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Bugs in a Row
Bugs in a Row
after Lewis Carroll
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 rows.
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Pearls in the Grid 2
Pearls in the Grid 2
by Sam Loyd
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?
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Pearls in the Grid
Pearls in the Grid
by 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.
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3-vs-2-feat-1
3-vs-2-feat-1
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.
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The Missing Link
The Missing Link
by Sam Loyd
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?
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Last Updated: June 17, 2010 top
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