Advanced solving techniques
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- almost-locked sets: extension to XY-cycles/3D Medusa
by Bob Hanson » Wed Dec 07, 2005 5:48 pm - 0 Replies
- 1323 Views
- Last post by Bob Hanson
Wed Dec 07, 2005 5:48 pm
- almost-locked sets: extension to XY-cycles/3D Medusa
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- almost-locked sets: extension to X-cycles/coloring
by Bob Hanson » Wed Dec 07, 2005 4:47 pm - 0 Replies
- 1521 Views
- Last post by Bob Hanson
Wed Dec 07, 2005 4:47 pm
- almost-locked sets: extension to X-cycles/coloring
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- I need a little logic help
by bruceka9 » Tue Dec 06, 2005 11:00 pm - 3 Replies
- 1994 Views
- Last post by bruceka9
Wed Dec 07, 2005 1:45 pm
- I need a little logic help
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- Solution Terminology
by buchman » Mon Dec 05, 2005 3:47 pm - 3 Replies
- 2208 Views
- Last post by Cec
Tue Dec 06, 2005 3:51 am
- Solution Terminology
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- Stuck! What do I do next with this puzzle?
by carol » Sat Dec 03, 2005 5:36 pm - 12 Replies
- 4522 Views
- Last post by QBasicMac
Tue Dec 06, 2005 3:34 am
- Stuck! What do I do next with this puzzle?
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- forcing chains
by michgirl » Tue Dec 06, 2005 3:04 am - 1 Replies
- 2087 Views
- Last post by Jeff
Tue Dec 06, 2005 3:11 am
- forcing chains
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- How do I solve Very Hard?
by bbriscoe » Mon Dec 05, 2005 5:55 pm - 4 Replies
- 3085 Views
- Last post by Ruud
Mon Dec 05, 2005 11:05 pm
- How do I solve Very Hard?
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- Colouring/Swordfish.
by Del » Sun Dec 04, 2005 3:32 pm - 2 Replies
- 2362 Views
- Last post by Del
Mon Dec 05, 2005 7:20 pm
- Colouring/Swordfish.
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- Strong Nice Loop: a new concept
by Carcul » Fri Dec 02, 2005 12:50 am - 12 Replies
- 10600 Views
- Last post by ronk
Mon Dec 05, 2005 12:23 pm
- Strong Nice Loop: a new concept
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- what are "swordfish" and "x-wing"
by bluemoose » Sun Dec 04, 2005 4:12 am - 2 Replies
- 2759 Views
- Last post by ExpertNovice
Mon Dec 05, 2005 3:02 am
- what are "swordfish" and "x-wing"
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- Need someone to solve
by the4cruisers » Sun Dec 04, 2005 2:53 am - 3 Replies
- 2054 Views
- Last post by the4cruisers
Mon Dec 05, 2005 12:23 am
- Need someone to solve
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- a somewhat useful trick
by bluemoose » Sat Dec 03, 2005 3:29 am - 3 Replies
- 2564 Views
- Last post by r.e.s.
Sat Dec 03, 2005 11:15 pm
- a somewhat useful trick
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- trial and error / forcing chains
by vvill » Fri Dec 02, 2005 1:53 am - 5 Replies
- 8174 Views
- Last post by Shazbot
Fri Dec 02, 2005 10:37 pm
- trial and error / forcing chains
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- Help! Stuck at two sudoku!
1, 2by lthjason123 » Sun Nov 27, 2005 2:11 am - 22 Replies
- 8104 Views
- Last post by Cec
Fri Dec 02, 2005 9:12 am
- Help! Stuck at two sudoku!
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- A Simple Direct Proof For Forcing Chains Using Sets
by Myth Jellies » Tue Nov 29, 2005 9:58 am - 3 Replies
- 2795 Views
- Last post by r.e.s.
Fri Dec 02, 2005 4:26 am
- A Simple Direct Proof For Forcing Chains Using Sets
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- help with hard puzzle from papacom
by adrianzr » Thu Dec 01, 2005 2:57 am - 9 Replies
- 3822 Views
- Last post by adrianzr
Fri Dec 02, 2005 2:36 am
- help with hard puzzle from papacom
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- Another Way to Represent Candidates (2)
by Kibitzer » Mon Nov 21, 2005 8:12 pm - 13 Replies
- 7049 Views
- Last post by Kibitzer
Thu Dec 01, 2005 11:43 am
- Another Way to Represent Candidates (2)
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- Not almost locked sets
by bennys » Thu Dec 01, 2005 8:58 am - 0 Replies
- 1611 Views
- Last post by bennys
Thu Dec 01, 2005 8:58 am
- Not almost locked sets
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- to rubylips
by bennys » Tue Nov 29, 2005 6:03 am - 3 Replies
- 2308 Views
- Last post by rubylips
Wed Nov 30, 2005 11:50 am
- to rubylips
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- I got all solutions
by safeheaven » Mon Nov 28, 2005 8:42 am - 3 Replies
- 2900 Views
- Last post by nj3h
Mon Nov 28, 2005 10:32 pm
- I got all solutions
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- Angus advanced
by Wolfgang » Mon Nov 28, 2005 5:36 pm - 2 Replies
- 2466 Views
- Last post by Wolfgang
Mon Nov 28, 2005 8:29 pm
- Angus advanced
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- how to spot this pattern?
1, 2by MikeF » Sat Nov 26, 2005 3:27 am - 22 Replies
- 14208 Views
- Last post by rubylips
Mon Nov 28, 2005 3:59 pm
- how to spot this pattern?
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- Help Snoopy find the solution to this diabolical Puzzle
by Sudoku Snoopy » Mon Nov 28, 2005 12:22 pm - 10 Replies
- 6591 Views
- Last post by Sudoku Snoopy
Mon Nov 28, 2005 3:46 pm
- Help Snoopy find the solution to this diabolical Puzzle
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- Rule of Corners
by bcbhatta » Sat Nov 26, 2005 3:31 pm - 2 Replies
- 5046 Views
- Last post by bcbhatta
Sat Nov 26, 2005 5:59 pm
- Rule of Corners
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- More offbeat fun with uniqueness patterns
by Nick67 » Sat Nov 26, 2005 3:34 am - 7 Replies
- 3866 Views
- Last post by Myth Jellies
Sat Nov 26, 2005 10:57 am
- More offbeat fun with uniqueness patterns
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- Stuck in a "Diabolical" sudoku
1, 2by SuDoKu_StUdeNt » Thu Nov 24, 2005 2:04 pm - 20 Replies
- 13184 Views
- Last post by Jeff
Sat Nov 26, 2005 6:43 am
- Stuck in a "Diabolical" sudoku
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- Stuck completely on a "tough" level
1, 2by Heliob » Sat Nov 05, 2005 5:16 pm - 24 Replies
- 11534 Views
- Last post by masb
Sat Nov 26, 2005 1:46 am
- Stuck completely on a "tough" level
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- can't figure out circular sudoku
by jeannie » Fri Nov 25, 2005 11:21 pm - 2 Replies
- 4984 Views
- Last post by r.e.s.
Sat Nov 26, 2005 12:49 am
- can't figure out circular sudoku
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- Conditional Disjoint Subsets
by rubylips » Thu Nov 24, 2005 10:34 am - 13 Replies
- 10296 Views
- Last post by ronk
Thu Nov 24, 2005 11:38 pm
- Conditional Disjoint Subsets
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- Offbeat fun with a 9-box bivalue uniqueness pattern
by Myth Jellies » Thu Nov 24, 2005 8:20 am - 0 Replies
- 2168 Views
- Last post by Myth Jellies
Thu Nov 24, 2005 8:20 am
- Offbeat fun with a 9-box bivalue uniqueness pattern
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- A beautiful n-digits/n-cells uniqueness example
by Myth Jellies » Wed Nov 23, 2005 1:23 am - 14 Replies
- 12544 Views
- Last post by Nick67
Thu Nov 24, 2005 5:39 am
- A beautiful n-digits/n-cells uniqueness example
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- more guessing
by cphuntington97 » Wed Nov 23, 2005 12:01 am - 6 Replies
- 4092 Views
- Last post by emm
Wed Nov 23, 2005 8:54 pm
- more guessing
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- Another kind of argument?
by bennys » Tue Nov 22, 2005 10:06 am - 9 Replies
- 4002 Views
- Last post by Jeff
Wed Nov 23, 2005 2:26 pm
- Another kind of argument?
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- Also stuck
1, 2by QBasicMac » Fri Nov 18, 2005 8:53 pm - 22 Replies
- 8211 Views
- Last post by MCC
Wed Nov 23, 2005 1:16 pm
- Also stuck
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- i'm stuck too
by simleung » Sun Nov 20, 2005 6:33 am - 10 Replies
- 4029 Views
- Last post by Shazbot
Wed Nov 23, 2005 7:04 am
- i'm stuck too
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- Nice X-Y Wing puzzle
by Hud » Tue Nov 22, 2005 11:52 pm - 2 Replies
- 2074 Views
- Last post by Hud
Wed Nov 23, 2005 5:38 am
- Nice X-Y Wing puzzle
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- Wondering if there is a solving technique for this?
by arsoncupid » Tue Nov 22, 2005 8:30 pm - 6 Replies
- 3971 Views
- Last post by arsoncupid
Wed Nov 23, 2005 3:40 am
- Wondering if there is a solving technique for this?
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- Is the 4 cell non-repetitive path common?
by tso » Mon Nov 21, 2005 8:00 pm - 8 Replies
- 3479 Views
- Last post by Jeff
Wed Nov 23, 2005 2:56 am
- Is the 4 cell non-repetitive path common?
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