A new 4 x 4 arrow puzzle

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
8
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Can anyone help me with solving this puzzle:



Draw arrows in all fields around the diagram in a way that every arrow is pointing at least one number inside. The numbers inside the boxes equal the number of arrows pointing at them. The arrows can point horizontally, vertically or diagonally.



Here is an example showing how to solve this type of puzzle.



arrows puzzle[1]



This is from a job interview so I have no source.










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  • 4




    What are the rules?
    – Chris Cudmore
    yesterday






  • 5




    Also remember to add sources of puzzles when they are not your own.
    – gabbo1092
    yesterday






  • 1




    Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
    – gabbo1092
    yesterday










  • Arrows can go in angles @gabbo1092
    – Parseltongue
    yesterday










  • Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
    – Jannis
    yesterday














up vote
8
down vote

favorite












Can anyone help me with solving this puzzle:



Draw arrows in all fields around the diagram in a way that every arrow is pointing at least one number inside. The numbers inside the boxes equal the number of arrows pointing at them. The arrows can point horizontally, vertically or diagonally.



Here is an example showing how to solve this type of puzzle.



arrows puzzle[1]



This is from a job interview so I have no source.










share|improve this question









New contributor




Teditedutu is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.















  • 4




    What are the rules?
    – Chris Cudmore
    yesterday






  • 5




    Also remember to add sources of puzzles when they are not your own.
    – gabbo1092
    yesterday






  • 1




    Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
    – gabbo1092
    yesterday










  • Arrows can go in angles @gabbo1092
    – Parseltongue
    yesterday










  • Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
    – Jannis
    yesterday












up vote
8
down vote

favorite









up vote
8
down vote

favorite











Can anyone help me with solving this puzzle:



Draw arrows in all fields around the diagram in a way that every arrow is pointing at least one number inside. The numbers inside the boxes equal the number of arrows pointing at them. The arrows can point horizontally, vertically or diagonally.



Here is an example showing how to solve this type of puzzle.



arrows puzzle[1]



This is from a job interview so I have no source.










share|improve this question









New contributor




Teditedutu is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











Can anyone help me with solving this puzzle:



Draw arrows in all fields around the diagram in a way that every arrow is pointing at least one number inside. The numbers inside the boxes equal the number of arrows pointing at them. The arrows can point horizontally, vertically or diagonally.



Here is an example showing how to solve this type of puzzle.



arrows puzzle[1]



This is from a job interview so I have no source.







logical-deduction grid-deduction






share|improve this question









New contributor




Teditedutu is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









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Check out our Code of Conduct.









share|improve this question




share|improve this question








edited yesterday









JonMark Perry

15.7k52975




15.7k52975






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asked yesterday









Teditedutu

461




461




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  • 4




    What are the rules?
    – Chris Cudmore
    yesterday






  • 5




    Also remember to add sources of puzzles when they are not your own.
    – gabbo1092
    yesterday






  • 1




    Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
    – gabbo1092
    yesterday










  • Arrows can go in angles @gabbo1092
    – Parseltongue
    yesterday










  • Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
    – Jannis
    yesterday












  • 4




    What are the rules?
    – Chris Cudmore
    yesterday






  • 5




    Also remember to add sources of puzzles when they are not your own.
    – gabbo1092
    yesterday






  • 1




    Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
    – gabbo1092
    yesterday










  • Arrows can go in angles @gabbo1092
    – Parseltongue
    yesterday










  • Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
    – Jannis
    yesterday







4




4




What are the rules?
– Chris Cudmore
yesterday




What are the rules?
– Chris Cudmore
yesterday




5




5




Also remember to add sources of puzzles when they are not your own.
– gabbo1092
yesterday




Also remember to add sources of puzzles when they are not your own.
– gabbo1092
yesterday




1




1




Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
– gabbo1092
yesterday




Do you know if the arrows can go at angles? Otherwise I don't see how 5's are possible
– gabbo1092
yesterday












Arrows can go in angles @gabbo1092
– Parseltongue
yesterday




Arrows can go in angles @gabbo1092
– Parseltongue
yesterday












Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
– Jannis
yesterday




Why is this logical-deduction tagged? Is it really pure logical makeable or do you have to guess at the start?
– Jannis
yesterday










4 Answers
4






active

oldest

votes

















up vote
5
down vote













I think this is the answer desired:




Arrow Grid




I started by




Assuming at least one arrows each in an inverted A shape, based on the prevalence of 5s and 4s, in columns 1 and 4, and rows 2 and 4. After that, it was primarily guesswork, placing lines, then working backwards to determine what arrows would cause those lines.







share|improve this answer




















  • This is indeed the correct answer. bravo!
    – ABcDexter
    yesterday

















up vote
5
down vote













The first clue I spotted was:




The second column has exactly one vertical arrow.




This can be proven as:




It can't have two vertical arrows because of the 1 in it. If it has zero vertical arrows, then the 4 at (2,2) is forced, and then the 4 at (2,4) is forced. But then the 4 at (4,4) can't be achieved, because of it's six arrow squares, three have already been used: (4,0), (0,4) and (3,5).




Secondly you can spot that:




As the 1 in the second column is already covered, the arrows on row 1 must point diagonally downwards.







share|improve this answer



























    up vote
    0
    down vote













    This solution:




    1. places an arrow in every field around the diagram;

    2. each arrow points at one or more numbers inside;

    3. satisfies the condition of having the numbers in the boxes equaling the numbers of arrows pointing at them!



    That being said, the person who is giving you the interview may not like it.




    enter image description here




    :P






    share|improve this answer






















    • These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
      – Parseltongue
      yesterday











    • I too thought about odd angles for arrows, but you sir are taking it to another level x)
      – Cashbee
      yesterday










    • Bottom left corner?
      – Greg
      yesterday










    • @Greg all of the outer squares it touches have an arrow pointing at it
      – Excited Raichu
      yesterday










    • Wow, that is next level!
      – Greg
      yesterday

















    up vote
    0
    down vote













    This is a possibility:




    https://i.stack.imgur.com/deYyd.jpg




    I‘m sure there are others.






    share|improve this answer








    New contributor




    Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.

















      Your Answer





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      4 Answers
      4






      active

      oldest

      votes








      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      5
      down vote













      I think this is the answer desired:




      Arrow Grid




      I started by




      Assuming at least one arrows each in an inverted A shape, based on the prevalence of 5s and 4s, in columns 1 and 4, and rows 2 and 4. After that, it was primarily guesswork, placing lines, then working backwards to determine what arrows would cause those lines.







      share|improve this answer




















      • This is indeed the correct answer. bravo!
        – ABcDexter
        yesterday














      up vote
      5
      down vote













      I think this is the answer desired:




      Arrow Grid




      I started by




      Assuming at least one arrows each in an inverted A shape, based on the prevalence of 5s and 4s, in columns 1 and 4, and rows 2 and 4. After that, it was primarily guesswork, placing lines, then working backwards to determine what arrows would cause those lines.







      share|improve this answer




















      • This is indeed the correct answer. bravo!
        – ABcDexter
        yesterday












      up vote
      5
      down vote










      up vote
      5
      down vote









      I think this is the answer desired:




      Arrow Grid




      I started by




      Assuming at least one arrows each in an inverted A shape, based on the prevalence of 5s and 4s, in columns 1 and 4, and rows 2 and 4. After that, it was primarily guesswork, placing lines, then working backwards to determine what arrows would cause those lines.







      share|improve this answer












      I think this is the answer desired:




      Arrow Grid




      I started by




      Assuming at least one arrows each in an inverted A shape, based on the prevalence of 5s and 4s, in columns 1 and 4, and rows 2 and 4. After that, it was primarily guesswork, placing lines, then working backwards to determine what arrows would cause those lines.








      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered yesterday









      Sconibulus

      14.3k127100




      14.3k127100











      • This is indeed the correct answer. bravo!
        – ABcDexter
        yesterday
















      • This is indeed the correct answer. bravo!
        – ABcDexter
        yesterday















      This is indeed the correct answer. bravo!
      – ABcDexter
      yesterday




      This is indeed the correct answer. bravo!
      – ABcDexter
      yesterday










      up vote
      5
      down vote













      The first clue I spotted was:




      The second column has exactly one vertical arrow.




      This can be proven as:




      It can't have two vertical arrows because of the 1 in it. If it has zero vertical arrows, then the 4 at (2,2) is forced, and then the 4 at (2,4) is forced. But then the 4 at (4,4) can't be achieved, because of it's six arrow squares, three have already been used: (4,0), (0,4) and (3,5).




      Secondly you can spot that:




      As the 1 in the second column is already covered, the arrows on row 1 must point diagonally downwards.







      share|improve this answer
























        up vote
        5
        down vote













        The first clue I spotted was:




        The second column has exactly one vertical arrow.




        This can be proven as:




        It can't have two vertical arrows because of the 1 in it. If it has zero vertical arrows, then the 4 at (2,2) is forced, and then the 4 at (2,4) is forced. But then the 4 at (4,4) can't be achieved, because of it's six arrow squares, three have already been used: (4,0), (0,4) and (3,5).




        Secondly you can spot that:




        As the 1 in the second column is already covered, the arrows on row 1 must point diagonally downwards.







        share|improve this answer






















          up vote
          5
          down vote










          up vote
          5
          down vote









          The first clue I spotted was:




          The second column has exactly one vertical arrow.




          This can be proven as:




          It can't have two vertical arrows because of the 1 in it. If it has zero vertical arrows, then the 4 at (2,2) is forced, and then the 4 at (2,4) is forced. But then the 4 at (4,4) can't be achieved, because of it's six arrow squares, three have already been used: (4,0), (0,4) and (3,5).




          Secondly you can spot that:




          As the 1 in the second column is already covered, the arrows on row 1 must point diagonally downwards.







          share|improve this answer












          The first clue I spotted was:




          The second column has exactly one vertical arrow.




          This can be proven as:




          It can't have two vertical arrows because of the 1 in it. If it has zero vertical arrows, then the 4 at (2,2) is forced, and then the 4 at (2,4) is forced. But then the 4 at (4,4) can't be achieved, because of it's six arrow squares, three have already been used: (4,0), (0,4) and (3,5).




          Secondly you can spot that:




          As the 1 in the second column is already covered, the arrows on row 1 must point diagonally downwards.








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered yesterday









          JonMark Perry

          15.7k52975




          15.7k52975




















              up vote
              0
              down vote













              This solution:




              1. places an arrow in every field around the diagram;

              2. each arrow points at one or more numbers inside;

              3. satisfies the condition of having the numbers in the boxes equaling the numbers of arrows pointing at them!



              That being said, the person who is giving you the interview may not like it.




              enter image description here




              :P






              share|improve this answer






















              • These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
                – Parseltongue
                yesterday











              • I too thought about odd angles for arrows, but you sir are taking it to another level x)
                – Cashbee
                yesterday










              • Bottom left corner?
                – Greg
                yesterday










              • @Greg all of the outer squares it touches have an arrow pointing at it
                – Excited Raichu
                yesterday










              • Wow, that is next level!
                – Greg
                yesterday














              up vote
              0
              down vote













              This solution:




              1. places an arrow in every field around the diagram;

              2. each arrow points at one or more numbers inside;

              3. satisfies the condition of having the numbers in the boxes equaling the numbers of arrows pointing at them!



              That being said, the person who is giving you the interview may not like it.




              enter image description here




              :P






              share|improve this answer






















              • These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
                – Parseltongue
                yesterday











              • I too thought about odd angles for arrows, but you sir are taking it to another level x)
                – Cashbee
                yesterday










              • Bottom left corner?
                – Greg
                yesterday










              • @Greg all of the outer squares it touches have an arrow pointing at it
                – Excited Raichu
                yesterday










              • Wow, that is next level!
                – Greg
                yesterday












              up vote
              0
              down vote










              up vote
              0
              down vote









              This solution:




              1. places an arrow in every field around the diagram;

              2. each arrow points at one or more numbers inside;

              3. satisfies the condition of having the numbers in the boxes equaling the numbers of arrows pointing at them!



              That being said, the person who is giving you the interview may not like it.




              enter image description here




              :P






              share|improve this answer














              This solution:




              1. places an arrow in every field around the diagram;

              2. each arrow points at one or more numbers inside;

              3. satisfies the condition of having the numbers in the boxes equaling the numbers of arrows pointing at them!



              That being said, the person who is giving you the interview may not like it.




              enter image description here




              :P







              share|improve this answer














              share|improve this answer



              share|improve this answer








              edited yesterday

























              answered yesterday









              Excited Raichu

              3,760645




              3,760645











              • These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
                – Parseltongue
                yesterday











              • I too thought about odd angles for arrows, but you sir are taking it to another level x)
                – Cashbee
                yesterday










              • Bottom left corner?
                – Greg
                yesterday










              • @Greg all of the outer squares it touches have an arrow pointing at it
                – Excited Raichu
                yesterday










              • Wow, that is next level!
                – Greg
                yesterday
















              • These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
                – Parseltongue
                yesterday











              • I too thought about odd angles for arrows, but you sir are taking it to another level x)
                – Cashbee
                yesterday










              • Bottom left corner?
                – Greg
                yesterday










              • @Greg all of the outer squares it touches have an arrow pointing at it
                – Excited Raichu
                yesterday










              • Wow, that is next level!
                – Greg
                yesterday















              These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
              – Parseltongue
              yesterday





              These are a standard puzzle form: puzzlepicnic.com/puzzles... but something about this puzzle makes me believe it's unsolvable. I wonder if it's just one of those task-persistence measures given in job interviews to see how long you'll try before you give up. Or, if it is solvable, it doesn't have characteristics of other arrow puzzles, which generally have one square with only one logical set of arrows possible.
              – Parseltongue
              yesterday













              I too thought about odd angles for arrows, but you sir are taking it to another level x)
              – Cashbee
              yesterday




              I too thought about odd angles for arrows, but you sir are taking it to another level x)
              – Cashbee
              yesterday












              Bottom left corner?
              – Greg
              yesterday




              Bottom left corner?
              – Greg
              yesterday












              @Greg all of the outer squares it touches have an arrow pointing at it
              – Excited Raichu
              yesterday




              @Greg all of the outer squares it touches have an arrow pointing at it
              – Excited Raichu
              yesterday












              Wow, that is next level!
              – Greg
              yesterday




              Wow, that is next level!
              – Greg
              yesterday










              up vote
              0
              down vote













              This is a possibility:




              https://i.stack.imgur.com/deYyd.jpg




              I‘m sure there are others.






              share|improve this answer








              New contributor




              Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.





















                up vote
                0
                down vote













                This is a possibility:




                https://i.stack.imgur.com/deYyd.jpg




                I‘m sure there are others.






                share|improve this answer








                New contributor




                Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.



















                  up vote
                  0
                  down vote










                  up vote
                  0
                  down vote









                  This is a possibility:




                  https://i.stack.imgur.com/deYyd.jpg




                  I‘m sure there are others.






                  share|improve this answer








                  New contributor




                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                  Check out our Code of Conduct.









                  This is a possibility:




                  https://i.stack.imgur.com/deYyd.jpg




                  I‘m sure there are others.







                  share|improve this answer








                  New contributor




                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                  Check out our Code of Conduct.









                  share|improve this answer



                  share|improve this answer






                  New contributor




                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                  Check out our Code of Conduct.









                  answered 18 hours ago









                  Anon

                  1




                  1




                  New contributor




                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                  New contributor





                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                  Check out our Code of Conduct.






                  Anon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                  Check out our Code of Conduct.




















                      Teditedutu is a new contributor. Be nice, and check out our Code of Conduct.









                       

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