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#852, October 18 - October 24:
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.
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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: COM

 18-Oct-2026, 11:52
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54' - with several chains and the hint. How to solve it without?
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by: hepa

 18-Oct-2026, 11:24
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2
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by: Nessi

 18-Oct-2026, 08:30
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Try E5=4 and F5=2
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by: acs
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 The Weekly Str8ts X puzzle #244
 

by: jgrab

 18-Oct-2026, 12:57
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 Very elegant solution possible. Note that after CE in the upper rows, E5 cannot be 7 due to Setti 7 problems. The rest follows quite easy.
 

by: schmidl

18-Oct-2026, 13:25
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 What means "CE"?
 

by: Jan

 18-Oct-2026, 13:34
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 complex elimination
Agreed, I also used x-power to decide where the 1 goes i row B
 

by: Pete

 18-Oct-2026, 17:36
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 @schmidl and Jan: As far as I know, (V)CE has always stood for "(very) careful elimination" — that is, elimination within a single row or column — as opposed to more complex techniques like Setti's rule, wings, or chains.
 

by: jgrab

 18-Oct-2026, 17:59
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Indeed, in my opinion "(v)CE" refers to "(very( careful elimination. In this case, there were only two remaining numbers left in AB6 (without application of other rules).
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by: acs
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 The Weekly Str8ts B puzzle #244
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by: acs
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 The Weekly Str8ts puzzle #852
 

by: Klaus

 18-Oct-2026, 08:58
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E4=5 makes it quite nice
 

by: John

 18-Oct-2026, 20:17
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Perfect hint, Klaus. Lots of nice setti work.
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by: acs
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 The Weekly Str8ts BX puzzle #244
 

by: Miki

 18-Oct-2026, 06:24
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 Standard tools, B & X power.
 

by: jgrab

 18-Oct-2026, 11:56
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 Str8t forward with standard tools.
 

by: optimator

 18-Oct-2026, 12:22
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 9'
 

by: ThomasF

 18-Oct-2026, 15:03
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 nice, standard B and X tools
 

by: kmr

 18-Oct-2026, 16:45
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Like the others. Nice and solvable with standard tools.
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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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  • Impossible for me. Chain after chain until I lose my place. Cruel and unusual punishment.
    - ataraxia
  • 0:40:35 im 2. Versuch. Sehr schwer!
    - zoo-pony (Tartlau)
  • 42 min im 3. Versuch mit allen Hinweisen
    - Rot
  • 2nd, with all hints = easy
    - chris 1
  • 1:03 Thanks to Klaus. His hint makes it very smooth :)
    - Marit
  • 1 h, thanks to Klaus. Wings, fishes, URs and Settis
    - ThomasF
  • just 1 hour, horrible
    - Richard
  • ich habs nicht geschafft heute und musste die hilfe von klaus nehmen.
    - dersoloist
  • Puuuh! 41 min. with one lucky guess. Hard work.
    - Amoena
  • Needed the hint, but no chain needed. Setti on 1 helps in the end.
    - Jonas
  • Failed first time. Took hint and did in 15'
    - Maven
  • 55 min. Hint: 8x(3+4)
    - Alfredo
  • Bunch of chains/guesses.
    - GT
  • 17 min, hintful experience
    - 7Iron
  • Thanks to Klaus and Nessi: 31 min with E4 and E5 hint and interruptions...
    - Beate
  • Is this kind of 5* solveable without guessing? Can someone explain the neccessary techniques?
    - schmidl
  • 22' with Nessi's E5 hint.
    - l.
  • 1.14 with Klaus
    - Cleo
  • thx to Klaus, still a chain in col6
    - easydoesit
  • No chance without Klaus' hint.
    - jgrab
  • Hart, x-wings, settis halblebig mit Raten - gute 2 Stunden
    - b*k*
  • 1h15min - thanks to Klaus
    - Kate
  • 2:22 - what a beast! Try and error, but finally solved! A real 5 *
    - Susi
  • 3 h, very hard, needed HC.
    - H.E.
  • 40' - one chain
    - AB_Traherne
  • 44‘
    - A. Friend
  • 17 min - a real challenge
    - Nessi