## IEEE Weekly Puzzle #31 – Number of Digits

February 16, 2015

You are asked to calculate 2^2015 and 5^2015 using a computer, and then to write down your results on a piece of paper. If you spend 1 second writing each digit of the results,

## PUZZLE… PUZZLE… PUZZLE…

February 16, 2015

SAMURAI SUDOKU & SUDOKU Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other

## IEEE Weekly Puzzle #31 – Number of Digits

February 9, 2015

You are asked to calculate 2^2015 and 2^2015 using a computer, and then to write down your results on a piece of paper. If you spend 1 second writing each digit of the results,

## PUZZLE… PUZZLE… PUZZLE…

February 9, 2015

SAMURAI SUDOKU & SUDOKU Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other

## PUZZLE… PUZZLE… PUZZLE…

February 2, 2015

SAMURAI SUDOKU & SUDOKU Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other

## PUZZLE… PUZZLE… PUZZLE…

December 30, 2014

ABC PATH & SUDOKU Here are four puzzles: two ABC Path puzzles and two Sudoku puzzles. Fill in the Sudoku puzzles so that each column, row and 3×3 grid contains all of the digits

## PUZZLE… PUZZLE… PUZZLE…

December 22, 2014

ABC PATH & SUDOKU Here are four puzzles: two ABC Path puzzles and two Sudoku puzzles. Fill in the Sudoku puzzles so that each column, row and 3×3 grid contains all of the digits