Get the Str8ts App
Welcome to the home of Str8ts

#717, March 17 - March 23:
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).

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.
Share and Enjoy
Puzzles 1 to 250 are available as Puzzle Packs, just $5.49. Pack 3, 4 and 5 just released!

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


Your Name or Handle

Your comment or question

Enter these letters arrow

Please keep your comments relevant to this page.
To state your solve time use the smaller form at the top right of this page.
Line breaks and paragraphs are automatically converted. No need to use <p> or <br> tags.
No full solutions please!

by: KlausF

Reply to this post
Mannesmann. Haufen Denkarbeit. 1:40

by: hone

 
Nearly all of my old patterns stubbornly refuse to be solvable with additional B-puzzle constraints. Here is an exception:

is.gd/hone717_Accent_Reloaded_B

 

by: Ben

Add to this thread
 
Very very nice. Develops slowly with standard b-tools. Always one step away from resorting to chains, but they're not needed.

by: hepa

 
I wondered if Jigsaw-Str8ts are possible. Well, here is one. The box shape is „Moonlotus“ (sudokuwiki.org/Jigsaw_Shape_List ). You can visualize the puzzle - except the box shape - using this URL:
str8ts.com/feed/str8ts/ASstr8ts.htm?bd=040000000000000000000000000000000003000000000000000000000000000000000080000050000041328657869570432537246918695417823312085746784632501426891375053764089978053264100000000000001000000000000000000000000100000000000010000000000100000100000100000


 

by: hepa

 
 
Ssorry for the formatting

 

by: alex

 
 
Interesting idea! Took a while to wrap my head around it, would definitely try another one.

 

by: Ben

Add to this thread
 
A great challenge. A bit hard to picture the blocks and b-setti take a lot of extra thought. But doable

by: kst

 


 

by: kris

 
 
perfect level of difficulty, needed the whole toolbox but no chain, thanks kst

 

by: kmr

Add to this thread
 
Like Kris. Challenging but doable step by step.

by: kst

 


 

by: BP

Add to this thread
 
Very nice, CE and B settis. Many thanks!

by: kst

 


 

by: jgrab

 
 
Nice and doable, thanks.

 

by: pets

Add to this thread
 
brilliant challenge - thank you, kst

by: kst

 


 

by: BP

Add to this thread
 
Very nice, settis and fishes. Many thanks.

by: Klaus

 


H/L in row 1 is a HC, after that an additional D8=3 might help

 

by: Jan

 
 
A small HC solves H/L in row 1
Assume A1=3 => DE1=89 => but D4 would be 8 => contradiction

 

by: marianne

 
 
I supposed a relation or even correlation between rE and c5.
Thanks to Klaus for a helpful hint.

 

by: Tati

 
 
@ Jan, Klaus: I made long chains in my head but couldn't find any contradictions. Why can't D4 not be 7?

 

by: Klaus

 
 
Hi Tati,

after Jan's Assume A1=3 => DE1=89, you have not enough 8's in BD4 and BE5.
in which cell exactly you get a contradiction depends on your order of elimination.

 

by: RudiK

 
 
Hi,
why do you guys always write "row 1"? Rows are horizontal. It's column 1, not row 1.

 

by: Tati

 
 
@ Klaus: Thank you, now I've seen my mistake - I overlooked the 8 in C2! So stupid!

 

by: Klaus

 
 
Hi RudiK,

this is because we are all great chessplayers, and of course its row 1, not column 1.

so maybe you should adress your concern to Andrew!?

 

by: aw

Add to this thread
 
Puh - finally done, without any hint, but with 11(!) trial-and-error-decisions spread over the whole field. At least they happened to be all(!) trial and error, what I prefer to trial and success.

Anyway: Probably the most disgusting solution I ever finished - which is of course my problem and not that of the puzzle ... <:-)

Page created on 27-June-2010.
This page was last modified on 08-Jan-2023.
All puzzles on this site are trademarked and cannot be reproduced without permission.
Copyright Syndicated Puzzles Inc, 2010-2023
Caution!
Boast or Rant!
Tell everyone if you solved this puzzle, how long it took or if you gave up.
Name or handle:

Comment,
including time to solve (or not :)


For questions or discussion, please use the main comment form.
  • 48' with all hints an several guessings
    - Ske
  • 2 missing 9, EJ, uff
    - TwoGuess
  • habe stunden gebraucht, mit der D8 hilfe.das war sehr schwer.
    - dersoloist
  • disregard my comment…sorry
    - OneGuess
  • 45 min (3rd try) guess needed, only one 9 missing (c5 and J) rest solves with CE, for me impossible without guess
    - OneGuess
  • 1 day, very hard work, try and error, all settis.
    - S. Walt
  • I solved it finally with Klaus´ hint. Thanks.
    - E.H.
  • Used all hints, but stuck nevertheless.
    - Fred
  • 55 min - Mit dem Hinweis von Klaus und viel Glück
    - Rot
  • done, but needed the hints :(
    - Loser
  • 39 min with hint...
    - EC
  • Uhhh :-) little more then 2 hours, but without any hint, or fishing, just logic. Enjoyable!
    - vicus
  • super difficult for me. I had to use all hints and then I tried 3 times.... at the end it worked without chains, but my brain is smoking.
    - Emma
  • 1:02 - VERY hard, but I did it. Needed all hints and still had to guess two times. Thanks to Klaus.
    - Beate
  • 70 min- One for the brains :) Thank you!
    - effchen
  • 13 min with hints from Klaus and Jan. Thanks, but wishing next week I hope I solve it by myself... What is this for an awfully layout today?
    - Susi
  • 52' - did the right HC by chance, Klaus' hint opened up a long journey of settis and seafood
    - COM
  • Very chainy for me, but it was fun! Took me about 90 min with a little distraction from my kid
    - Berninator
  • @juehe: HC stands for head chain and means assuming low in A123 or A789 runs shortly into a contradiction
    - Hel
  • 45' I liked it, after restarting
    - Richard
  • 23 min in second attempt, Got H9 wrong on first try. Very nice. Could have been more easy, if I'd known what HC means in Klaus' hint...
    - juehe
  • 82 min. hard work, a real amazing 5 star, thank you, Andrew
    - Nessi
  • 35' with Klaus' hint and a lot of settis
    - Hel
  • I can‘t remotely get this beast solved.
    - TheSadOne