Archive for the ‘Puzzle’ Category

Puzzle: Brazil Vestibular Question #20

Monday, September 9th, 2013


The puzzle is thus:  You place a 2×2.  Each time you move the 2×2 square you change the colors in the following:

  • The whole 3×3 starts off grey.
  • Within the 2×2 grey goes to blue, blue goes to yellow, yellow goes to grey

A sequence of moves were made that resulted in the 3×3 with the question marks in it. Which of the multiple choices below it is a viable possibility to fill in the squares with question marks?

Solution of the puzzle by a much more direct route from the OBMEP

Jigsaw – Suhaili with Tow

Saturday, December 8th, 2012

Features used

  • Frame – first as always
  • Boats
  • Orange and white reflecting on the water
  • water line
  • big / close waves due to the boat the photo was taken from
  • brown / grey of the water
  • white/ grey of the sky – gradient

Jigsaw Geometric

Saturday, December 8th, 2012

Oobiedude NYC Jigsaw Puzzle

Monday, September 10th, 2012

Ok I was a moron. I wasted much time doing this puzzle.  Why are they so addicting?