Canada 2007

For discussing Olympiad Level Combinatorics problems
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Thanic Nur Samin
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Canada 2007

Unread post by Thanic Nur Samin » Mon Aug 01, 2016 5:51 pm

What is the maximum number of dominoes which can be placed on an $8 \times 9$ board if six are already placed as shown below?
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Hammer with tact.

Because destroying everything mindlessly isn't cool enough.

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asif e elahi
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Location:Sylhet,Bangladesh

Re: Canada 2007

Unread post by asif e elahi » Wed Aug 03, 2016 11:36 am

Divide the board into two equal parts by drawing a zigzagged diagonal and color each of them like a chessboard.

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