School-Safe Puzzle Games

Ancient coin arrangement puzzle

For this puzzle, arrange the 12 ancient coins in six rows, with four coins in each row.

Click on image below to play the puzzle in flash.

ancient coin puzzle

There are two winning configurations that I know of; will reveal submitted answers in a day or 2.

36 Comments to “Ancient coin arrangement puzzle”


  1. jason | Guest

    i made it look like a “I”, with two lines down the center. That way, there would be a line up top, and a line on the bottom, two vertical lines connecting the top and bottom, and the diagonals would be 5 and 6.


  2. parallax | Guest

    Not sure, but how about these:
    http://i225.photobucket.com/al...../coins.jpg


  3. Ian | Guest

    it is in the form of a H with a big middle part
    0 0
    0 0 0 0
    0 0 0 0
    0 0


    2 diagonal
    2 horrisontal
    2 vertical


  4. Ian | Guest

    didn’t come out right!!!!!!!!!!!!!!!
    just move the second ones on the top and bottom to the edge so it makes an H shape


  5. Shawn | Guest

    If you count diagonals and columns as “rows,” then you can make an “H” with 6 rows of 4 coins each:


    X X
    X X X X
    X X X X
    X X


  6. Shawn | Guest

    Oops, this system doesn’t count spaces.


    X….X
    XXXX
    XXXX
    X….X


  7. Rosey | Guest

    One is a six-pointed star. I’m working on another.


  8. Will | Guest

    I think:


    O O
    OOOO
    OOOO
    O O


  9. Will | Guest

    Oops, It diddnt come out as intended:


    o–o
    oooo
    oooo
    o–o


  10. Will | Guest

    Try again : If this does not work. I am trying to make an ‘H’ with 2 horizontal components.


    O O
    O O O O
    O O O O
    O O


  11. scott k | Guest

    can’t figure this out, the closest I can come is to make a circle haha


  12. tina | Guest

    Mine looks like an “H” with a double line going across. Same as the “I” but sideways.


  13. MoysieGT | Guest

    If you layout two sets of four coins horizontaly, with one set above the other. Then place a coin above the two end coins on the top row and a coin bellow the end two coins on the bottom row.


    This gives you Two Horizontals, Two Verticals and Two diagonals each with four coins.


  14. Bob Squirrel | Guest

    I think this is an easy one.


    the keyword being I


    As in, I.


    oooo
    oo
    oo
    oooo


    lol


  15. Bob Squirrel | Guest

    oooo
    ..oo
    ..oo
    oooo


    ok better


  16. suineg | Guest

    the problem is solve in any configuration that you can used any coin in 2 of the lines: i think this is one solution too:


    O O

    O O O
    O O
    O O O

    O O


  17. suineg | Guest

    i does not save the space wait a minute..


    O…….O…..O
    ……………….
    O……O……O
    ….O……O
    O……O……O
    ………………..
    O…….O……O
    i hope this work


  18. suineg | Guest

    cool, there are more than two ways of doing it, but always using each coin in two rows with possible combination of (diagonal,diagonal), (diagonal, vertical),(diagonal,horizontal),(horizontal,vertical).


  19. suineg | Guest

    i made seven ups


  20. suineg | Guest

    but with 14 coins, i made up the problems again


  21. suineg | Guest

    take the two middle coins of the upper row and the lower row and you get 6 rows of 4 coins with 12 coins


  22. Justin | Guest

    ok, it’s easier when you use a rather liberal definition of the word row


  23. suineg | Guest

    its like this:


    O………………O

    O……..O…….O
    …..O……..O
    O……..O…….O


    O………………O


  24. suineg | Guest

    ANOTHER SOLUTION I CALL 5 “TO” 5 IS THIS:
    ………O
    O…O….O…O
    …O………O
    O…O….O…O
    ………O


  25. suineg | Guest

    THE “I” AND THE “H” HAVE THE SAME DISPOSITION OF COINS, BUT THE WHOLE FORMATION ITS ROTATED, SO I COUNT THOSE TWO AS ONE, THE 5 TO 5 ITS TWO, AND THE FIRST I MADE AND HIS ROTATION MAKES THREE


  26. RK | Profile

    Joe- your 1st configuration was interesting; I think I follow, but just to be sure, can you explain what you did?


  27. RK | Profile

    The 2 answers I had in mind were the ‘I’ configuration, as several have pointed out above, and the ‘star’ arrangement, as Rosey and Suineg describe & parallax links to.


  28. Joe | Guest

    Just stack the coins in the 12, 3, 6, and 9 o’clock positions.
    http://i3.photobucket.com/albu.....zle1-1.jpg


  29. RK | Profile

    Joe- that works too, nice.


  30. suineg | Guest

    i found another way:



    ………………….OO
    ………………….OO
    ………………..OOOO
    ………………O..OO..O
    I THINK THIS WORK AND IS A DIFFERENT WAY.


  31. Kyle | Guest

    0 0
    0000
    0000
    0 0


    Left and Right rows (vertical), two middle rows (horizontal), top left to bottom right row (diagonal), bottom left to top right (diagonal).


  32. aaronhergert | Guest

    2 stacks of six coins each… I think the point of this puzzle was to think outside 2 dimentions. When you stack coins vertically you can count to four – three times in each stack.


    OOOOOO


    OOOOOO


    There are many great answers to this! Well done everyone!


  33. Brian | Guest

    I agree with aaron hergert if you stack them there are many ways this can be achieved. Including making the six four coin rows with only eight coins.
    Just form a box such as this however each coin has one coin on top of it while excluding the 4 unnecessarry ones:


    0 0


    0 0


  34. hussain | Guest

    I hav figured out the solution it tuk me quite a while but…i finally got da ansa here it is:


    0 0
    0000
    0000
    0 0


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