Puzzle Playground /
Non-Manipulative Puzzles /
Bugs in a Row
Ten bugs are arranged into
two rows of five bugs each. Move just four of them so that
five rows of four bugs appear. No option of two bugs at one
spot though a bug can be simultaneously a part of several
Pearls in the Grid 2
How many balls can you place on a square 8x8 grid so that no three of them
are lying on a straight line? What can be the possible limit?
Pearls in the Grid
Henry E. Dudeney
No two pearls from among those placed in the cells or a grid are in the
same row, column, or diagonal. Moving three of them it's still possible to
preserve the no-two-pearls-in-line arrangement.
Color the points of a "web"
into two colors - red and blue - in such a way that do not allow any
sequence of three points of the same color be found in a single line.
The Missing Link
Imagine you have six pieces of gold chain. It's a simple idea to join them
into an endless chain, but how to find the cheapest way for this?
Last Updated: June 17, 2010