/***************************************************************************/
/* micro-Max version 4.8 (~1950 characters) features:                      */
/* - recursive negamax search                                              */
/* - all-capture quiescence search with MVV/LVA priority                   */
/* - (internal) iterative deepening                                        */
/* - best-move-first 'sorting'                                             */
/* - a hash table storing score and best move                              */
/* - futility pruning                                                      */
/* - king safety through magnetic frozen king                              */
/* - null-move pruning                                                     */
/* - Late-move reductions                                                  */
/* - full FIDE rules (expt minor promotion) and move-legality checking     */
/* - keep hash + rep-draw detect                                           */
/* - end-game Pawn-push bonus, new piece values, gradual promotion         */
/***************************************************************************/
/* The Fairy-Max version reads the piece description from a file fmax.ini  */
/* The format supports many fairy pieces, including hoppers.               */
/* f) now supports 15 piece types, by requisitioning WHITE bit             */
/* g) supports larger board width.                                         */
/* h) castling bug ('in-check by non-captures') corrected                  */
/* i) rep-draw bug ('side-to-move') corrected                              */
/* k) allow user underpromotions, recognize & ignore 'variant' command     */
/* l) edit bug corrected (i & j file clear)                                */
/* m) piece values no longer quantized, game-stage counting bug corrected  */
/* n) edit-menu K-side castling bug corrected.                             */
/* o) retrieve the requested variant from the .ini file                    */
/* p) clear hash table on variant switch                                   */
/* q) reduced piece-material count for better Pawn push                    */
/* r) hash-table bug corrected (X still ORed with flags)                   */
/* s) Bug that prevented initialization center points corrected            */
/* t) castling bug after edit fixed                                        */
/* u) converted to protocol 2; ping implemented                            */
/* v) white e.p. rights hash bug fixed;                                    */
/* w) piece indicators programable, multi-path support                     */
/* x) e.p. changed to support Berolina Pawns                               */
/* y) capture value of 6-7th-rank Pawn reduced in Shatranj                 */
/* z) bug in promotion input corrected                                     */
/* A) stalemate-detection bug in printResult fixed                         */
/* B) Invalidate hash on game-level promotion (might be under-promotion!)  */
/* C) King move evaluation based on negative piece value in stead of nr    */
/* D) WB memory command added, undo fixed                                  */
/* E) 15th piece read in                                                   */
/* F) accepts ini fileargument                                             */
/* G) bug in calculation ASCII promotion character fixed                   */
/* H) unified normal and shatranj source                                   */
/* J) rewrite under-promotion code, fixes persistent bug there             */
/* K) o[] and oo[] made int to make fairymax work on big-endian machines   */
/* L) added Resign option feature (using new WB protocol)                  */
/* M) char -> signed char for better portability                           */
/* N) add PV printing and multi-PV support                                 */
/* O) non-Rook castling, 6th-rank promotion, independent B/W piece naming  */
/***************************************************************************/

4/6/2009 Unified source of ShaMax and Fairy-Max into single fmax.c file, and
         created this ChangeLog from the until then self-documenting source.

6/2/2009 Promotion code rewitten to not refer to default piece characters.

9/3/2009 Fixed big-endian bug in reading inifile (char with int format),
         and added some option features to make Fairy-Max useful as test
         engine for GUIs that want to implement the WB protocol extensions.

9/16/2009 Made signedness of char in AI explicit

27/12/2009 Added PV updating through the triangular-array method. Also added
           a multi-PV option to print lines within a certain sccore margin.

15/1/2010 Improved Makefile, updated docs
          Implement independent naming of white and black pieces. (So mirror-
          image pieces can use same letter.) 
          Change castling code to allow castling with any corner piece type.
          Implement 6th-rank promotion based on 'Queen' value.
          Makruk added as new variant to the fmax.ini file.

16/1/2010 Fixed bug in Shatranj result claims.
          Flip eval sign when side-to-move changes through WB color command.
          
17/1/2010 Removed Shatranj stalemate claim again, as it was never triggered.

1/11/2010 Implement counting of pieces, and extinction win condition.
          Add engine option to allow subdivision of variant fairy.
          Add FIDE vs Nutty Knights as variant fairy/FIDE-Nutters
          Allow white and black to promote to a different piece type.

2/11/2010 Implement duple-check rule.
          Add Spartan Chess as variant to fmax.ini.
          Update docs.

1/12/2010 Version 4.8Q, implementing a reverse setup command for sending
          pieceToCharTable and initial position to the GUI, sub-specification
          of variant fairy through an engine-defined option, allowing Seirawan-
          type gating moves in search. Seirawan Chess is added as new variant,
          pluss several new combinations of Chess with different armies