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#837, July 5 - July 11:
The Weekly Extreme Str8ts Puzzle

by Andrew Stuart
WARNING: This is the Weekly 'Extreme' Str8ts.
Only attempt this puzzle if you have time and patience.
Using the solver will not help you. (much).
Oct 18th 2024
The solver can now handle Str8ts variants. Yay! The solver button on the player will now pass an appropriate parameter.
Archive
Since there has been interesting strategy discussion on these puzzles and by popular request, I have opened an archive on the last thirty weeks. The discussion section is open for continued posting.
All Access Supporters can load all puzzles from number 1.
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Discussion...
Posts you have NOT read are in normal colors, older ones are in grey.
Please email me if you experience problems or bugs. Cheers, Andrew Stuart


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No full solutions please!

by: hepa

 5-Jul-2026, 11:32
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1
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4
 

by: kris

 6-Jul-2026, 18:20
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A really tough puzzle! With 12 cells solved, I needed a quite long chain to determine whether 6 appears in row E and column 9. After that, it can be solved using standard techniques.
Since it's so quiet here, I assume there really is no chain-free solution :)
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by: acs
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3
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5
 The Weekly Str8ts puzzle #837
 

by: Klaus

 5-Jul-2026, 06:49
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4
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6
 
E1=2 is wonderful
 

by: hp

 5-Jul-2026, 10:23
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1
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2
Very nice pattern and hint
After that Setti 1 enough
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by: acs
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1
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2
 The Weekly Str8ts X puzzle #229
 

by: jgrab

 5-Jul-2026, 13:01
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1
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 Hard work. When started with the correct A1B2 assumption, the rest follows. But I didn't disprove the other option.
 

by: aw

 6-Jul-2026, 10:30
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 Funny - sometime I already had the result for A1B2 hi/lo after several chainbased decisions (J1-G6, 9ABC ...), but I found the remaining work even harder
 

by: aw

 6-Jul-2026, 10:32
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... J1-G3, of course
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by: acs
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3
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2
 The Weekly Str8ts B puzzle #229
 

by: jgrab

 6-Jul-2026, 00:55
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 16 min; nice and easy.
 

by: Nonna

6-Jul-2026, 09:00
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 Very joyful Puzzle for a grandma
 

by: optimator

 6-Jul-2026, 09:48
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 5'
 

by: Hel

 6-Jul-2026, 09:59
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 23' WC
 

by: EC

 6-Jul-2026, 18:54
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pure logic
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by: acs
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5
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3
 The Weekly Str8ts BX puzzle #229
 

by: optimator

 5-Jul-2026, 08:47
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1
 I needed 2 tries
 

by: WolfgangL

 5-Jul-2026, 12:20
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 Develops very nicely, small chain towards the end, thanks!
 

by: jgrab

 5-Jul-2026, 13:57
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 Nice and smooth towards the end.
 

by: kmr

 5-Jul-2026, 18:45
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 Like WolfgangL. Very nice one, thanks!
 

by: Cosmanita

5-Jul-2026, 21:34
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1
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 I enjoyed it a lot.

I would rather call it a short interaction than a chain, H5=1 does not work in J35,H3.
 

by: EC

 6-Jul-2026, 18:47
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needed two chains
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Page created on 27-June-2010.
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Copyright Jeff Widderich and Andrew Stuart @ Syndicated Puzzles, Privacy, 2007-2024
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  • 1:22:37, nach 2. Versuch und einer glücklichen Entscheidung. Verdammt schwer!!!
    - zoo-pony (Tartlau)
  • like dersoloist
    - optimator
  • hab lange probiert, brauchte dann doch den klaus
    - dersoloist
  • 29 min thanks to the hint
    - 7Iron
  • Lange mit chains probiert, aber mit nachlassender Konzentration doch gescheitert. Dann doch Hint von Klaus benutzt. Danke
    - b*k*
  • Danke für Hint von Klaus. Wie kommt man auf diesen schönen Trick?
    - S. Walt
  • Messed it up once, restarted with Klaus' hint, 20 min from there.
    - ataraxia
  • ab. 1h, thnx to Klaus!
    - UZ
  • 22 min, mit Tipp von Klaus
    - humpti dumpti
  • 1.02
    - kid
  • Managed only with Klaus magic hint, but it's done.
    - notsonewbie
  • 25 min - Danke an Klaus und hp
    - Rot
  • 14 min, with Klaus' hint
    - Beate
  • thanx klaus
    - chris1
  • 25 min but only with hint
    - Emma
  • 46' finally took hint
    - Maven
  • 26 min with Klaus' hint
    - Alex
  • Done with Klaus' hint.
    - jgrab
  • 51 min - easy with Klaus' hint; without the hint for me impossible
    - Michael
  • WOW I did it. First CE Col 3, then CE Col 1. Rest fell in place Klaus' hint (for me) not necessary Good Luck tonight with CE in Azteca!
    - Petela
  • 40' - got stuck, then Klaus hint unravelled it nicely
    - COM
  • Nice with Klaus' hint.
    - MrL
  • 32‘
    - A. Friend
  • 1 h, with Klaus´ hint not so hard, thx to him; no solver.
    - H.E.
  • With Klaus hint easy, Elimination, x-wing
    - bhk
  • Too hard to solve without hint - thx Klaus
    - Susi
  • 18' WC (with Klaus' hint)
    - Hel
  • 17' with Klaus' powerful hint.
    - A B Traherne
  • 20 mins, thanks to Klaus.
    - Miss P
  • 23’ with Klaus’ hint easy but very nice
    - Richard
  • 30' with Klaus' hint
    - ThomasF
  • Filling cells, using the hint, then careful elimination using settis.
    - Solver_4
  • 1.08 h only with Klaus. Thanks
    - Cleo