6 May
2013
6 May
'13
6:42 a.m.
Keith F. Lynch:
It tried all 1,679,616 (6^8) possible ways of sticking zero or more plus signs, minus signs, times signs, divide signs, and decimal points into PONDER=THIS
… thus arbitrarily excluding, I think, a decimal point preceding a given string of digits.
The unique solution to the meta-problem is a single division sign and a single minus sign. Insert those into PONDER=THIS so that it has a unique solution.
A quick Mathematica hack suggests PON-DER=TH/IS meets the requirement.