan monitor in devs:monitors,
to force 16 colors use 16 color arg.  The 16 color screen
will fit easily on a 640X400 display, the 256 color
screen will not fit on a 640X400 display.  People with
PAL machines should have no problems fitting it all on
a 640X512 15Khz screen.

This version fixes MAJOR time control bugs present in v2.0


V2.0
I widened the search for this version and it has defeated
version 1.01 head to head 10 out of 10 times.
I belive this version plays MUCH stronger chess than
version 1.01!

-Roger


V1.01
This is version 1.01, it cleans up the 16 color graphics and
makes them look much better than in version 1.0
That is the onluy change.
See Uchess.doc for details


-Roger

UChess versions which end in L are optimized for the 68040 processor,
require 10M or MORE of FAST RAM, and play stronger than the non L
versions.
Versions which do not end in L require 4M of FAST RAM, and are
optimized for 68030 processors, and play slightly weaker than the
L versions.

Source code for Gnuchess 4p58 which is what this pgm is based on
is available from valkyries.andrew.cmu.edu via ftp.
This code rearranges some of the function arguments, data structures,
and adds an additional level of transposition table caching to Gnuchess
4p58, but uses the same logic as gnuchess 4p58 otherwise.


This program is freely distributable.


UChess is a powerful version of the program GnuChess version 4 for
the Amiga, code has been re-written and data structures re-organized
for optimal efficiency on 32 bit 68020 and better Amiga systems.
The program fully multitasks, automatically detects and supports
640X480X256 color AGA mode machines, and does not at any
time BUSY wait.

In head to head competition with Checkmate, on the same
machine, UChess has a record of 9 wins, 0 losses, 1 draw.

Program requires:

A 68020/030/040 based Amiga computer system
AmigaDOS version 37 (2.04) or later
4 Megabytes or more of RAM, 3.5M of FREE FAST RAM.
(L version requires 8.5M of FREE fast RAM)

Program auto-detects AGA capable machines, and will try and use
a 640X480X256 color VGA_PRODUCTIVITY screen, if not it defaults
to using a 16 color 640X400 HIRES LACE screen.

The 16 color screen is not very attractive, the pgm is designed
to be run on a 31Khz monitor (multisync or VGA) on an AGA machine.

Use of the 640X480X256 color mode (best mode) requires AGA Based Amiga
MultiSync Monitor/or Monitor capable of displaying VGA_PRODUCTIVITY mode
The Correct monitor type in devs:Monitors on your WB disk

To Install UCHESS:

Copy the library lh.library to your libs: directory.

If you are using an AGA machine, you should make sure that
the MULTISYNC monitor is in your devs:monitors directory,
if you have a multisync or VGA monitor.

In your startup sequence, you should put an ASSIGN UCHESS: <yourdir>,
but you do not have to.  The program will do the Assign for
you as the default directory when you boot up.

Make a directory and copy all files (except lh.library, which goes
in libs:) to this new directory, using the CLI copy command.

You can run this program from the CLI or WorkBench, if run from
the workbench.  The only CLI argument you can use is "16", this
will force the program to open a 16 color screen, regardless
of hardware.


Using the Program.

Startup Options:

You can run UChess from the CLI or workbench, from the
CLI you can enter 2 optional arguments, one is the priority
you want foreground thinking to run at (0-4) the other
is if you want to force a 16 color display, you type in 16.
So you can type UChess 16 0 to force a 16 color display
and a priority of 0.  You can also enter 2 TOOLTYPES into
the UChess icon, one is PRI=<pnum> and other is COLORS=16|256
They are the same as the CLI equivalents.


<<NOTE: The program writes a MoveList text file for each game
        to the t: directory., you need to have t: assigned somewhere,
        or the pgm will ask for it.  The default workbench Startup-
        Sequence assigns t: for you >>

You can enter moves in algebraic or reduced algebraic notation using
the keyboard, or you can use the Mouse to click and HOLD onto the
piece you want, let go of the mouse button after you have moved
the piece over the square you want it to occupy.

The following is a brief of the menus and choices in the program,

File Menu -
 About - shows a brief description of the program
 New Game - Starts a new game from scratch
 Load Game - Load a previously saved game
 Save Game - Save the current game to disk
 List Game - List the moves of current game to a file
 Quit - return to AmigaDOS

View Menu -
 2-D - Only View Available

 Edit Board - Edit current board.  To edit the board you enter
the piece character, followed by the square you want it on.
Valid piece chars are ' ' for none, 'p', 'n', 'b', 'q', 'k', 'r'.
For example pa8 puts a pawn at a8, <space>a8 clears square a8.
You can clear the entire board, and color of the piece is determined
by the WHITE/BLACK Boolean Gadget.

 Reverse - Not Implemented

Control Menu -
 Swap Sides - Change Sides with Computer (black <=> white)
 AutoPlay - Computer Plays Itself
 Move Now - Implemented when computers avg move is 1 min or more.
 forces computer to make its move immediately.
 Undo - Undo Last 1/2 move

 Thinking - Toggle computer thinking on your time,
  With this mode on, (checked), the computer will think about
  its next move while it is your turn, like a person would.
  When this is on, you will find the computer may be sluggish
  to respond to your first mouse/keypress, but it will interrupt
  itself and respond within a second.  Be aware of this fact,
  when you type a key, or press the mouse button, you stop
  the computers thinking on your time, and it will not
  resume until next turn.  IT MAY TAKE A SECOND OR SO TO
  PROCESS YOUR KEYPRESS/MENU SELECTION WHEN THIS OPTION IS ON.

ShwThnk - Shows computers thinking process, in Depth, Score and move.
100 pts = 1 pawn in this thinking process.

Supervisor mode - Allows 2 humans to play each other with computer
as sort of a supervisor.

Special Menu -
 Hint - Computer gives advise as to your next move.
 Test - Test processor speed.  This speed of lookup depends
        on currect board config, so for comparison
        purposes between machines, test the speed with
        the exact same board layout, for black and white!
        An Amiga 4000 gets about 80,000 movelist nodes/sec
        and 3700 eval nodes/sec on a new board.  Sometimes
        a bit more.
 Set Time - Brings up a window for you to set time constraints
            for the computer.  It is in the form XX moves in XX minutes.
            For Tournament conditions people often use 40 moves/120 mins
            Default is 60 moves in 10 minutes (approx 10 secs/move)


Notes on running vs other chess PGMS on the same machine:

1) Make sure thinking on opponents time is DISABLED for each pgm.
2) make sure UChess is at a high priority, UChess DOES NOT BUSY WAIT
   so it will always make 100% of the processor available to the
   opposing pgm when it is not UChess's turn.  Other chess pgms
   are not as well written, and will hog 100% of the CPU even
   when it is NOT their turn and thinking is off.  For this
   reason you should always have UChess running at a higher
   priority than its opponent, Uchess WILL NEVER steal CPU
   cycles from an opposing pgm if thinking in UChess is off.
3) Make sure both pgms have suffucient FAST RAM available to them!


Please report any problems to me, Roger Uzun
at
[e-mail]
or
[e-mail]
or on bix as ruzun.