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  • Tic Tac Toe Puzzle - Who can solve this fastest?

    Ankita Katdare

    Ankita Katdare

    @abrakadabra
    Updated: Apr 3, 2015
    Views: 1.6K
    Most of us are aware of the game of Tic-Tac-Toe. A large square is divided into 9 equal sized small squares.
    • Two players taken turn in placing their mark in a small square.
    • The first one to get 3 marks in a horizontal, vertical or diagonal line wins.
    • A player will always place his or her mark in a line that already contains:
    1. two of his own marks or
    2. two of his opponent's marks (Here 1 has priority over 2).

    Following image has game played by two friends and only the last mark has not been filled in -
    IMG_20150404_101907_HDR_1428122982420

    Which mark X or O wins the game?
    Reply with solutions only if you can explain the answer. 😁    ​
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    Replies
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Replies

  • Ramani Aswath

    Member • Apr 4, 2015

    Something missing. Who plays the next move X or O?
    If X, the top right square is filled with an X, winning and blocking O from winning too.
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  • Ankita Katdare

    Administrator • Apr 4, 2015

    I will wait for a few more answers, before typing the correct solution here.
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  • Anoop Kumar

    Member • Apr 4, 2015

    Either of player (O or X) with the next move will win by placing at right upper corner.
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  • durga ch

    Member • Apr 4, 2015

    I think O wins

    if x started the game, the sequence of game would have been different.
    the next move is 7th move and O started , so O wins
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  • rahul69

    Member • Apr 4, 2015

    The one who started first will win.
    Also seeing the pattern it is clear that one of the player didn't strictly followed all rules (ie made a mistake) so it is difficult to tell who started first.
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  • Ankita Katdare

    Administrator • Apr 4, 2015

    All I can say is only 1 of you has got the correct answer so far. Will want to see a complete step by step solution.
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  • Ankita Katdare

    Administrator • Apr 8, 2015

    Any more takers for this?
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  • Gagandeep Singh Deol

    Member • Apr 12, 2015

    0 played the first move on a[2][1].
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  • Gagandeep Singh Deol

    Member • Apr 12, 2015

    suppose the matrix a[3][3] exists with top left square as a[1][1],
    then first move is by 0 on a[2][1], second move by X on a[2][2],
    third move by 0 on a[1][2], fourth move by X on a[3][2],
    fifth move by 0 on a[1][1], now X gets tricked and puts X on a[3][1],
    so on next move 0 on a[1][3] is winning move !!
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  • Bhargav001

    Member • May 8, 2015

    One who has taken first move will win
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  • Bhargav001

    Member • May 8, 2015

    One who has taken first move will win
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  • Sam Denis Wilson

    Member • May 8, 2015

    X
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