Hello Vasilis,

OK I have been giving the whole picture game some thought.

There are a number of possible variables that would define a number of different games all on the same basic principle, these would be

- How many squares will cover a picture?
- If you answer a question incorrectly can you attempt to reveal the square again and if so do you answer the same question again or a different question?
- Will there be a question for the large picture that is being revealed by the correct answering of square questions?
- If you answer the large picture question wrong can you have another try?

There is also the issue of whether the scoring system should in some way take in to account incorrect answers, so that particularly in games where many attempts can be made to reveal a square that someone who gets the correct answer the first time receives a higher score than someone who takes several attempts before they are successful in revealing the square.

What then is needed is a scoring system that will return a percentage figure that can accomodate all these variations.

I have modelled this on a spread sheet and it seems to me to give acceptable results, so can I suggest the following two formulas for scoring, which I believe could be applied to all variants of the game.

Definitions:

**Number of attempts** = count of all questions attempted whether answered incorrectly or correctly to include both questions asked to reveal squares and questions asked to identify the big picture.

**Number of correct answers** = count of all correct answers given to questions asked to reveal squares and correct answers given to question asked to reveal the big picture.

**Remaining squares** = The count of squares that have not been revealed at this point in the game.

If there is a Big picture question **and it has been guessed correctly** the score is given by

(number of correct answers + remaining squares not exposed) / (Number of attempts + remaining squares to be exposed)

If there is no big picture question or there is a big picture question but it has not yet been answered correctly then the score is given by

(number of correct answers) / (Number of attempts + remaining squares to be exposed)

See what you think.

Kind regards

Johnathan