Release v0.4.5 · aywrite/arche

(eval) Count the enemy pieces bearing on the king's ring, at zero weight [bench 3868987] [elo not measured]
(eval) Fit the king attack zone weights on the archive [bench 4102609] [elo +35 ±16 (sprt [0, 10] passed, 1000 games, 10+0.1, vs 4b1b80f)]
(search) Add aspiration windows at the root [bench 52298065] [elo +19 ±11 (sprt [0, 10] passed, 2000 games, 10+0.1, vs dcc9688)]
(search) Add a reduction table by depth and move count [bench 51236454] [elo +19 ±11 (sprt [0, 10] passed, 2000 games, 10+0.1, vs 5902681)]

(eval) Take the king attack counts in the mobility walk [bench 4102609] [speed +5.7% (bench nps, 21 interleaved rounds vs 02432c9, spread 12.2%)]
(search) Skip the stack sort for a list with no key and rotate one with a single key [bench 4102609] [speed +0.4% (bench nps, 7 interleaved rounds vs 6f32cbc, spread 4.1%)]
(board) Probe one slider line for legality where the move vacated a line through the king [bench 4102609] [speed +0.3% (bench nps, 7 interleaved rounds vs 0df6a31, spread 5.9%)]
(search) Build the late move node only where the node admits a reduction [bench 4102609] [speed +1.2% (bench nps, 7 interleaved rounds vs b10e2c0, spread 6.3%)]
(search) Put the transposition table on huge pages [bench 52298065] [speed -1.1% (bench nps, 5 interleaved rounds vs 273c5eb, spread 3.6%)]

(uci) Read an instrument's suite in one place
(search) Move the late move reductions and pruning into one module [bench 4102609] [elo not measured]
(search) Make the principal variation exemption explicit [bench 4102609]
(search) Rename Edges to RootBounds and pin how the bits travel [bench 4102609]
(board) Derive the move number from the ply rather than keeping it [bench 52404553]
(eval) Fold every leaf term through one weigh [bench 52404553]
(board) Read recompute_checkers off the attacker helpers [bench 52404553]
(board) Hold the castle rights as four bits [bench 52404553]
(search) Share the sampling key, the share and the reference replay across the recorders [bench 52404553]
(uci) Read the depth and the taint word in one place each
(uci) Read every spin option through one reader from its row
(eval) Give the shelter and the pawn structure one direct mapped cache type [bench 52298065] [elo not measured]

(search) Correct the claim that fail low nodes are not stored
(search) Shorten the comments in the search, the generator and the suites [bench 4102609]
(eval) Shorten the comments in the evaluation and the tuner [bench 4102609]
(board) Shorten the comments in the board and make/unmake [bench 4102609]
(uci) Shorten the comments in the protocol crate and its tests
(search) Record a third sort shape and the stored static evaluation as measured and priced
(uci) Give the terms row's formula every leaf term and the vector its width
(search) Give the taint policy result its games and its control
(eval) Correct what the whole key costs a cache entry
(uci) Say which spin values are clamped and which are refused

(search) Store and probe a mate score at a nonzero ply
(tactics) Add a floor under the suite and a list of accepted losses
(uci) Check an instrument takes the sampling rate it was given
(docs) Answer the mobility budget bullet and record two rejected arms
(ci) Pin the three tools that prepare a release
(uci) Pin what a terms argument takes and how it refuses
(uci) Name a suite the bench does not use when checking one is read
(bench) Split the attention fit by group and let a feature be dropped [bench 3868987]
(ci) Refuse to resolve a ref under a trigger that carries secrets
(ci) Shorten the comments in the workflows, the scripts and the manifests
(board) Add the three evasion shapes to the perft edge cases
(ci) Call the match orchestration out of mache rather than inlining it
(deps) Bump smallvec from 1.16.0 to 1.16.1 in the cargo group
(bench) Raise the bench depth from 7 to 9 [bench 52404553]
(release) Move the gauntlet up to bracket 2700 and add Blunder, Inanis and Zahak
(deps) Bump the mache actions from v0.2.0 to v0.3.0
(docs) Correct the speed report example and eight stale claims
(ci) Date the coverage estimate and pin the v2 figure to its commit
(docker) Name every option the engine advertises and raise Move Overhead

Docker image: ghcr.io/aywrite/arche-lichess-bot:v0.4.5 (sha256:9c73bd7f062e51698311b382c411efa0a5a4230352b3424f8b45b7b791b5d9de)

Performance compared to v0.4.4 | +68 ±24 Elo (500 games)

Estimated rating | 2626 ±30 (95%) on the ccrl blitz scale (400 games)

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