2001-06-06 Gian-Carlo Pascutto <gcp@sjeng.org> * Released 10.0 2001-04-05 Gian-Carlo Pascutto <gcp@sjeng.org> * Released 9.0 2001-01-02 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 8.0 * lots of changes, see NEWS (sorry...didnt have time to update changelog) 2000-12-07 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.5.1 * newbook.c: BUILDTHRESHOLD, PLAYTHRESHOLD added * sjeng.h: smaller movedate (int->unsig char) * sjeng.c: (main): recognize 'variant giveaway' * seval.c: (suicide_mid_eval): smaller king centralisation bonus * search.c: (order_captures): fix MVV/LVA (qsearch): slightly smaller futility cutoff (search): more cautious check extension trigger (search): no nullmove in endgames (search): R=4 if depth > 12 (search): passed pawn extensions * protos.h: add new functions * proof.c: (suicide_pn_eval): add early exit condition * moves.c: use global from variable (gen): remove 'from' in calls (gen): use push_king_castle (push_king_castle): added (push_king): remove castling condition (add_move): use global from * eval.c: tweaked some piece-square tables rewrote the (disabled) FULLEVAL code 2000-10-24 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.4.3 * utils.c: (interrupt): return 0 on fallthrough * epd.c: (run_epd_testsuite): do not report pn-time if no pn-search was run (run_epd_testsuite): use FILENAME_MAX (check_solution): return FALSE on fallthrough * newbook.c: (*): use exit(EXIT_FAILURE) (build_book): use FILENAME_MAX * search.c: (think): short circuit if result var set (think): add time cushion on book move (think): do not exit without returning a var (search): enfore greater or equal to 0 depth before extending * proof.c: (proofnumbersearch): output game result 2000-10-22 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.4.2 * blob2.c: fix neval/seval/eval.c * proof.c: (develop_node): handle suicide 'stalemates' * seval.c: lower queen value remove srev_rank to prevent blob2.c conflict * search.c: (order_moves): lower queen value (qsearch): do legality check anyway * utils.c: (comp_to_coord): king promotions in suicide * moves.c: (gen): fixes to promotions in suicide 2000-10-20 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.4.1 * proof.c: (proofnumbersearch): only kibitz in xb_mode Use SAFETY margin for node buffer allocation * sjeng.c: (main): ask for time with 'prove' * README: MVV/LVA typo * moves.c: (push_pawn): add king promotions in suicide * Released 7.4 * learn.c: avoid code duplication via pointers * blob2.c: added * proof.c: added 2000-10-19 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * utils.c: (verify_coord): use strncasecmp * ttable.c: use 2-level tables * moves.c: (gen): break on king-capture * search.c: (qsearch): do not check for legality but check for kingcapture instead (ALL) imported suicide support from experimental versions 2000-07-23 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * search.c: (search): do not apply limited razoring if we are in check 2000-07-23 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * moves.c: (gen): optimized pawn-movegeneration (gen): split up movegen in drop and nondrop part (push_slide): optimized with macro (ALL) replaced instances of %2 with &1 (ALL) removed moves[] parameters 2000-07-22 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.3 * book.c: (choose_book_move): cleanups * extvars.h: opening_history made larger * epd.c (setup_epd_line): avoid use of 'rank' * moves.c (add_move): added (try_drop): use add_move (push_*): use add_move * search.c: (search): use original alpha when storing into TTable (qsearch): no new best score if move was illegal (search): no new best score if move was illegal (search_root): handle fail-high cases immediately (think): return immediately if we are going to be interrupted on first call * sjeng.h: no more bitfields for movedata (breaks GCC) * utils.c: (post_*_thinking): reverted to comp_to_coord (allocate_time): use more time if we have an increment * newbook.c: (build_book) zh/bug book support (choose_binary_book_move) zh/bug book support * sjeng.c: (main): added 'speed' option * utils.c: (speed_test): added 2000-07-03 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * utils.c (comp_to_san): use new movegen calling format (init_game): reset phase (hash_extract_pv): use new movegen calling format (hash_extract_pv): indicate brokenness and ugly_ep_hack (speed_test): added * ttable.c (initialize_hash): set hold_hash (fixes learning) * sjeng.h: changed some move structure data in bitfields for -maybe- faster access * ttable.c: (clear_tt): added * sjeng.c: (main): call clear_tt on variant-switch (main): 'book' and 'speed' commands added * epd.c: (run_epd_testsuite): call clear_tt * seval.c: changes to piece-square tables (end_eval): keep piece counters (end_eval): bad trade and drawn engame code (end_eval): relocated king position bonusses (end_eval): larger bonusses for passed pawns (check_phase): added (seval): use phase var rather than on-the-fly check (mid_eval): keep piece counters (mid_eval): bad trade code (mid_eval): kingsafety bugfixes (mid_eval): tweaked bonusses (opn_eval): tweaked bonusses * search.c: added ugly_ep_hack (order_moves): ifdef'ed EXTRAKILLERS (perft): updated for new movegen calling format (qsearch): updated for new movegen calling format (search): disable Extended Futility Pruning in endgames (search): updated for new movegen calling format (search): better(?) killer replacement code (search_root): use ugly_ep_hack (search_root): better killer replacement code (search_root): update bestmovenum on fail-high (think): use new book code (think): update and print game phase (think): removed bogus cpu_start update (think): new fail-low handling code (tree): use new movegen calling format * extvars.h: added phase, numb_moves, ugly_ep_hack * partner.c (CheckBadFlow): adapted for new movegen calling format * newbook.c: new file * moves.c: (gen) changed calling sequence to eliminate num_moves indirections (try_drop): removed num_moves parameter (push_king): removed num_moves parameter (push_knight): removed num_moves parameter (push_pawn): removed num_moves parameter (push_slide): removed num_moves parameter * book.c: (choose_book_move): do not fix first move for any variant (choose_book_move): adapted for new movegen calling format 2000-06-01 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * moves.c: (gen): use 'else if' for second case in ep move testing (push_slide): use break instead of set/test (try_drop): piece drop has always npiece captured 2000-05-29 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * ttable.c: (initialize_hash): reset hash before rebuilding 2000-05-28 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * search.c (search_root): time_failure only on no_moves (think): use partial search results * WAC, 486DX33 5sec: 176/300 * search.c (search): removed NDCuts/NDTries counting (search): No nullmoves on the PV. This seems to increase tactical awareness a bit as well as a few PV-backup problems. * extvars.h: removed NDCuts/NDTries display * sjeng.c (main): removed NDCuts/NDTries display * epd.c: (run_epd_testsuite): use rinput rather than scanf (run_epd_testsuite): removed NDCuts/NDTries display use check_solution and print results (check_solution): added 2000-05-26 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * utils.c (post_fail_thinking) print ?? instead of -- removed some obsolete references to Faile (comp_to_san): new function (hash_extract_pv): new function (post_thinking): use comp_to_san and hash_extract_pv (post_fail_thinking): use comp_to_san (post_fh_thinking): use comp_to_san (post_fl_thiking): use comp_to_san 2000-05-20 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * search.c: (search) disable nullmove if fewer than 14 pieces (search): only use check extensions near leaves (search): fixed: double queen and rook futility margins (search): razor first moves, except if PV (search): removed DPVS * search.c: (think) removed: printing of RS (think): count researches and display on whisper (think): only learn if depth is at least 3 * search.c: (qsearch) removed lazy evaluation 2000-04-22 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.2 * NEWS: updated * README: added remark about _WIN32 * utils.c: (rdifftime): use precise function if HAVE_GETTIMEOFDAY or HAVE_FTIME * sjeng.h: don't use timeb if !HAVE_GETTIMEOFDAY and !HAVE_FTIME * utils.c: (interrupt): check for _WIN32 if !HAVE_SELECT * added THANKS * utils.c: (rtime): use gettimeofday if ftime is not available * configure.in: added check for gettimeofday AM_INIT_AUTOMAKE: updated version number * eval.c: (initialize_eval): last fix was not sufficent increased dimension of pre_tropism arrays 2000-04-18 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * eval.c: (initialize_eval): fix out-of-bounds error 2000-04-16 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.1 * sjeng.c: (main) updated version output * configure.in: updated AC_OUTPUT AM_INIT_AUTOMAKE: updated version number * tests/Makefile.am: file added * books/Makefile.am: file added * Makefile.am: added SUBDIRS 2000-04-12 Gian-Carlo Pascutto <gcp@users.sourceforge.net> * Released 7.0 * Added/renamed files to comply with GNU standards (NEWS,BUGS,...) * Added automake/autoconf/autoheader/etc... support