lunes, 21 de febrero de 2011


Here you have a logic game for this weekend: BLOKUS You can play online. Enjoy it!


Two women started walking at today´s sunrise at constant speed. One of them walked from A to B and the other from B to A. They met at noon and they arrived to B and to A, respectively, at 4 in the afternoon and at 9 in the evening. What time did the sun rise last morning?

Five L´s

¿How many of the coloured pieces can be set in the 5x5 square?. If you think it´s impossible to set all of them, you have to explain why.
Move the pieces with the mouse. You can turn them pressing control key and clicking the mouse at the same time.
Play here


How can you time a period of 9 minutes, using two sand clocks, one of 4 minutes and one of 7?

domingo, 20 de febrero de 2011

Mirror Puzzles

Some mirrors to see how smart you are. Don´t lose your way....

viernes, 18 de febrero de 2011


Inside a hermetically sealed room there is a light bulb, and outside the room there are three switches. Only one of the three lights the bulb. While the door is closed, you can press the switches as often as you want. But when you open the door, you have to say which of the 3 switches lights the bulb.


This is not Fermat´s room but it may be a nice training for the weekend:
Click on the red square and move it with the mouse. When it touches the black border or a blue rectangle, you are dead.
18 seconds alive is a really good mark... for your mouse
Enjoy the link...

jueves, 17 de febrero de 2011

Don't be late!

You are in a room and you have the following materials: Two identical ropes and a lighter. You know that if you burn one of this ropes, it takes exactly one hour to burn completely.
You have to measure a period of 45 minutes, using only these items, How will you do it?
The ropes don’t have to burn at a uniform rate (half of the rope doesn't have to burn in half an hour necessarily)

miércoles, 16 de febrero de 2011

Can you give the answer?

8, 5, 4, 9, 1, 6, 7, 3, 2

It's a sequence of numbers. You have to find the pattern.

martes, 15 de febrero de 2011

Wich colour is the bear?

If a bear starts in one spot walks one mile south one mile east and one mile north and ends up in the same spot he started, what color is he?

lunes, 14 de febrero de 2011


In this game, you have to mark N squares so that any two of them are situated in the same horizontal, vertical or diagonal line.
The program is set for N=8,but you can change and start from easier level and increase the diffilculty
Enjoy it clicking here

sábado, 12 de febrero de 2011

Do you know the film?

You can see the trailer here

viernes, 11 de febrero de 2011


Welcome to the project "La Habitación de Fermat" blog. You can visit our web page too: click here