ZarankiewiczDB,

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Matrix for z(11,15)

11111
1111
1111
1111
1111
1111
1111
1111
1111
11111
11111

Found by the scaffold algorithm.

(0.092442754 seconds, score = 47, 328 recursive calls, max depth = 18)

weight = 47, submitted by Andrew Kay on April 22nd, 2016 (link, raw)