**Tune of legacy TM (TCEC Finals inc/base time ratio)**
**LC0 version:** v0.31.0-dev (Ergodice-master, SHA: 0b7266a + PR1891 (first-move-bonus parameter added))
**LC0 options:** Network: 791557, MinibatchSize=224, Backend=cuda-fp16, MoveOverheadMs=0, StrictTiming=true
**SF options:** SF-dev (SHA: afe7f4d), Threads=12, Hash=256, "Move Overhead"=0, SyzygyProbeDepth=10, SyzygyProbeLimit=6
**Tuning ranges:** slowmover: [0.1,3.0], midpoint-move [10.0,80.0], steepness [1.5,12.0], immediate-use [0.1,1.0], first-move-bonus [0.0,3.0], book-ply-bonus [0.0,1.0]
**Tuning configuration:** acq function: mes, 101 iterations/2525 rounds/5050 games
**Hardware:** Ryzen 5 3600 (6x3.6GHz) + RTX 4090@300W
**Time control:** 72s/game+0.12s/move (LC0), 24s/game+0.04s/move (SF)
**Speed:** ≈500 KNodes/move (LC0)
**Book:** unbalanced 4-move book (80-100cp)
**Tablebases:** 6-man
**Adjudication:** 6-man TBs, -resign movecount=3 score=300, -draw movenumber=1 movecount=4 score=5
**Software:** chess-tuning-tools 0.9.3, Cutechess (restart=on)
**Optimum found:**
```
                 tuned  default
slowmover         0.751    1.0
midpoint-move    44.3     51.5
steepness         6.51     7.0
immediate-use     0.493    1.0
first-move-bonus  0.616    1.8
book-ply-bonus    0.200    0.25``````
TimeManager=legacy(slowmover=0.751,midpoint-move=44.3,steepness=6.51,immediate-use=0.493,first-move-bonus=0.616,book-ply-bonus=0.200)``````
Parameter                             Lower bound  Upper bound
--------------------------------------------------------------
TimeManager=legacy(slowmover)                0.23         2.89
TimeManager=legacy(midpoint-move)            13.0         73.0
TimeManager=legacy(steepness)                 1.8         11.3
TimeManager=legacy(immediate-use)             0.2          1.0
TimeManager=legacy(first-move-bonus)          0.0         2.63
TimeManager=legacy(book-ply-bonus)            0.0          0.9```