Re: February puzzel-Red Cross tribute

sneaklyfox wrote:

clm wrote:

Sure a book like that would be very welcome by the "www.calcudoku.org" puzzlers. Additionally I would suggest to assign points (i.e., 25 per puzzle) to create more motivation.

I think 25 point per puzzle would be a bit much although I don't really mind. Maybe 15 points? But yes, assigning points would create more motivation. Most likely I wouldn't do many puzzles that didn't award points unless I were really bored.

But 15 points is even less than the actual 16 points for the 12x12’s. Well, considering the 9x9 puzzle as the “gravity center” of the punctuation, that is, 10 points for filling 81 cells, using the proportionality we would find:

Points = (

**n** ^ 2) x 10 / 81 (being

**n** the size of the puzzle) so

4x4 = 1,98 points (1, 2 and 2 are assigned to the easy, medium or difficult everyday)

5x5 = 3,09 points (2, 3 and 3 or 2, 4 and 4 on wednesdays and thursdays)

6x6 = 4,44 points (3, 4 and 5 or 3, 5 and 7 on sundays and mondays)

7x7 = 6,05 points (5, 9)

8x8 = 7,90 points (7, 8)

9x9 = 10,00 points

10x10 = 12,35 points

12x12 = 17,78 points

**16x16 = 31,60** points

17x17 = 35,68 points

19x19 = 44,57 points

…

Some comments (of course the level of difficulty, etc., is a very subjective question …):

The value of the difficult 8x8’s (these include the “from 0”, “mod” and “bitwise OR”) is 8 points and decreases to 7 points for the mediums (in my opinion, perhaps 9 points for those difficult three is a possibility and 8 points for the other, since 7,90 rounds to 8).

The value of the 9x9’s is always 10 points since there is not a division into easy, medium or difficult (in some way this is compensating the clearly more difficult on tuesdays with the other days of the week) (but, perhaps, 11 points for the one on tuesdays is another possibility keeping 10 points for the other).

14 points are assigned to the 10x10’s (very generous in my opinion, considering the 100 cells and that “proportion” of 12,35 points) (in this case, 13 points for the one on tuesdays, clearly more difficult than the one on fridays, and 12 points for the one on Fridays, is an alternate possibility).

The 12x12 are “undervaluated”, 16 points instead of the expected 18 (rounding that figure of 17,78).

But in the case of the 16x16,

**25 points** is not and excessively generous punctuation since the same proportion gives

**31,60 points**, and that’s why I suggested the same 25 points assigned by Patrick to the Christmas Puzzle, that I considered a good valuation.

Finally, if one day we have a 19x19, we could think in around 45 points.