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A bicolour masyu


A Total Masyu puzzleThe Ludicrous Loop: over a thousand cells of circular logic!A problem about Yin-Yang puzzlesMasyu jigsaw puzzleStatue Park (Loop)Masyu puzzles with many circles3D nonogram – What's going on?3D nonogram – What's in the box?I'm Bad at Naming Things, so Just Try to Solve this Patterned Masyu Puzzle!Masyu-making game






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








10












$begingroup$



This is a bicolour masyu puzzle. Instead of making one continuous loop, the goal is to make two separate loops, one blue and one red. The coloured circles must be used for the loop of the same colour, whereas black circles can be used for either colour.



enter image description here











share|improve this question









$endgroup$







  • 1




    $begingroup$
    will the two loops intersect?
    $endgroup$
    – Omega Krypton
    10 hours ago










  • $begingroup$
    Covering all cells is not required in masyu. The two loops can't cross each other.
    $endgroup$
    – jafe
    10 hours ago










  • $begingroup$
    I'm glad you made that clear, I misread the linked rules
    $endgroup$
    – micsthepick
    10 hours ago

















10












$begingroup$



This is a bicolour masyu puzzle. Instead of making one continuous loop, the goal is to make two separate loops, one blue and one red. The coloured circles must be used for the loop of the same colour, whereas black circles can be used for either colour.



enter image description here











share|improve this question









$endgroup$







  • 1




    $begingroup$
    will the two loops intersect?
    $endgroup$
    – Omega Krypton
    10 hours ago










  • $begingroup$
    Covering all cells is not required in masyu. The two loops can't cross each other.
    $endgroup$
    – jafe
    10 hours ago










  • $begingroup$
    I'm glad you made that clear, I misread the linked rules
    $endgroup$
    – micsthepick
    10 hours ago













10












10








10


1



$begingroup$



This is a bicolour masyu puzzle. Instead of making one continuous loop, the goal is to make two separate loops, one blue and one red. The coloured circles must be used for the loop of the same colour, whereas black circles can be used for either colour.



enter image description here











share|improve this question









$endgroup$





This is a bicolour masyu puzzle. Instead of making one continuous loop, the goal is to make two separate loops, one blue and one red. The coloured circles must be used for the loop of the same colour, whereas black circles can be used for either colour.



enter image description here








grid-deduction






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 10 hours ago









jafejafe

33.3k5 gold badges91 silver badges336 bronze badges




33.3k5 gold badges91 silver badges336 bronze badges







  • 1




    $begingroup$
    will the two loops intersect?
    $endgroup$
    – Omega Krypton
    10 hours ago










  • $begingroup$
    Covering all cells is not required in masyu. The two loops can't cross each other.
    $endgroup$
    – jafe
    10 hours ago










  • $begingroup$
    I'm glad you made that clear, I misread the linked rules
    $endgroup$
    – micsthepick
    10 hours ago












  • 1




    $begingroup$
    will the two loops intersect?
    $endgroup$
    – Omega Krypton
    10 hours ago










  • $begingroup$
    Covering all cells is not required in masyu. The two loops can't cross each other.
    $endgroup$
    – jafe
    10 hours ago










  • $begingroup$
    I'm glad you made that clear, I misread the linked rules
    $endgroup$
    – micsthepick
    10 hours ago







1




1




$begingroup$
will the two loops intersect?
$endgroup$
– Omega Krypton
10 hours ago




$begingroup$
will the two loops intersect?
$endgroup$
– Omega Krypton
10 hours ago












$begingroup$
Covering all cells is not required in masyu. The two loops can't cross each other.
$endgroup$
– jafe
10 hours ago




$begingroup$
Covering all cells is not required in masyu. The two loops can't cross each other.
$endgroup$
– jafe
10 hours ago












$begingroup$
I'm glad you made that clear, I misread the linked rules
$endgroup$
– micsthepick
10 hours ago




$begingroup$
I'm glad you made that clear, I misread the linked rules
$endgroup$
– micsthepick
10 hours ago










1 Answer
1






active

oldest

votes


















10












$begingroup$

I believe this is the unique solution:




enter image description here




Key steps:




Solid circle near bottom right has to be red because otherwise you can't get the red underneath it out. That rapidly resolves the ambiguous circles over on the right. Then there isn't enough space to connect the blue parts without going around the top left, which tells you which way the "arms" of the solid red circle near the top left go. The rest is straightforward.




My apologies for the inelegance of my diagram; as you may guess, I drew some things in grey before their colours were resolved.






share|improve this answer











$endgroup$












  • $begingroup$
    I'm afraid you are about a minute late
    $endgroup$
    – micsthepick
    9 hours ago










  • $begingroup$
    I don't think so. Your latest solution does something illegal on the left hand edge...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
    $endgroup$
    – pre-kidney
    2 hours ago














Your Answer








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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









10












$begingroup$

I believe this is the unique solution:




enter image description here




Key steps:




Solid circle near bottom right has to be red because otherwise you can't get the red underneath it out. That rapidly resolves the ambiguous circles over on the right. Then there isn't enough space to connect the blue parts without going around the top left, which tells you which way the "arms" of the solid red circle near the top left go. The rest is straightforward.




My apologies for the inelegance of my diagram; as you may guess, I drew some things in grey before their colours were resolved.






share|improve this answer











$endgroup$












  • $begingroup$
    I'm afraid you are about a minute late
    $endgroup$
    – micsthepick
    9 hours ago










  • $begingroup$
    I don't think so. Your latest solution does something illegal on the left hand edge...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
    $endgroup$
    – pre-kidney
    2 hours ago
















10












$begingroup$

I believe this is the unique solution:




enter image description here




Key steps:




Solid circle near bottom right has to be red because otherwise you can't get the red underneath it out. That rapidly resolves the ambiguous circles over on the right. Then there isn't enough space to connect the blue parts without going around the top left, which tells you which way the "arms" of the solid red circle near the top left go. The rest is straightforward.




My apologies for the inelegance of my diagram; as you may guess, I drew some things in grey before their colours were resolved.






share|improve this answer











$endgroup$












  • $begingroup$
    I'm afraid you are about a minute late
    $endgroup$
    – micsthepick
    9 hours ago










  • $begingroup$
    I don't think so. Your latest solution does something illegal on the left hand edge...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
    $endgroup$
    – pre-kidney
    2 hours ago














10












10








10





$begingroup$

I believe this is the unique solution:




enter image description here




Key steps:




Solid circle near bottom right has to be red because otherwise you can't get the red underneath it out. That rapidly resolves the ambiguous circles over on the right. Then there isn't enough space to connect the blue parts without going around the top left, which tells you which way the "arms" of the solid red circle near the top left go. The rest is straightforward.




My apologies for the inelegance of my diagram; as you may guess, I drew some things in grey before their colours were resolved.






share|improve this answer











$endgroup$



I believe this is the unique solution:




enter image description here




Key steps:




Solid circle near bottom right has to be red because otherwise you can't get the red underneath it out. That rapidly resolves the ambiguous circles over on the right. Then there isn't enough space to connect the blue parts without going around the top left, which tells you which way the "arms" of the solid red circle near the top left go. The rest is straightforward.




My apologies for the inelegance of my diagram; as you may guess, I drew some things in grey before their colours were resolved.







share|improve this answer














share|improve this answer



share|improve this answer








edited 9 hours ago

























answered 9 hours ago









Gareth McCaughanGareth McCaughan

77.5k3 gold badges194 silver badges299 bronze badges




77.5k3 gold badges194 silver badges299 bronze badges











  • $begingroup$
    I'm afraid you are about a minute late
    $endgroup$
    – micsthepick
    9 hours ago










  • $begingroup$
    I don't think so. Your latest solution does something illegal on the left hand edge...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
    $endgroup$
    – pre-kidney
    2 hours ago

















  • $begingroup$
    I'm afraid you are about a minute late
    $endgroup$
    – micsthepick
    9 hours ago










  • $begingroup$
    I don't think so. Your latest solution does something illegal on the left hand edge...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
    $endgroup$
    – Gareth McCaughan
    9 hours ago










  • $begingroup$
    I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
    $endgroup$
    – pre-kidney
    2 hours ago
















$begingroup$
I'm afraid you are about a minute late
$endgroup$
– micsthepick
9 hours ago




$begingroup$
I'm afraid you are about a minute late
$endgroup$
– micsthepick
9 hours ago












$begingroup$
I don't think so. Your latest solution does something illegal on the left hand edge...
$endgroup$
– Gareth McCaughan
9 hours ago




$begingroup$
I don't think so. Your latest solution does something illegal on the left hand edge...
$endgroup$
– Gareth McCaughan
9 hours ago












$begingroup$
BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
$endgroup$
– Gareth McCaughan
9 hours ago




$begingroup$
BTW, sorry for the sniping. I started solving before I saw there was someone else attacking it...
$endgroup$
– Gareth McCaughan
9 hours ago












$begingroup$
I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
$endgroup$
– pre-kidney
2 hours ago





$begingroup$
I took a different solve path than @GarethMcCaughan. First, consider the solid circle in row 4 column 7. If it had an arm extending to the right, then a little loop chasing fences the portion of the blue loop near row 6, column 9 in the bottom right corner, forcing it to make contact with the red loop near row 9, column 7. The other key step concerns the configuration of the arms emanating from the solid red circle in row 3, column 3 - only one configuration avoids having the red loop cross the blue loop.
$endgroup$
– pre-kidney
2 hours ago


















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