Problem 58453. ICFP 2022 - Merging 6x6 regions

The ICFP2023 Challenge is Jul 7-10, registraion opens late June. Updates at TwitICFP2023. These contests are insanely complicated and competitive. The challenge evolves every 12 hours with new files and rule updates.
The ICFP2022 HomePage has details of the RoboPaint contest. Twit2022, WriteUps, PriorEvents, Spec, ImageSubmissions, Puzzles, SawickiSolutions are useful links. Posted 6/19/23.
This challenge of Merging regions is addressed by RGB Team as a second step prior to Local Optimization.
This challenge is to return a Merged set of Contiguous regions with good rgb values. Matrices G6idx and idxrgb will contain updated contents. Original image region indices and rgb values for 6x6 squares will be provided for 21.png. Total score, contiguity, and number of regions will be evaluated. The score must be less than 19000 using less than 60 contiguous merged regions. See template for details of provided inputs.
Outputs: G6idx [67,67] matrix of pointers to idxrgb
idxrgb [67*67,3] values of r g b for region blocks
Solve

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100.0% Correct | 0.0% Incorrect
Last Solution submitted on Jun 23, 2023

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