A failed fetch fell back to the cached value with no limit, so an unreachable
blog API kept the post list rendering while every uncached slug returned 404.
Stale entries now survive an hour past their TTL, then get dropped and logged
at error so the outage surfaces the same way for every key.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Board with player bars and captured trays on the left, a game panel with
move list, status, and action buttons on the right. The page is locked to
the viewport (no scrolling); on phones the panel collapses into a slide-up
menu reachable from a slim status bar. Cache-busts the chess scripts too.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Clients now render from the state delivered with each move/update and
drop stale or echoed updates via a ply-version guard, instead of issuing
a full game-state fetch per event. Adds captured-piece trays, a material
advantage badge, a move list, a status line, and the mobile menu toggle.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
The move endpoint now returns the full resulting board state, and the
controller and CPU orchestrator broadcast it (plus captured pieces and a
ply version) over SignalR, so clients render from one payload instead of
re-fetching. Removes the client-driven hub relay.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Killer moves supply the quiet-move ordering the search lacked: ~1.45x faster at depth 8 (up to 1.88x in quiet positions) with identical play. Adds bench.ps1 and test/bench_main.cpp to time the search, with a BENCH_DISABLE_KILLERS compile toggle so the script can measure before/after.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
- Record moves in standard algebraic notation (GameState.SanHistory), built at
move time in ChessService (captures, disambiguation, castling, promotion,
en passant, and the check/mate suffix)
- Add PgnExporter.ToPgn (seven-tag header + movetext + result) and a
GET /api/chess/{gameId}/pgn endpoint
- Show a Copy PGN button when a game ends on both the play and watch pages,
prefetching the PGN so it works during the post-game cleanup window
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
- Track HalfmoveClock in GameState/ChessService (reset on captures and pawn moves)
- Emit the real halfmove clock in ToFen and add GameState.RepetitionHistory()
(prior positions since the last irreversible move) in ChessEngineHelpers
- Pass that history through IChessEngine.GetBestMoveAsync to the native engine;
Stockfish ignores it
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
- Refactor the search to negamax (single side-relative score + alpha/beta window)
- Add a shared, process-wide transposition table: lock-free XOR-verified slots,
persists across games, with depth-gated and difficulty-capped score reuse so a
weak bot can't borrow a stronger game's deeper analysis
- Drive the search with iterative deepening, seeding each depth's move ordering
from the previous one
- Seed prior-position history (Position::seed_history) over a new engine_best_move
history parameter so the engine detects threefold/50-move draws the FEN can't carry
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
- /watch live feed of active games with click-to-fullscreen and per-game back button
- Starting a new game forfeits the in-progress game; opponent is flagged the winner
- Watch CPU vs CPU self-play games; results shown for ~30s before cleanup
- Detect threefold repetition in the C# rules layer and end the game as a draw
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
Compile the native engine and copy it into Resources/ before publish so it
ships to prod automatically. Runner pinned to ubuntu-24.04 to match the
server's glibc.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
BlogService now fetches from Media.JoshHeaps.Net API via HttpClient
with in-memory caching (5-min TTL) and stale cache fallback.
Removed Markdig/YamlDotNet dependencies. All page models now async.
Co-Authored-By: Claude Opus 4.6 <[email protected]>
