Tuesday Puzzle
Bill Earl
This puzzle is from Erich Friedman:
Add some digits before or after the digits in the grid so that each row and column sums to 100.
Tuesday Puzzle
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Re: Tuesday Puzzle
#2Re: Tuesday Puzzle
Alex Y
If I'm correct, when you express each space as a product of primes, it uses the all prime factors below 18, except for 11.
Re: Tuesday Puzzle
#3Tuesday Answer
Bill Earl
I haven't had time to decode your answer Alex. It's robot season and the regional tournament is Saturday. Here is the answer:
Re: Tuesday Puzzle
#4Re: Tuesday Answer
Alex Y
That's what I got. There were very limited (3) possibilities for the first row; the first I tried (74) came to a quick dead-end, and the second led to the solution shown.