H.G.Muller [Thu, 23 Oct 2014 18:41:06 +0000]
Let 'make dist' use fairymax.c version in tar-ball name
The VERSION is extracted from the C source with grep|sed, and assigned
to a variable in the Makefile (if it was not defined already), which is
then used in the tar-ball name when creating the distro tar ball.
H.G.Muller [Thu, 23 Oct 2014 16:04:54 +0000]
Implement -v option for printing version number
H.G.Muller [Wed, 22 Oct 2014 18:17:56 +0000]
Bump version number
H.G.Muller [Wed, 22 Oct 2014 12:20:21 +0000]
Change symbol of Mammoth in Team Mate to cannon
This seems to describe the usage of this piece, with its range 2 and 3
jumps better. (The 'M' could also be taken to stand for 'Mortar'.)
H.G.Muller [Wed, 22 Oct 2014 12:18:01 +0000]
Fix detection of bare Kings
The black King was already considered bare wihen black had still 3 pieces,
and null move was always switched off, even if no King was bare.
H.G.Muller [Fri, 17 Oct 2014 21:39:03 +0000]
Repair initial position of ASEAN
The previous fix was enough to put the Pawns on 3rd rank in the FEN
of the setup command Fairy-Max sent, but it still put them on 2nd rank
on its internal board.
H.G.Muller [Fri, 17 Oct 2014 11:31:47 +0000]
Update chagelog
Also for version 4.8T, where it was forgotten.
H.G.Muller [Thu, 16 Oct 2014 11:29:22 +0000]
Bump version number to 4.8U
H.G.Muller [Thu, 16 Oct 2014 11:28:11 +0000]
Adapt the comments in the ini-file to be more informative
This because they are now displayed to the user ed by the Info option.
H.G.Muller [Thu, 16 Oct 2014 11:27:04 +0000]
Implement Info option
This button option pops up a notice with the comment line above the
game definition.
H.G.Muller [Thu, 16 Oct 2014 10:05:35 +0000]
Reorder engine-defined options
The 50-move claim option is moved up to the resign option, as they
do similar things.
H.G.Muller [Thu, 16 Oct 2014 09:58:30 +0000]
Remove fairy/Spartan
This has been superfluous ever since Spartan Chess is a standard variant
in XBoard, and implemented in Fairy-Max that way too. And the entire
'Variant fairy selects' system goes obsolete now that XBoard 4.8.0
implements engine-defined variants anyway.
H.G.Muller [Wed, 15 Oct 2014 12:34:45 +0000]
Change name of Companion Chess to Team-Mate Chess
Turns out the name 'Companion Chess' was already taken. But 'Team Mate'
seems a better name anyway.
Also make ID for Adjutant (without color-changing move) J in stead of B,
and rename Wind Mill to Mammoth (M), and use F for Phoenix. Exclude Ancaa
and make Cobra the primary promotion choice (as it is the strongest piece
that is not color bound).
H.G.Muller [Wed, 15 Oct 2014 12:56:09 +0000]
Forbid promotion to pieces with value ending in 3
No piece had that yet in any existing variant, and although Fairy-Max will
still always promote to piece #7, the user's promotion choice can now be
checked better for legality.
H.G.Muller [Wed, 15 Oct 2014 12:53:03 +0000]
Add remark on royal-on-hill winning condition in ini file
H.G.Muller [Wed, 15 Oct 2014 12:41:24 +0000]
Update remark on Makruk promotion zone in ini file
H.G.Muller [Tue, 14 Oct 2014 21:42:49 +0000]
Switch to using Ancaa in Companion Chess
Now we can do bent riders, the Ancaa is a better Queen replacement
as the Adjutant, as it does not need an unnatural color-switching move.
Also there is no reason that the same piece should be used for castling
K-side and Q-side, so we replace one of the corner pieces by a
'sliding Gnu', for which the C move can be blocked on the N square.
Leave a pure (color-bound) Adjutant in aspromotion choice, to play with.
H.G.Muller [Mon, 13 Oct 2014 09:32:55 +0000]
Toggle mode & direction only once on riders
Rather than toggling the mode and direction every step after the
range count runs out, (as needed for crooked pieces), we now only
toggle when the range expires (so we can define bent riders).
H.G.Muller [Sun, 12 Oct 2014 20:30:39 +0000]
Fix promotions in variant normal
The Queen to which we promote must have ID 'Q', or we would print an
incorrect promotion suffix. The Queen in the initial setup can have any
name, as the name is never used. So we supply a duplicate Queen, used
in the initial setup, which is ordered by piece value, while the
Queen obtained through promotion or an edited position has the
sub-optimal ordering.
H.G.Muller [Sun, 12 Oct 2014 17:58:58 +0000]
Fix castling in all CWDA flavors
Relying on the native castling did not work with unorthodox corner pieces.
H.G.Muller [Sun, 12 Oct 2014 17:49:21 +0000]
Implement Companion Chess
This self-concocted variant distinguishes itself in that it does not
have a single piece with mating potential, so that mates in the late
end-game always have to be performed by pairs of pieces.
H.G.Muller [Sun, 12 Oct 2014 09:46:28 +0000]
Fix ASEAN Chess
Variant asean did not put the Pawns on 3rd rank since the "=3" suffix
was used to indicate Makruk, as ASEAN has a normal 1-rank promotion zone.
By adding "=1" as a kludge, and later resetting the 'makruk' variable
that controls the zone width, it now sets up the correct position.
H.G.Muller [Sun, 12 Oct 2014 09:04:48 +0000]
Add option do adjust 50-moves draw claim
The number of reversible moves after which a draw claim is emitted
is now adjustable through an engine-defined option.
H.G.Muller [Sun, 12 Oct 2014 08:20:55 +0000]
Use separate-kings definition in variant normal
Variant normal is now defined with separate piece types for white
and black King, so that the stay-put bonus can be effective, allowing
it to win KBNK.
H.G.Muller [Sun, 12 Oct 2014 08:13:05 +0000]
Let bare King paint itself out of a corner
A bare King now increses the centralization bonus of any square it
visits at game level. This implements a perpetually increasing
'stay-put bonus' for loitering in the same location, and makes the
strong side eventually decide to drive the bare King out of a corner
where it cannot be checkmated.
This only works in games where the white and black King are defined
as separate piece types (as there is no bare-King recognition otherwise)!
H.G.Muller [Thu, 9 Oct 2014 17:16:10 +0000]
Define b&w Kings separately in Makruk, ASEAN and Courier
This triggers the bare-King mating enhancement, which is important
for mating with many Ferz and Knights. Cambodian already did have
separate Kings, for the initial moves.
H.G.Muller [Thu, 9 Oct 2014 16:48:22 +0000]
Increase centralization bonus of bare King
Any bare King is detected before starting the search, by counting
pieces. Its centralization points are then multiplied by 5. In addition
null move is switched off by faking material count R = 4. This helps
a lot in Makruk KNFFK end-games. The hash table is invalidated to soften
the shock of that.
This can only work when white and black King are defined as different
pieces, and the feature is triggered by piece 3 and 4 being royal.
H.G.Muller [Wed, 8 Oct 2014 06:56:21 +0000]
Repair Seirawan gating
The overhaul of promotion code had forgotton to strip off the virginity
and color bits of the gated piece (gt) when assigning it to the promotion
piece type. With as a result that garbage characters were printed as
promotion suffix in gating moves.
H.G.Muller [Sat, 4 Oct 2014 20:02:35 +0000]
Emit piece command for Falcon in Falcon Chess
This uses the 'a' operator, which might not yet be supported by
XBoard 4.8.0. (But this then also should reject it when legality testing
is on.)
H.G.Muller [Thu, 2 Oct 2014 21:37:12 +0000]
Add Bifurcator Chess
A self-concocted Chess variant using the concept of bifurcating
pieces conceived by Mats Winther. The Bishop and Rook are replaced
by upgraded versions that have all usual moves, but 'bounce off' the
first friendly piece that would have normally blocked them. They can
continue at 45-degree angle on either side of that piece. This seems
good to drive anyone crazy! Piece values as yet completely unknown,
but obviously higher than the usual B and R, as they get lots of extra
moves when the board is well populated, so I upped them 1 Pawn.
H.G.Muller [Fri, 3 Oct 2014 08:22:51 +0000]
Use '2'-bit of range field to flag hop-friend
The possibility to 'collide' from the hop platform by first stepping
back a number of squares before starting the second leg is now restricted
to one square, as indicated by the '1'-bit of the range field, for hoppers.
The '2' bit now flags that only a friendly piece can be used as platform;
an enemy counts as empty in the hop test, but because there is an actual
piece there it will terminate the ray (as no hop will reset that then).
H.G.Muller [Thu, 2 Oct 2014 21:29:08 +0000]
Let hoppers change direction, use range bits as offset
Hoppers were ignoring the step-vector toggle. This is now corrected,
with a re-write to get more compact code (toggling the rights bits only
in a single place). The range counter is no longer decremented for
hoppers, so these bits can now be used as flag for something else.
Currently they are used to subtract range*oldStep from the hop square,
so that with range=1 the hop-toggle takes place on the square before
the obstacle, allowing implementation of colliding bifurcators.
H.G.Muller [Tue, 30 Sep 2014 20:18:32 +0000]
Implement King of the Hill as engine-supported variant
The new winning condition is implemented as finding a royal of the stm
on the hill at the start of the turn. A global flag 'hill' enables this
test, and is set when the value of piece #3 is -2. (Kludgy!) The flag
centr[pieceType] is now used as a multiplier, which for 0, 1 amounts
to the same, but opens the possibility to up it before the search, for a
specific piece type. This is used in 'King of the Hill' to increase the
attraction of the King towards the center from 12 to 264cP when material
drops from Q+2minor (each) to nothing. (This was worth 100 Elo!)
The royal piece must be piece #3!
H.G.Muller [Sun, 28 Sep 2014 20:55:24 +0000]
Add Windows icon for the executables
For convenience the .o file is also committed, although it is really
a derived file.
H.G.Muller [Sun, 28 Sep 2014 20:44:40 +0000]
Add piece command for Rookies Marshal
The native moves of XBoard for the chosen piece were KN, not RN.
H.G.Muller [Fri, 26 Sep 2014 21:04:58 +0000]
Add Charge of the Light Brigade as engine-defined variant
A slight modification in the FEN printing was needed so that white
could have empty squares on the back-rank of the setup. (Black stil
cannot!)
H.G.Muller [Wed, 24 Sep 2014 17:46:09 +0000]
Emit piece commands in cylinder Chess
H.G.Muller [Tue, 23 Sep 2014 20:23:06 +0000]
Mention more variants in plugin-spec
Now that the plugin-spec standard has decided on categorizing variants,
we can mention the categories in which the Fairy-Max variants belong.
H.G.Muller [Tue, 23 Sep 2014 20:19:57 +0000]
Emit piece commands in Cambodian and Great Shatranj
H.G.Muller [Sat, 20 Sep 2014 08:55:44 +0000]
Configure piece commands for all non-standard pieces
The weird pieces in Chess with Different Armies, Great Shatranj and
the Ai-Wok are now described in piece commands, so the GUI can be made
aware of the way these move. For Berolina, Falcon and Superchess this
was not yet possible, because of e.p. capture, multi-leg moving and
the Emperor's castling move, respectively.
H.G.Muller [Sat, 20 Sep 2014 08:25:59 +0000]
Support printing of piece command specified in ini file
Lines behind the game definition starting with # (after an empty
such line) are sent to the GUI with a 'piece' prefix. This allows
Fairy-Max to implement the new XBoard protocol for communicating
piece moves to the GUI, so the latter can do legality testing and
better SAN generation.
H.G.Muller [Sat, 20 Sep 2014 09:25:51 +0000]
Mention piece-to-char table in format description
H.G.Muller [Sat, 20 Sep 2014 08:36:27 +0000]
Correct Marshal moves in Rookies army
The moves of the Marshal in the CWDA Remarkable Rookies army were
configured as that of the Colonel from the Nutty Knigths army,
rather than as an ordinary RN compound.
H.G.Muller [Sat, 20 Sep 2014 07:29:23 +0000]
Fix spurious setup command at startup
The vatiable ptc was used uninitialized when the default game description
at the start of the ini file was used in response to LoadGame(NULL),
leading to printing of a spurious setup command with garbage piece-to-char
table, which would wreck the initial setup of XBoard when it started with
legality testing off.
H.G.Muller [Sat, 13 Sep 2014 13:06:16 +0000]
Add separate plugin-spec files for maxqi and shamax
Next to the .eng file, also install logos for them, but use the same
logo as for fairymax (now named logo.png).
H.G.Muller [Fri, 12 Sep 2014 20:51:34 +0000]
Update Makefile
Let Makefile install logo and plugin-spec file for new GUI auto-install
system. Also apply Debian patch regarding LDFLAGS and CPPFLAGS.
H.G.Muller [Fri, 12 Sep 2014 16:15:25 +0000]
Create .eng file
This file is intended for install in /usr/share/games/plugins/xboard/
to announce the presence of the engine.
H.G.Muller [Fri, 12 Sep 2014 16:15:02 +0000]
Commit logo
H.G.Muller [Fri, 12 Sep 2014 16:05:46 +0000]
Let main return value, to make Clang happy
H.G.Muller [Mon, 8 Sep 2014 10:12:03 +0000]
Bump version number
H.G.Muller [Mon, 8 Sep 2014 10:00:55 +0000]
Delete some spurious empty lines from ini file
H.G.Muller [Mon, 8 Sep 2014 09:58:35 +0000]
Add variant 'nocastle' description to ini file
H.G.Muller [Thu, 26 Dec 2013 20:54:54 +0000]
Send parent variant with setup command
Implement WinBoard's extended setup command, which also specifies
board size and parent variant. The parent variant can be specified
in the fmax.ini file behind the pieceToCharTable. Ai-wok and Cambodian
now have new definitions making use of this mechanism. To not confuse
them with the old definitions, (which remained for backward compatibility),
the later are now capitalized.
H.G. Muller [Wed, 23 Oct 2013 18:47:16 +0000]
Fix MaxQi printinf variants
The bug that with some compilers made Fairy-Max fail reading its ini file
was still present in MaxQi, and doing the same thing there.
H.G. Muller [Mon, 20 May 2013 11:36:47 +0000]
Issue setup command in Makruk
Printing of a setup command after loading a game is now also done in Makruk,
and takes into account Pawns start on 3rd rank there.
H.G. Muller [Mon, 20 May 2013 10:59:47 +0000]
Implement Ai-Wok option in Makruk
The checkbox option to play Makruk with Cambodian rules is now replaced
by a combobox that lets you choose between makruk, cambodian and ai-wok.
The latter is given a new definition in the fmax.ini file. It is Makruk
where the Met is replaced by an Ai-Wok piece (RNF).
H.G. Muller [Mon, 20 May 2013 10:15:11 +0000]
Adopt new method for indicating promotion-zone depth
Fairy-Max normally promotes Pawns only on last rank. For Makruk, whih needs
6th rank, a kludge was used by trikkering on value 181 of the promotion
piece. Now a suffix =N to the board-size spec is used in stead, where N
indicates the deviant zone depth. For now we always assume N=3 when this
suffix is present (as the IA would not know how to do other zone depth
than 1 or 3).
H.G. Muller [Mon, 20 May 2013 09:49:44 +0000]
Add ASEAN Chess
This is a clone of Makruk, using Q and B for piece ID, and promotion
only on last rank. (And white K and Q set up differently, but as it gets
the Pawns wrong this has to be loaded from the GUI anyway.)
H.G. Muller [Thu, 16 May 2013 17:14:47 +0000]
Mark castling Rook as non-virgin
The Rook was left virgin when castling. This could cause erroneous gating
in variant seirawan. Now the original piece is remembered in a variable rk,
from which it can be restored, while the on-board (moved) Rook wil get the
virginity bit set. Separate storage was preferred over clearing the bit
on take-back, because it allows the same code to also handle other removal
of pieces a a side effect of a move, by setting G to the piece to be removed.
H.G. Muller [Fri, 26 Apr 2013 09:11:17 +0000]
Update man page
Mention the limited-range sliders.
H.G. Muller [Fri, 26 Apr 2013 09:01:44 +0000]
Fix compiler warnings MaxQi
LoadGame was declared as int rather than void and did not return anything.
The return statements in int main did not return a value.
H.G. Muller [Thu, 28 Feb 2013 14:41:36 +0000]
Check in Fairy-Max web page
H.G. Muller [Tue, 26 Feb 2013 14:15:20 +0000]
Fix promotion value Shatranj / Courier / Makruk
The patch to use true piece value in game-level promotions broke variants
in which promotion is to the worthless Ferz. Because in subtrating the
default score it did not take into account the division by 8 this has
in the search for such variants.
H.G. Muller [Wed, 20 Feb 2013 16:08:27 +0000]
Implement Remarkable Rookies
The Rookies army of Chess with Different Armies contained an R4, which
can now be implemented with the limited-range slider extension. Game
defiitions have been added of Rookies vs FIDE and Clobberers (both ways).
H.G. Muller [Wed, 20 Feb 2013 16:06:37 +0000]
Implement limited-range sliders
bit 10 & 11 of the flags word were still unused, and are now used to
specify how many steps the first toggling of the move rights should
be postponed on non-hopper moves.
H.G. Muller [Sat, 16 Feb 2013 17:05:46 +0000]
Fix check extension
Check extension in micro-Max was not be awarded when a piece other than King
captured the checker. In the code this was still tested assuming the piece
number of the King would always be 3, while in Fairy-Max every piece can be
Royal, based on the sign of its piece value w[]. In many game definitions
piece 3 was actually not a King at all.
H.G. Muller [Wed, 13 Feb 2013 18:39:02 +0000]
Fix promotion bonus
In its search Fairy-Max always promotes to 'Queen' ad gives itself 768 cP
bonus for that. (Which is about right for the original micro-Max Q=851
and P=74.) The opponent can do under-promotion to a piece of wildly
different value, though, and this was not corrected. It is now corrected
at game level (which is the only place it can happen).
H.G. Muller [Wed, 13 Feb 2013 19:02:13 +0000]
Add 6th and 7th rank Pawn bonus when setting up position
Both the bonuses hidden in the board, as well as the total material
evaluation had to be added.
H.G. Muller [Tue, 12 Feb 2013 15:38:38 +0000]
Update changelog
H.G. Muller [Mon, 11 Feb 2013 21:30:26 +0000]
Bump version number to 4.8S
H.G. Muller [Tue, 12 Feb 2013 15:03:36 +0000]
Fix bug in Berolina e.p. capture
A move to the e.p. square in Berolina is not always an attempt to
capture e.p., but can also be a normal non-capture. The latter were
refused, however, because the capture square was always shifted for
Pawn moves to the e.p. square. Now it is only done when the move
has capture rights associated with it.
H.G. Muller [Tue, 12 Feb 2013 08:43:20 +0000]
Fix spurious result claims in Spartan Chess
Fairy-Max sometimes sees phantom mates, where evasion is possible through
promotion to royalty. The possibility for this is now detected based on
presence of expendable royalty in the list of participating pieces,
and this is used to suppress loss claims. (Checking if promotion is
indeed possible is limited to presence of 2nd-rank Pawn.)
In addition promotion to royalty is now rejected as illegal in variants
without expendable royalty.
H.G. Muller [Mon, 11 Feb 2013 21:38:13 +0000]
Remove under-promotion resign
This was legacy code from micro-Max, and is no longer used, as Fairy-Max
allows the opponent every under-promotion.
H.G. Muller [Mon, 11 Feb 2013 20:51:30 +0000]
Correct typo in error message
H.G. Muller [Mon, 11 Feb 2013 13:12:48 +0000]
Fix some warnings
H.G. Muller [Mon, 11 Feb 2013 13:05:46 +0000]
Fix Clear Hash option
The Clear Hash option was not properly tested for, and was thus ignored.
H.G. Muller [Mon, 11 Feb 2013 13:02:05 +0000]
Fix hash-address bug
The lowest bit of the address was clipped off by wrong use of the mask.
Because of this only even entries could be used, and spoiling of the
key after underpromotion to the 'nearest' alternative would lead to an
enormous number of false hash hits, leading to false result claims.
H.G. Muller [Tue, 24 Apr 2012 12:57:12 +0000]
Recognize drop moves as illegal move
An @-sign as second character now makes Fairy-Max recognize the input
as a move, so that the Illegal-move response is given rather than the
Unknown-command response. It is not really checked if the encoding of
the drop move accidentally coincide with that of a legal move.
H.G. Muller [Mon, 13 Feb 2012 12:37:28 +0000]
Let Fairy-Max print timing info
Before and after search a time stamp are printed, and after the search
the real and cpu time used for it. The time stamp can be compared to
that of the opponent, to calculate communication delay through the GUI.
H.G. Muller [Wed, 28 Dec 2011 13:28:18 +0000]
Fix illegal-move message on seirawan gating from gated pieces
Entering a gating move hen an already-gated piece left the back rank
as interpreted as a on-gating move, rather than rejected. This because
gating moves with non-virgin pieces were interpreted as non-gating
promotions. The test for true promotions is now done on piece type
rather than virginity.
H.G. Muller [Tue, 27 Dec 2011 14:39:42 +0000]
Fix undo in variant seirawan
The gated pieces were not remembered in the game history, so that
replaying it when tking bck a move did not work properly.
H.G. Muller [Tue, 27 Dec 2011 14:02:30 +0000]
Add setting up of holdings in variant seirawan
In WB edit mode lines of the form P@N put N copies of piece type P
in the Seirawan holdings, and the xedit=1 feature lets WB send it
this way. Should not be used for other pieces than H or E!
H.G. Muller [Thu, 3 Nov 2011 16:37:34 +0000]
Fix under-promotion hash mixup
The hash table was invalidated on under-promotion by adding the promotion
'deficit' to the J hash key. But for some fairy-pieces (in particular
Spartan G vs W) this difference apparently caused false hits in the
null-move search, leading to misqualification of positions as stalemate.
Presumably because the J key is also modified by stm, and different
stm and promo-deficit could cancel each other. In stead we now modify
the Z hash key with the promo-deficit.
H.G. Muller [Sat, 8 Oct 2011 17:29:29 +0000]
Update explanations inf max.ini file
H.G. Muller [Sat, 8 Oct 2011 13:37:24 +0000]
Update and improve manual page
H.G. Muller [Sat, 8 Oct 2011 12:45:54 +0000]
Slight improvements in Makefile
On request the Makefile is made more BSD friendly, and now also uses
DESTDIR in constructing the name of the ini files.
H.G. Muller [Fri, 7 Oct 2011 15:17:27 +0000]
Bump version number to 4.8R
Also update changelog.
H.G. Muller [Fri, 7 Oct 2011 15:44:06 +0000]
Adapt make-dist for Ubuntu crippling of md5
md5 apparently is not provided anymore in Ubuntu 10.04, and is replaced
by md5sum, which causes an error when it sees a directory, which
apparently cannot be suppressed by an option. A work-around is now
provided in the Makefile, through ignoring the result.
H.G. Muller [Fri, 7 Oct 2011 15:10:30 +0000]
Add variant falcon
The description of Falcon Chess is added again to the ini file,
now the patent on that variant has expired.
H.G. Muller [Fri, 7 Oct 2011 14:28:00 +0000]
Fix virginity of pieces in setup position
Only royal and corner pieces got their virginity bits set when they
started on the original location, because these bits were only used
for castling. But this caused problems for the Met move in Cambodian Chess.
There was in fact no reason not to extend this to all pieces.
It might even solve a so far undetected problem in Seirawan.
But in Makruk it isextra important, because WinBoard always considers
that played from a setup position, because of the non-standard Pawn rank.
H.G. Muller [Fri, 7 Oct 2011 14:22:33 +0000]
Select Cambodian Chess by separate option
A -check option is added to select Cambodian rules in Makruk, so that
this can now be played as Makruk under WinBoard. (This was needed to get
the promotion rules right.) The Cambodian Chess definition in the ini file
is changed from fairy/Cambodian to cambodian, and special code makes this
substitution for makruk.
H.G. Muller [Sat, 1 Oct 2011 21:04:13 +0000]
Add Cambodian Chess
The extra moves of virgin K and M had to be exempted from the castling
test, for which the 128-bit in th eflags is used. This bit also indicates
the intermediate square is a dummy, (which makes the move a jump), and
is thus never set on genuine castlings.
H.G. Muller [Sat, 1 Oct 2011 18:29:29 +0000]
Reorder pieces for Makruk
Makruk had many duplicate pieces, to provide B and F/Q as alternatives
for S and M. The piece ordering was also bad from the LVA point of view,
partly because the promotion piece has to be number 7 by convention.
The problem is now solved by using the B/F/Q aliases as filler pieces,
and moving the default pieces all behind M, in order of increasing value.
H.G. Muller [Mon, 10 Jan 2011 17:17:53 +0000]
Add Spartan Chess as a major variant
For now we leave in the definition of fairy/Spartan as well, for
compatibility with older WinBoard versions that do not support spartan.
H.G. Muller [Mon, 10 Jan 2011 17:15:28 +0000]
Fix phantom castlings in Spartan Chess
Spartan Kings sometimes attempted to move 2 squares laterally, because
they thought they could castle. This becuase white andblack where
sharing the King definition. Now a separate definition for the black
King is added, without castling rights.
H.G. Muller [Mon, 10 Jan 2011 16:56:04 +0000]
Fix legality of promotion to King
The count for a piece type was not increased on promotion, with a result
that in variants with an extinction win condition phantom mates and
illegal moves (when in check) were called. The count is now increased at
game level when under-promotion to an extinction piece takes place.
This is done even befor the move is performed by the legality search,
because that search would only search promotion to 'Queen', so that
a promotion would not be considered legal if it leaves the last-remaining
'King' in check. While such a promotion is a valid way to resolve the
extinction threat.
This leaves a minor problem in Spartan Chess: the King from the
promotion could also be in check, leading to a forbidden duple check,
and this is not detected. So an illegal move could be accepted here.
(Promotion to 'King' in other variants is accepted as well, btw.)
H.G. Muller [Wed, 8 Dec 2010 09:03:32 +0000]
Fix Makefile make-dist
The md5sums were copied to the distribution folder, while they were
generated later from it anyway, and this caused an error in 'make
dist' after 'make dist-clean', as the latter removes md5sums.
dist-clean,
H.G. Muller [Sat, 4 Dec 2010 12:41:31 +0000]
Fix in-file EOF problem
Because of use of an uninitialized variable in PrintVariants, some
compiles were thinking that there were no game definitions in the
fmax.ini file.
H.G. Muller [Wed, 1 Dec 2010 16:28:01 +0000]
Bump version number to 4.8Q
Also update change log
H.G. Muller [Wed, 1 Dec 2010 23:39:28 +0000]
Update man file