Feb 132009

9-Linked Ring Puzzle Sub-3 Minutes

Math Puzzles 1 Comment »

My home made ring puzzle is called classic Chinese puzzle, which in its essence is a binary system workout Math game. The status of any rings can correspond to sth like the on/off or 0/1 system. Duration : 0:3:57 addthis_url = ‘http%3A%2F%2Fwww.amusingmathpuzzles.com%2Fmath-puzzles%2F9-linked-ring-puzzle-sub-3-minutes’; addthis_title = ’9-Linked+Ring+Puzzle++Sub-3+Minutes’; addthis_pub = ”; Technorati Tags: 9-linked, binary, coordination, game, hand-and-eye, [...]

Posted by admin Tagged with: 9-linked, binary, coordination, game, hand-and-eye, jiulianhuan, math, Mathematical, mathematics, Mechanical, mental, puzzle, puzzles, recreation, ring, system, Workout, zhihuiyouxi, 九连环
Jan 232009

Re: 2718 2818 to 2009

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In another channel called 2d7182818, he/she has proposed six methods, concerning a math puzzle of changing 2718 2818 to 2009 in a mathematical way. It took me 9 minutes 33 seconds to come up with the 7th method and so I’d like to share with others. Duration : 0:3:13 addthis_url = ‘http%3A%2F%2Fwww.amusingmathpuzzles.com%2Fmath-puzzles%2Fre-2718-2818-to-2009′; addthis_title = ‘Re%3A+2718+2818+to+2009′; [...]

Posted by admin Tagged with: 2.7182818..., 2d7182818, Algebra, alphametics, arithmetic, backwards, crytarithm, log, Logarithm, math, mathematics, natural, problem, puzzle, shuxueyouxi, solving, strategies, working, zhihuiyouxi