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Welcome to the PuzzleUp; a problem and games site where each week a different problem is put accross for you to think on and try to solve.

The fundamental aim of this site is to support and raise persons of the information age who have highly developed capabilities of thinking, perceiving and problem solving and who are able to interpret different cultures and contribute to contemporary civilisation.

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Hoping that wisdom, peace and love will master the future of the world we live in.

Emrehan Halici



No: 11       October 18, 2017


ODD-EVEN

ODD-EVEN

You will play a game, where you place “0” and your friend places “1” on a 7x7 chess board. You will start the game and both of you will place numbers on the empty squares alternatively. When the entire board is full, sums of the numbers on each row and column are noted. Among the 14 sums, you will get a point for each odd sum and your friend will get a point for each even sum.

If both you and your friend play perfectly, what is the maximum points you can get?

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Today's Bonus: 4 points

Popularity: 70.8 %     Difficulty: 83.3 %    

1.FRANCE Bulot Francois482
1.FRANCE Pierre Forest482
1.FRANCE Daniel Collignon482
1.FRANCE Vincent Lefevre482
1.TURKEY Gunes Bayir482
1.FRANCE Nicolas Sigler482
1.UNITED STATES Chris Becker482
1.TURKEY Hakan Summakoglu482
1.ITALY Jean Manuel Morales482
1.RUSSIAN FEDERATION Alexander Bichek482
[ Score Table ]
1. ODD-EVEN 70.8
2. LOTTERY 68.3
3. FOUR DIGITS 63.6
4. CLOCKS 60.4
5. DOUBLY SORTED NUMBERS 60.0
6. SHIRT NUMBERS 55.0
7. PAINTED GRID 53.8
8. MULTIPLICATION 47.5
9. CROSSING POINTS 46.9
10. DISTINCT DIGITS 42.5
[ All Puzzles ]
Comments Add a Comment
   [ODD-EVEN] Clarification

Is the game competitive or cooperative? When my friend plays perfectly, is he/she trying to maximize their own score or maximize my outcome in this puzzle? Thank you.

cmbecker - October 18, 2017 - 11:51
   [CROSSING POINTS] SECOND CHANGE

Dear PuzzleUp Contenders,

To clarify the meaning, the question text has been changed.

Old: "... connect every pair with a curve..."

New: "... connect every point to the other six points with a curve..."

Please take notice and submit your answers accordingly.

Regards,
The PuzzleUp Team

PUZZLEUP - October 05, 2017 - 07:12
   [CROSSING POINTS] Change

Dear PuzzleUp Contenders,

To clarify the meaning, the question text has been changed.

Old: "... seven points on a paper such that no three is collinear..."

New: "... seven points on a plane such that no three are collinear..."

Please take notice and submit your answers accordingly.

Regards,
The PuzzleUp Team

PUZZLEUP - October 04, 2017 - 19:30
   [CLOCKS] SECOND CHANGE

Dear PuzzleUp Contenders,

To clarify the meaning, the question text has been changed.

Old: "...What is the time when this first happens?"

New: "...What is the time when this first happens after they are set?"

Please take notice and submit your answers accordingly.

Regards,
The PuzzleUp Team

PUZZLEUP - September 07, 2017 - 10:27
   [CLOCKS] Clarification

Hi Puzzleup folks,
The conditions are met immediately when you start observing, at 12:00. You may wish to eliminate this answer by stating that the clocks begin their motion and THEN you start observing.
Nice problem...Thanks!

Clive Dawson

clivedaw - September 07, 2017 - 02:29
   [CLOCKS] Change

Dear PuzzleUp Contenders,

To clarify the meaning, the question text has been changed.

Old: "...Enter your answer in 12-hour format, like 01:23"

New: "...Enter your answer in 12-hour format without seconds, like 01:23"

Please take notice and submit your answers accordingly.

Regards,
The PuzzleUp Team

PUZZLEUP - September 06, 2017 - 21:13
   [DOUBLY SORTED NUMBERS] Change

Dear PuzzleUp Contenders,

To clarify the meaning, the question text has been changed.

Old: "...different numbers..."

New: "...different positive integers..."

Please take notice and submit your answers accordingly.

Regards,
The PuzzleUp Team

PUZZLEUP - August 30, 2017 - 16:40
   [LOTTERY] good one

If you think it is easy , the chances are you got it wrong:)

Moeinganji - August 10, 2017 - 22:11
   good start

I enjoyed solving lottery question even it did not take much thinking, I believe this is just the beginning, I am sure that better ones will come soon!

orayg - August 10, 2017 - 11:36
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