ZarankiewiczDB,

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z(10,33) = 72

111111111
1111111
1111111
1111111
111111
111111
111111
111111
111111111
111111111

Found by the scaffold algorithm.

(0.113207964 seconds, score = 72, 373 recursive calls, max depth = 44)

lower bound = 72, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

By Roman's bound with $p = 2$. [Rom75]

upper bound = 72, submitted on April 22nd, 2016 (link)

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