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Extra Puzzle Series
For those of us in self-isolation or quarantine with too much time on their hands, I have expanded the Str8ts puzzles to a new 'every two-days' series. Check out the new player. Stay well.
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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Puzzles 1 to 250 are available as Puzzle Packs, just $5.49. Pack 3, 4 and 5 just released!

Discussion...
Latest threads are now at the top.
In addition, 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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by:Santa Klaus

 4-Dec-2021, 07:21  

is.gd/20_days_left_2021

(yesterday i forgot about my name, but j reminded me)
 

by: Andy B.

 4-Dec-2021, 08:23  
 
look who entered the chimney!
welcome Santa!
glad to see yiu are back!

 

by: KDN

 4-Dec-2021, 11:15  
 
Thanks@Santa Klaus
it's always a pleasure to see you back with the advent calendar (and of course not only for the calendar). This one is a setti festival combined with some wings. Now I will go back to yesterdays one which is still open

 

by: ThomasF

 4-Dec-2021, 11:17  
 
thanks Santa, that is a nice one for standard tools. Happy to see you back for the calendar.
MoSC

 

by: jgrab

 4-Dec-2021, 12:07  
 
Thanks again! One Setti after the other.

 

by: kmr

 4-Dec-2021, 15:38 Add to this thread
 
Thank you, great puzzle and lots of fun.

by:Klaus

 3-Dec-2021, 10:57  

is.gd/21_days_left_2021
 

by: robo

 3-Dec-2021, 15:51  
 
Advent, advent.

Thanks for a nice chainless fishy puzzle.

 

by: Toni

 3-Dec-2021, 18:30  
 
Yes, that was fun, some fishes and I also used some SIs (or one might say simple head chains). Thx

 

by: jgrab

 3-Dec-2021, 22:09  
 
Very, very nice! Fishes appear and wait to be found. Thank you, Santa Klaus.

 

by: Andy B.

 4-Dec-2021, 08:37 Add to this thread
 
great puzzle - thanks !!!
no chain.

by:Ulrich

 1-Dec-2021, 13:42  
v.gd/Ulrich_597
 

by: jgrab

 1-Dec-2021, 17:53  
 
Thanks for the extra! I used one early chain to disprove a DE4 alternative; the rest was Setti and CE.

 

by: Toni

 1-Dec-2021, 18:05  
 
A chainless quick and easy one. Still very nice of course. Thx

 

by: Jens

 2-Dec-2021, 09:39  
 
Like Toni - one X-Wing clears all.

 

by: BP

 3-Dec-2021, 20:46  
 
Very smooth. Thanks, Ulrich, the other one was to chainy for us.

 

by: ThomasF

 4-Dec-2021, 11:46  
 
thanks Ulrich, some setti do it
MoSC

 

by: KDN

 4-Dec-2021, 11:49 Add to this thread
 
Thanks@Ulrich
very nice and easy one

by:Ulrich

 28-Nov-2021, 16:34  
v.gd/miniBlack

Pure desert, no wings, no fishes... nothing
 

by: Jens

 28-Nov-2021, 20:22  
 
Empty cells - desert? miniBlack: it isn't easy to find out the first fixed number, but then ... nice idea, thanks to Ulrich.

 

by: Klaus

 29-Nov-2021, 19:49  
 

i like that kind of stuff, somewhat Str8ts at its purest. everything is possible everywhere, hard to get a grip on it. but still, the dependencies of the compartments is so that its possible.

nice to see you back in action Ulrich.

 

by: Ulrich

 30-Nov-2021, 17:16  
 
It‘s really weird ;-)

 

by: tg

 2-Dec-2021, 09:30  
 
So far I do not get the "grip". Any hint for me?

 

by: hoke

 2-Dec-2021, 13:05  
 
While we are waiting for a hint...
The Online Solver does not start, but you can enter one clue at J7 i.e. and watch. Have fun.

 

by: Jens

 2-Dec-2021, 15:20  
 
After Compartment Check there are only 4 digits left in J8. One of them can be eliminated because of conflict in col 3. Now it's possible to test the 3 left digits of J8 with the litle help of solver.

 

by: hoke

 3-Dec-2021, 06:35 Add to this thread
 
Testing, then going back, "... To wear that ball and chain."

by:morl

 28-Nov-2021, 11:09  
is.gd/morl597_1
 

by: Toni

 28-Nov-2021, 12:56  
 
Also a very nice one. In the end I needed a si. Thx, morl

 

by: jgrab

 28-Nov-2021, 22:45  
 
Nice indeed. For me, more a little chain than a SI.

 

by: Martinus

 28-Nov-2021, 23:26  
 
Like jgrab. Thanks

 

by: BP

 29-Nov-2021, 14:18  
 
Very nice indeed, sveral wings and a setti consideration on two digits did it. Thanks, morl.

 

by: Jens

 30-Nov-2021, 17:04  
 
Very nice like BP: Result of that consideration is a simple triage.

 

by: kmr

 3-Dec-2021, 19:21 Add to this thread
 
Great puzzle. Like BP, two digits need to be carefully considered. A8 is the key.

by:kst

 28-Nov-2021, 08:42  
v.gd/kst_597_BX
 

by: Toni

 28-Nov-2021, 11:50  
 
Very nice one. One SI at the beginning and one SI to let the puzzle more or less collapse. Great puzzle. Thank you once more, kst.

 

by: Toni

 28-Nov-2021, 11:53  
 
Correction: The second SI is not even needed as I have just seen.

 

by: Martinus

 28-Nov-2021, 12:00  
 
Also a nice difficulty level. Thanks!

 

by: Susan

 28-Nov-2021, 13:04  
 
I loved it! Just the right level of difficulty

 

by: BP

 28-Nov-2021, 13:42  
 
A smooth start into a new str8ts week. Many thanks!

 

by: ralph maier

 2-Dec-2021, 12:08 Add to this thread
 
tricky but it solves. In the beginning you have to decide high low on the diagonals . so iguess that is where the SI mentioned above comes in . After that CE well iwas a bit careless only the 5th time i got it right , A very nice puzzle indeed

by:kst

 28-Nov-2021, 08:41  
v.gd/kst_597_B
 

by: Toni

 28-Nov-2021, 11:19  
 
Nice and not very difficult

 

by: BP

 28-Nov-2021, 18:42 Add to this thread
 
Quick with settis.

by:kst

 28-Nov-2021, 08:41  
v.gd/kst_597_X
 

by: jgrab

 28-Nov-2021, 09:21  
 
23 min; only concentrated work. Thanks.

 

by: Toni

 28-Nov-2021, 09:52  
 
after a very smooth and quick start (with almost completely filled X) one needs to search a bit more careful for smaller wings that - - together with setti arguments - lead to a chainfree solution. I liked it, thx!

 

by: Martinus

 28-Nov-2021, 10:10  
 
Not too hard, but very nice. X power, fishes, settis

 

by: ThomasF

 28-Nov-2021, 10:47  
 
Like Martinus, very nice level of difficulty

 

by: Hel

 28-Nov-2021, 13:23  
 
Also a very nice chainfree puzzle, thanks a lot, kst

 

by: BP

 30-Nov-2021, 20:37 Add to this thread
 
CE and fishes. Thanks, kst, for another great str8ts week!

by:kst

 28-Nov-2021, 08:41  
v.gd/kst_597
 

by: Toni

 28-Nov-2021, 09:30  
 
Nice, small wings, CE, settis and a quite obvious UR argument. Pure chainless fun.

 

by: jgrab

 28-Nov-2021, 09:47  
 
25 min; mainly Settis.

 

by: Susan

 28-Nov-2021, 12:03  
 
A wonderful puzzle, only CE and wings. Needed not even settis. Thank you

 

by: Hel

 28-Nov-2021, 12:16  
 
Only one short wing needed, very nice.

 

by: ThomasF

 28-Nov-2021, 12:23  
 
Very nice puzzle, some setti, some wings

 

by: Frank

 28-Nov-2021, 22:48  
 
What do I overlook? Can't solve it...

 

by: robo

 29-Nov-2021, 07:52  
 
Quite a few chains ...

 

by: Frank

 29-Nov-2021, 09:32  
 
o.k.....becauese I thought it was chainless.

 

by: morl

 29-Nov-2021, 10:01  
 
Hmmmm... if I didn't make a mistake somewhere, a UR in the upper right corner is enough.

 

by: Frank

 29-Nov-2021, 11:49  
 
I see the UR you mentioned. But it doesn't help me to solve. Or do you have another hint? Can't see that Settis or this UR and fishes on 5 and 6 solve this one.

 

by: Cindy

 29-Nov-2021, 16:08  
 
Big fish on four

 

by: BP

 29-Nov-2021, 17:47  
 
Str8tforwatd with UR and settis.

 

by: robo

 30-Nov-2021, 11:21 Add to this thread
 
I actually overlooked the UR. Indeed solvable then with BCA, fishes and carefully looking at high-lows.

by:Jens

 28-Nov-2021, 05:20  
Discussion of Andrew's Extreme Str8ts Puzzle, Weekly Edition #597, Nov 28 - Dec 4
 

by: Jens

 28-Nov-2021, 05:22  
 
Solvers job or WC****

 

by: Andrejs

 28-Nov-2021, 21:21  
 
All reviewers have found this puzzle to be easy. This means that our skills are at a good level.

 

by: Ulrich

 1-Dec-2021, 13:47  
 
Andrew's online solver solved it, i.e. it is per definition not an extreme!
He improved his online solver recently (on Nov. 2nd). May be, the offline solver is not yet at the same level.

 

by: Andrejs

 2-Dec-2021, 16:48 Add to this thread
 
I like to solve puzzles myself without the help of solvers.



Article created on 27-June-2010.
This page was last modified on 16-March-2020.
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  • 6:30 min, easy
       - Nope - 3 hours ago
  • 6 min: Just filling in numbers
       - JimKnopf - 5 hours ago
  • 14 min
       - Kurt - 7 hours ago
  • 16 mins. Nice and easy!! Thanks
       - CC - 2 days ago
  • 13´, not 5 stars, easy forward, maybe too slow, but a little bit drunken
       - Dias - 3 days ago
  • 18:35, surprisingly!
       - aendgraend - 3 days ago
  • 18 min
       - Rainman - 3 days ago
  • 15 min - very nice one
       - relijo - 3 days ago
  • fertig in 20'
       - JoeP - 4 days ago
  • 8.40 min quite an easy one. nevertheless fun!
       - newby - 4 days ago
  • easy, 7 min
       - malue74 - 4 days ago
  • 20’, basic tools only. Hope everyone stays healthy and safe!
       - GC - 4 days ago
  • nice and easy one
       - essie - 4 days ago
  • 15 min with just basic strategies. relaxing
       - M-Michael - 5 days ago
  • 15.10
       - Ronny - 5 days ago
  • str8 4ward
       - ttbass - 5 days ago
  • 12 Min. straight on
       - Joe Reitzl - 5 days ago
  • 6 min
       - nina - 5 days ago
  • 6 min
       - nina - 5 days ago
  • very easy one - just a couple of clicks
       - Ske - 5 days ago
  • 15 min without solver, straigthforward. Nice.
       - joeB - 5 days ago
  • 9'50
       - martijn - 5 days ago
  • 14 min. - logic and setti 1
       - tbr - 5 days ago
  • 20 minutes while listening to Omicron update…
       - EddyBear - 5 days ago
  • 11'30" no solver, setti on 5 only, no candidates.
       - JT - 5 days ago
  • 17:40. Needed a few settis, but fairly easy overall
       - pefferlass - 5 days ago
  • 11:22 fast, easy, lovely!
       - Latimer - 6 days ago
  • done
       - Loser - 6 days ago
  • 10' Too easy.
       - Aubinger - 6 days ago
  • no candidates needed
       - chris - 6 days ago