Heads and tails
Rules
Click on one of the two coins of 50 cents euros, either on ' PILE' on the left, or on ' FACE' on the right. At the same time the computer makes in the same way.
The cross
corresponds to your choice and the circle 
to the choice of the computer, when you see them coupled 
it is that you lost the point, the counter 'ordi' increased by a point. But if you see separate, it is you who gain the point, the counter 'player' was incremented by a point.
The computer marks 1 point when your choice and his is identical for it. When the two choices are different, you mark 1 point.
For example, if you choose Pile and if the computer chooses also Pile, it is the computer which marks the point.
But if you choose Pile and the Face computer, it is you who mark 1 point
The computer does not choose its blows completely randomly. If you always play the same blows and that the computer realizes there, it will adapt to try to gain (choose for him the strategy 2 and play only of the ' pile' to see what arrives).
However by varying your blows will mislead it easily to you and you will succeed in gaining a maximum of plays.
The cross
corresponds to your choice and the circle to the choice of the computer, when you see them coupled it is that you lost the point, the counter 'ordi' increased by a point. But if you see separate, it is you who gain the point, the counter 'player' was incremented by a point.
The computer marks 1 point when your choice and his is identical for it. When the two choices are different, you mark 1 point.
For example, if you choose Pile and if the computer chooses also Pile, it is the computer which marks the point.
But if you choose Pile and the Face computer, it is you who mark 1 point
The computer does not choose its blows completely randomly. If you always play the same blows and that the computer realizes there, it will adapt to try to gain (choose for him the strategy 2 and play only of the ' pile' to see what arrives).
However by varying your blows will mislead it easily to you and you will succeed in gaining a maximum of plays.
Game
Some interesting pages!
Games : The morra, games of Nim, Chomp, Kayles and Northcott games
Optical illusions
Stereograms Sids.
ambigrams
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J'essaie de répondre aux questions posées, mais ne lis pas les documents mathématiques amateurs, pas plus que je ne donne mon avis sur les démonstrations des conjectures de Collatz ou autres. Je ne lis pas les documents word, je ne corrige pas les programmes informatiques et depuis des années je n'utilise plus de tableur.