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The failing LEDs (Posted on 2005-08-09) Difficulty: 3 of 5
The numbers from 0-9 are here represented as they appear in digital clocks:
     
    __         __     __            __     __   __     __    __ 
   |  |   |    __|    __|   |__|   |__    |__     |   |__|  |__| 
   |__|   |   |__     __|      |    __|   |__|    |   |__|   __|
An example of a multiplication (a 2-digit number by an 1-digit number) unidentified because some "LEDs" failed and are "off" (they had to be "on") is shown at left, and the correct one is shown at right (the alignment is perfect):
                                            __     __
                     |                      __|   |__|
           |                               |__    |__|
                                                   __
                                                  |__| 
            x     |                         x     |__|
   -------------------              ------------------
            __                       __     __    
       |    __       |               __|    __|   |__|   
    |      |         |              |__    |__       |
Can you "turn on" the failing "LEDs" in the 3-digit by 3-digit multiplication below?
                                          __     __
                                  |                |
                                  |      |     
                            x      __            
                                     |    __      
                                            |   |__
                            ------------------------
                                                 
                                  |  |      |   
                            __|             |   |  | 
                            __            
                       |   |         |    __|
                    |              __    
                                   
                |      |          |
                |    __    |  |    __ 
             ---------------------------------------
                                                 __
                |    __       |    __    |  |   
                |   |         |    __            __

See The Solution Submitted by pcbouhid    
Rating: 4.3333 (6 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Puzzle ThoughtsK Sengupta2023-04-04 11:26:43
Some Thoughtsre: confusedPercy2005-08-19 20:07:47
haha.. soweenickson2005-08-17 09:09:15
re: no answerpcbouhid2005-08-15 13:13:22
no answernickson2005-08-15 07:13:51
re(2): confused - as was I but ....pcbouhid2005-08-10 12:01:06
re: confused - as was I but ....brianjn2005-08-10 04:00:45
re: confusedpcbouhid2005-08-10 02:09:04
confusedMonica2005-08-10 01:56:47
SolutionThe realm of possibilitiesLeming2005-08-09 21:49:53
re: can we assumepcbouhid2005-08-09 20:14:39
Questioncan we assumeCharlie2005-08-09 20:03:41
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