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didericis 1aa76a5226 Plot the n=12 size-7 universal breaker tile
Add plot_breaker_tile.py and figure for word=UUUDUDUDUDUD bite=(3,11): structure
(7 up teeth = size-7 outer rim, bite (3,11), singleton downs d5,d7,d9) plus a
Kempe-balanced colouring. Reconfirms the outer rim realises 9/10 admissible size-7
necklaces, never 0001112 -- the lone tile that empties the size-7 universal at n=12.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-11 23:51:36 -04:00
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