## JIGSAW SUDOKU

Here are five Jigsaw Sudoku puzzles. Fill in the numbers so that each row, column and jigsaw box contains all of the digits 1 to 9. Submit the contents of the diagonal going from

Read More »## Bilkent IEEE Weekly Puzzles

#2 – One Thousand Cubes A 10x10x10 cube is assembled by putting together 1,000 unit cubes. Following this, each side of the assembled cube is painted blue. How many of the unit cubes will

Read More »## Sudoku

Here are five Sudoku puzzles. Fill in the numbers so that each row, column and 3×3 grid contains all of the digits 1 to 9. Submit the contents of the diagonal going from the

Read More »## Bilkent IEEE Weekly Puzzles

#1 – Five-Digit Number A is a five-digit number constituted of five different figures such that the multiplication of its last three digits is equivalent to the number formulated by its first two digits.

Read More »## SAMURAI SUDOKU

The Samurai Sudoku consists of five grids, with one in the center and the other four overlapping each corner grid of the central one. Each grid has the same rules as a classic Sudoku:

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