Arrange the numbers 1-9 in a 3×3 square using each only once

Brain Teaser for Engineers

Arrange the numbers 1-9 in a 3×3 square using each once only, according to the following rules:

  • exactly one prime number is directly above a prime number that’s two numbers less;
  • each pair of opposite corners sums to the same square total and exactly two columns share another square total;
  • exactly one prime number is directly to the left of a non-prime number that’s two numbers greater;
  • directly above exactly one square number is a number that’s four numbers greater; and
  • directly to the right of exactly one cubic number is a number that’s one number greater.

EMBED:

[contact-form 8 “brain-teaser”]


Two Sand Glasses | Back – Next | An unusual paragraph

About Doug Fred E.I.

Check Also

Calculate the velocity of water coming out of a double-entry pipe

If we know the volumetric flow rates of the water going into the two branches, …

10 comments

  1. Does this work too?

    7 8 9
    2 4 5
    1 6 3

Leave a Reply

Sahifa Theme License is not validated, Go to the theme options page to validate the license, You need a single license for each domain name.