ZarankiewiczDB,

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z(11,27) = 68

1111111
1111111
111111
111111
111111
11111
11111
11111
1111111
1111111
1111111

Found by the scaffold algorithm.

(0.87301347 seconds, score = 68, 4224 recursive calls, max depth = 35)

lower bound = 68, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

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

upper bound = 68, submitted on April 22nd, 2016 (link)

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