tag:blogger.com,1999:blog-8677649049588007585.post7395358162567923027..comments2015-01-23T13:36:44.783+00:00Comments on PL/SQL Challenge: Another weekly quiz: Logic PuzzlerSteven Feuersteinhttp://www.blogger.com/profile/16619706770920320550noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-8677649049588007585.post-32573389971012504462011-07-05T19:05:19.844+01:002011-07-05T19:05:19.844+01:00I just tried this week's quiz, clicked on Mast...I just tried this week's quiz, clicked on Mastermind and the page came up. Please describe (actually, send me an email: steven@stevenfeuerstein.com) specifically which link you are clicking on, perhaps a screenshot and I will hopefully narrow this down.Steven Feuersteinhttp://www.blogger.com/profile/16619706770920320550noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-33601871001500616362011-07-05T18:37:17.238+01:002011-07-05T18:37:17.238+01:00Nope, still not fixed. Still the same issue.Nope, still not fixed. Still the same issue.bernyhttp://www.blogger.com/profile/13448467708208905266noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-34056048098225052462011-07-05T12:10:38.823+01:002011-07-05T12:10:38.823+01:00Thanks, fixed.Thanks, fixed.Steven Feuersteinhttp://www.blogger.com/profile/16619706770920320550noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-37867011868162858182011-07-05T11:46:40.173+01:002011-07-05T11:46:40.173+01:00The link to the Mastermind Wikipedia page is wrong...The link to the Mastermind Wikipedia page is wrong.<br />It goes to: <br />http://en.wikipedia.org/wiki/Mastermind_board_game<br />but instead should go to:<br />http://en.wikipedia.org/wiki/Mastermind_%28board_game%29bernyhttp://www.blogger.com/profile/13448467708208905266noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-37208639930144437682011-06-24T22:43:05.109+01:002011-06-24T22:43:05.109+01:00Good point, Iudith. In the assumptions for the qui...Good point, Iudith. In the assumptions for the quiz, you will see that I explicitly rule out duplicates and blanks in the solution.<br /><br />Allowing those, along with using more digits, will indeed make the puzzle that much more difficult - and then it will take more of your time and I fear fewer people will play.<br /><br />This configuration should be sufficient to exercise our logic skills, without being all-consuming.<br /><br />Have a great weekend!Steven Feuersteinhttp://www.blogger.com/profile/16619706770920320550noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-51915363142036345582011-06-24T22:36:28.424+01:002011-06-24T22:36:28.424+01:00Hello Steven, All,
The deductions presented are v...Hello Steven, All,<br /><br />The deductions presented are valid because of the following:<br /><br />Since 1234 contains only 2 digits of the solution, it follows that the other 2 must be among 5,6,7.<br />Similarly, since 1367 contains only 1 digit of the solution, it means that 6 and 7 cannot be both in the solution, so automatically 5 should be in the solution, together with one only of 6 or 7.<br />Also, from the same 1367 clue it follows that 1 as well as 3 cannot be in the solution.<br />Now back to the 1234 clue, it follows also that 2 and 4 are in the solution.<br /><br />In summary, the digits of the solution are:<br />2, 4, 5 and one of 6 or 7.<br /><br />Hope that my rationale is right.<br /><br />Some thoughts:<br />I suppose that the valid deductions presented were based on the assumption that the 4 digits of the solution should be distinct.<br />It looks like the original game also allows for duplicates, which makes things more difficult.<br />Also, what about allowing all the digits from 1 to 9, not just 1 to 7 ?<br /><br />Programmers probably always tend to over-complicate life, looks to be our "mode of being" :) :)<br /><br />Thanks a lot & Hope to have fun with this new quiz !<br /><br />Best Regards,<br />Iudithiudithhttp://www.blogger.com/profile/04905902445036068357noreply@blogger.comtag:blogger.com,1999:blog-8677649049588007585.post-35464351791264657052011-06-24T22:35:41.172+01:002011-06-24T22:35:41.172+01:00The clues for guess 1 tells us that two digits are...The clues for guess 1 tells us that two digits are in the solution, for the other two digits are 3 possiblities:<br />(5,6), (5,7), (6,7). Because we have only 1 clue in second guess (6,7) is not correct so we can say:<br /><br />1- 5 must be in the solution.<br />2- Either 6 or 7 must be in the solution, but not both.<br />3- 1 can not be in the solution otherwise we must have 2 clues in the second guess.<br /><br />Best regards,<br /><br />Hamid TalebianAnonymousnoreply@blogger.com