v0.4.3

Features

• (uci) Let the reductions argument search a suite of its own [bench 4162584]
• (eval) Fit the twelve piece square tables to our own games [bench 4070288] [elo +54 ±13 (sprt [0, 10] passed, 2000 games, 10+0.1, vs d17622f)]
• (eval) Add the mobility term with its eight weights at zero [bench 4070288]
• (eval) Fit the eight mobility weights to our own games [bench 4053745] [elo +12 ±8 (sprt [0, 10] passed, 4000 games, 10+0.1, vs 96bad35)]
• (eval) Add a basic king safety term from pawn masks [bench 4053745]
• (search) Rank the quiet moves by a cutoff rate [bench 4020251] [elo +22 ±13 (sprt [0, 10] passed, 1500 games, 10+0.1, vs 96bad35)]
• (eval) Add the pawn storm to the king safety term [bench 4020251]
• (eval) Fit the fourteen king safety weights to our own games [bench 3882989] [elo +44 ±15 (sprt [0, 10] passed, 1500 games, 10+0.1, vs ccd1804)]

Performance

• (eval) Count mobility only where a weight is not zero [speed +5.7% (bench nps, 41 interleaved rounds vs 54a6ceb, spread 20.1%)] [bench 4053745]
• (eval) Cache the king shelter by the pawn key and the two king squares [speed +4.9% (bench nps, 21 interleaved rounds vs 114fc59, spread 11.1%)] [bench 3882989]
• (board) Generate the evasions rather than filter them [bench 3882989] [speed +5.4% (bench nps, 21 interleaved rounds vs acf076d, spread 20.5%)]
• (search) Spare the swap two walks it always takes [bench 3882989] [speed -1.0% (bench nps, 21 interleaved rounds vs baf7a97, spread 14.6%)]

Refactor

• (eval) Give four pieces an endgame table of their own [bench 4162584]

Documentation

• (search) Say what the pruning threshold covers under its own weights
• (search) Re-measure the figures beside the reverse futility margin
• (eval) Record what the sealed games say about the king safety fit

Development

• (bench) Add a recorder module the three recorders share [bench 4162584]
• (ci) Play a panel of engines rather than one lineage
• (docs) Record that the reduction floor guards cheap nodes
• (docs) Record that the wider pruning band bought no strength
• (ci) Let a run play a second opening book
• (ci) Let build_at.sh be told how to build and what to copy
• (ci) Take the name the calibrated engine plays under as an input
• (ci) Take what a match is played on as inputs
• (ci) Take the release note marker as an input
• (docs) Move the instrument reference out of DEVELOPMENT.md
• (ci) Make the four match tools a package
• (ci) Declare the test pins in the package rather than beside it
• (ci) Give the match tools a json mode
• (bench) Print what a position's evaluation is made of
• (eval) Pin the piece square tables on shape rather than on numbers
• (bench) Add the evaluation tuner and its loss harness
• (bench) Split the tuner's corpus into three groups by game
• (bench) Count the tuner's phase shares by appearance
• (docs) Say that the tuner splits by game and seals a fifth
• (bench) Label a tuner position from its own group alone
• (docs) Take the run results out of the instrument reference
• (bench) Read a terms row whose id holds a space
• (bench) Keep a terms row whose id opens with the header word
• (deps) Bump smallvec from 1.15.2 to 1.16.0 in the cargo group
• (bench) Carry each game's run and round on its corpus row
• (bench) Split the tuner's groups by the opening pair
• (bench) Add a final command that scores the sealed group once
• (bench) Add a learning curve to the tuner
• (ci) Pin how long a run's games are kept
• (bench) Harvest the strength runs' games into the corpus
• (ci) Put the match report in the log as well as the summary
• (docs) Say that a title names the thing it changed
• (docs) Replace the em dashes with the punctuation the house rule asks for [bench 4053745]
• (docs) Bring three claims up to date with the code [bench 4053745]
• (ci) Print the gauntlet rating margin as a 95% interval
• (release) Print the whole Speed trailer in the changelog
• (release) Read the stated benches against their pins before a release
• (ci) Hold an Elo trailer to a base that still resolves
• (docs) Date the 2332 gauntlet and state one game count
• (bench) Add the attention model's fitting script
• (bench) Hold the mobility weights through a fit of a later term
• (tactics) Say what the strategic suite's total can and cannot resolve
• (release) Play fifty games against each rung of the gauntlet
• (release) Take the gauntlet's bottom rung off and add one above the top
• (release) Swap the bottom stash for a fifth lineage at the top
• (deps) Bump taiki-e/install-action in the actions group

Docker image: ghcr.io/aywrite/arche-lichess-bot:v0.4.3 (sha256:7dc55ac6cb581019c0ed1d0c9edb3ba3309b4f1d69429ff08609b0ea4827a3ad)

Performance compared to v0.4.2 | +133 ±29 Elo (500 games)

Estimated rating | 2456 ±34 (95%) on the ccrl blitz scale (400 games)