Introduction
Place the numbers 1, 2, 3, ..., N*N on a NxN square such that the products of its rows, columns, diagonals and broken diagonals have certain properties.The Task
The contest is divided into 3 parts:5  1  8 
3  9  4 
7  2  6 
The horizontals products are:



The vertical products are:



The diagonals (topleft to bottom right, diagonal + two broken diagonals) products are:



The antidiagonals (topright to bottom left, diagonal + two broken diagonals) products are:


5 1 8 3 9 4 7 2 6
The Scoring System
When you submit a N*N square, the scorer computes two numbers:Part 1 (maximal square) 
Q=log_{10}(1(S/R)) Score = Q/(Q1) 
Part 2 (minimal square) 
Q=log_{10}(1(R/S)) Score = Q/(Q1) 
Part 3 (Kurchan square)  Score = R/D 
Total Scoring
Your score for every part is the sum of all single problem scores.Prizes
First prize for every part is $90, second prize is $45.Organization
As the organizers, we may change the rules during this contest.Thanks
Special thanks to: