Talk:Clock (card game)

how many player have to play and the most ??

Good Telling Time Tool for Children?
Would anybody reccomend this game to help children learn to tell time by the standard analog clock? Phil.andy.graves 21:30, 30 July 2006 (UTC)

The statement in the article that the odds of success are one in 13 is incorrect. This is because if any of bottom face down cards is positioned at its actual clock number, it is impossible to overturn that card. For example, if there is a 9 at the bottom of the pile at the 9 o'clock position, once you have upturned three of the 9s there is no possibility of returning to the 9 o'clock position to upturn the fourth (and it is different for the kings in the centre because that is where you start). The probability of each clock position being a different number is 12/13, so assuming independence (which is almost true) the chance of all 12 being different is 12/13 to the power 12, which is about 0.38. So the probability is no more than 1/13 x 0.38 which is more like one in 34.

Chickez (talk) 15:21, 6 August 2014 (UTC)

No, the extact probality is (51!/4)/52!=1/208. — Preceding unsigned comment added by 109.243.207.97 (talk) 16:38, 27 October 2014 (UTC)