Mathematical puzzles

Puzzles, situation puzzles and recreational mathematics.

situation puzzles and recreational mathematics. Neuron juice

Neuron juice.

The important thing is not to stop questioning. (Albert Einstein.)


Libro de Martín Gardner, los acertijos de Sam Loyd 


Martin Gardner was a great science writer famous for the publication of numerous books on recreational mathematics translated into many languages.


One such book , its cover attached to this riddle is " The riddles of Sam Loyd ".


Sam Loyd (Samuel Loyd ) was a chess player occupied the 15 place worldwide, author of ingenious chess problems and puzzles maker of recreational mathematics.


One of his most famous works is dedicated to Tangram , with 700 designs.


One of his mathematical puzzles is as follows: Is it legal the marriage of a man with his widow's sister ?



 -- Solving the riddle of Sam Loyd --