Rudim v2.1.3 - Aspiration Windows, Mobility, 2 Tier TT

Features

• two-tiered TT (4d38bb3)
• piece mobility scoring (f2d7e2e)
• aspiration windows (6c76e9e)

Fixes

• half & full move clock parsing for uci fen (52ab876)
• fix ply calculation (ff88ee8)
• fixed quiescence search interaction with pv & hash move ordering (feb4827)
• prevented TT cutoffs in pv nodes (481a6a6)

Maintenance

• decoupled movelist from board state (ac3926b)
• refactored PV table (0116246)
• updated docs, README (7003373, d8182c3, 1b55128)
• cleaned up todos, gitignore (16a8e69)

Statistics

Node Count Reduction (Same-Depth Comparison):
(Increase is because of the ply fixes, mobility scoring & aspiration windows - ELO increased even with more nodes traversed)

Position	Depth	v2.1.2 (Previous)	v2.1.3 (Current)	Reduction
Starting	9	73.9k	142.1k	0.52x
Advanced	11	100.6k	104.2k	0.97x
Kiwi Pete	8	151.6k	154.6k	0.98x
Endgame	13	169.7k	151.5k	1.12x

Tournament vs v2.1.2

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Results of Current Rudim vs Stable Rudim (10+0.1, NULL, NULL, 8moves_v3.pgn):
Elo: 81.37 +/- 22.69, nElo: 113.44 +/- 30.45
LOS: 100.00 %, DrawRatio: 33.60 %, PairsRatio: 2.95
Games: 500, Wins: 208, Losses: 93, Draws: 199, Points: 307.5 (61.50 %)
Ptnml(0-2): [6, 36, 84, 85, 39], WL/DD Ratio: 1.15
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Full Changelog: v2.1.2...v2.1.3