| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2014-04-21 | chess-legal-plies: Simplify the :color case. | Mario Lang | |
| 2014-04-21 | chess-pos-search*: New function. | Mario Lang | |
| Search for several pieces in one swipe of the board, returning an alist of pieces and their indices. Use this in chess-legal-plies for the common case where we want all legal plies for a certain color makes the testsuite time go down to 9m57s. | |||
| 2014-04-21 | chess-perft.el: Add another test case with depth 5. | Mario Lang | |
| Now that our execution time has been reduced significantly, add a bigger test case to improve the testsuite coverage. "make perft" now takes 10m33s. | |||
| 2014-04-21 | chess-search-position: 20% performance improvement by treating ray pieces ↵ | Mario Lang | |
| commonly. When we search for pieces of a certain color, we iterate over all results from all pieces of that color. However, this is redunant as we end up to check the compass rose twice, once for bishops/rooks and once for queens. We actually just need to check all 8 directions once and keep a list of what piece type can move in which direction. | |||
| 2014-04-21 | chess-search-position: Move castling check for rooks out of the direction loop. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Eliminate unused conditional. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Collapse two chess-pos-piece-p calls into one chess-pos-piece ↵ | Mario Lang | |
| call. Unexpected but true, this increases performance noticeably. | |||
| 2014-04-20 | chess-pos.el: Refactor/simplify 10x12 code. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 3 more chess-incr-index calls to chess-next-index. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 2 more calls to chess-incr-index to chess-next-index. | Mario Lang | |
| 2014-04-20 | chess-pos.el: Convert 4 more chess-incr-index calls to chess-next-index. | Mario Lang | |
| 2014-04-19 | chess-knight-directions: New constant. | Mario Lang | |
| 2014-04-19 | chess-pos.el: Define constant lists of directions various pieces can move to. | Mario Lang | |
| This avoid useless consing and makes things a bit more reusable. | |||
| 2014-04-19 | chess-next-index: A 10x12 mailbox based function for advancing indices. | Mario Lang | |
| This one is a lot faster then chess-incr-index. Casual replacing in some caller sites yields about 30% performance improvement, more to be gained if more callers are converted. | |||
| 2014-04-19 | chess-polyglot.el: Docs + one assert. | Mario Lang | |
| 2014-04-19 | chess-perft: Interactive spec and progress info. | Mario Lang | |
| 2014-04-18 | Silly typo. | Mario Lang | |
| 2014-04-18 | chess-perft: Refactor to avoid repeatedly visiting the same list of plies at ↵ | Mario Lang | |
| depth 1. | |||
| 2014-04-18 | Remove obsolete note. | Mario Lang | |
| 2014-04-18 | chess-perft: Simplify en-passant checks. | Mario Lang | |
| 2014-04-18 | chess-pos-move: Really remove castling ability if rook has been moved. | Mario Lang | |
| This one was *very subtle. Looking at the code, we already tried to prevent this case, and it evenw orked for *some* instances. The problem is that castling flags are boolean in the position structure, chess-pos-can-castle determines the rook location from the position if castling flag is true. But we have already moved the rook around in chess-pos-move before we do the fixup stuff, so chess-pos-can-castle is just wrong in some cases. Fix is simple, call chess-pos-can-castle before we modify the position, and use these values later. This fixes the remaining perft mixmatches. | |||
| 2014-04-18 | chess-perft.el: Count en passant and promotion plies. | Mario Lang | |
| Also, add ERT tags to selectively run tests which validate a certain ply property, like :castle or :check. | |||
| 2014-04-18 | Add the perft makefile target for easy running of the testsuite. | Mario Lang | |
| 2014-04-18 | chess-legal-plies: It is illegal to castle if the king is in check right now. | Mario Lang | |
| 2014-04-18 | chess-legal-plies: Stop generating duplicate castling moves. | Mario Lang | |
| 2014-04-18 | chess-legal-plies: Generate R and B promotions in addtion to Q and N. | Mario Lang | |
| 2014-04-18 | chess-perft.el: ert tests to find move generator bugs. | Mario Lang | |
| 2014-04-17 | chess-perft.el: move generator testing. | Mario Lang | |
| 2014-04-17 | chess-ics.el: Add guest login support for chess.net. | Mario Lang | |
| 2014-04-16 | chess-ai.el: Spare computing time by consulting the opening book. | Mario Lang | |
| 2014-04-16 | chess-polyglot.el: Ship default book file. | Mario Lang | |
| Also, move some customisation settings from chess-uci to chess-polyglot. | |||
| 2014-04-15 | chess-ai.el: Oops, cl-delete-if only at runtime. | Mario Lang | |
| 2014-04-15 | chess-ai.el: No need for cl-sort. | Mario Lang | |
| 2014-04-14 | Build fruit and glaurung modules. | Mario Lang | |
| 2014-04-13 | chess-ai.el: Require cl-lib at runtime for cl-sort. | Mario Lang | |
| 2014-04-10 | chess-ai.el: Better top-level move ordering and quiescence pruning. | Mario Lang | |
| 2014-04-10 | chess-ai.el: Rename functions and fix a subtle bug in quiescence search ↵ | Mario Lang | |
| termination. | |||
| 2014-04-10 | chess-ai.el: Cleanup. | Mario Lang | |
| 2014-04-09 | chess-ai.el: Quiescence search. | Mario Lang | |
| This change finally fixes the internal Emacs Lisp based AI enough to be an interesting opponent. Search is of course very slow, and rather shallow (2 plies + quiescence by default) but the AI can finally defend itself against simple attacks, and sees opportunities as expected. | |||
| 2014-04-09 | chess-legal-plies: If chess-ply-allow-interactive-query is nil, generate Q ↵ | Mario Lang | |
| and N promotions. | |||
| 2014-04-08 | chess-ai.el: Ply ordering + a bit of progress reporting. | Mario Lang | |
| 2014-04-08 | chess-ai.el: Simpler search function, progress reporter and bug fixed. | Mario Lang | |
| 2014-04-07 | chess-search-position: Also consider opponent king moves when checking for ↵ | Mario Lang | |
| check. With this the rule that there always needs to be one square between kings is honours in chess-legal-plies. Without this fix, a move next to the opponents king was considered legal. | |||
| 2014-04-06 | TODO items done since we switched to tabulated-list-mode. | Mario Lang | |
| 2014-04-04 | Fix docstrings. | Mario Lang | |
| 2014-04-03 | chess-ics.el: Pacify compiler. | Mario Lang | |
| 2014-04-03 | chess-ics.el: use tabulated-list-mode. | Mario Lang | |
| This eliminates roughly 100 lines of boilerplate code. | |||
| 2014-04-02 | ICC seek removal was broken as well. | Mario Lang | |
| 2014-04-02 | Try to improve the promotion situation on ICS by allowing chess-ply to query ↵ | Mario Lang | |
| for the promotion piece. | |||
| 2014-04-02 | Fix ics seek ads removal. | Mario Lang | |
 |
index : emacs-chess.git | |
| My fork of the Emacs-Chess package. A work-in-progress. | Craig Jennings |
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