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    \$\begingroup\$ Next task: Write a program that generates the program with the most unique values. Then golf that program. :) \$\endgroup\$ Commented Jul 8, 2015 at 21:01
  • \$\begingroup\$ @RetoKoradi The first part's what I did. The second... later :P \$\endgroup\$ Commented Jul 8, 2015 at 21:18
  • \$\begingroup\$ @Sp3000 I finished the brute forcing of this style of solution. There's 6+7*5%6%4, 6+7*4%6%5 and 6+8*4%6%5 (left to right, top to bottom), and nothing else. \$\endgroup\$ Commented Jul 9, 2015 at 3:32
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    \$\begingroup\$ @isaacg there are more 23-point solutions if you throw in some more operators, like &|^ \$\endgroup\$ Commented Jul 9, 2015 at 4:20
  • \$\begingroup\$ Just a random thought: Have you tried allowing + and - in the corners/center? Since they are unary as well as binary operators, that should still result in all valid expressions. Unlikely that it will result in a better solution, but at least it expands the search space. Hmm, actually, it might be a problem because you could end up with sequences of operators. \$\endgroup\$ Commented Jul 9, 2015 at 18:37