Thư giãn với các bài toán đố

Tự dưng đọc 1 blog có mấy câu toán đố, thấy nhớ lại cái thời học sinh rất say mê giải toán đố. Tìm thử 1 vài website để thử cảm giác thử thách trí tuệ, nhiều bài cũng hóc phết.

Dưới đây là vài link chia sẻ mọi người, đỡ mất công tìm kiếm.

http://www.cs.cmu.edu/puzzle/

http://www.mathsnet.net/dailypuzzle.html

http://www.puzzles.com/Projects/LogicProblems.html

http://www.meanderingmedley.com/annaka/whimsey/puzzles/weeklypuzzle/index.shtml

http://www.afunzone.com/

http://www.theproblemsite.com/math_games.asp

Có 2 quyển ebook.

536.Math.Puzzles

IQ Brainteasers is the ultimate test of your brain power. Packed with over 300 puzzles, your visual, mathematical and lateral-thinking abilities will be stretched to the limit. Also included are some Japanese puzzles – Sudoku, Bridges and Slitherlink – which will really get your brain cells working.
Divided into puzzle types, the sections are not in any order of difficulty – you are just as likely to find two easy puzzles side-by-side as a more tricky one next to a simple one. Some will require a degree of mathematical ability, others you just need to use your eyes, while others still will need some knowledge of words.

Rapidshare: http://rapidshare.com/files/162074136/IQBrainteasers.rar

Easyshare: http://w18.easy-share.com/1702362580.html

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