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Matrix for z(15,23)

11111
111111
111111
111111
11111
111111
11111
11111
11111
11111
11111
11111
11111
11111
111111

Scaffold: $p=5$, $q=3$, $\mathbf{m} = (2,2,2,2,2)$, $\mathbf{n} = (4,4,4)$, $m_O=1$, $n_O=5$.

(86.10061527 seconds, score = 80, 1140345 recursive calls, max depth = 35)

weight = 80, submitted by Andrew Kay on April 22nd, 2016 (link, raw)

Related: Matrix 2076