Str8ts on iOS and Android   Welcome to the home of Str8ts Caution!
Print Version
Str8ts Explained
Play Here...
Android & Apple Apps
Our Service
Str8ts for iOS and Android
Order Str8ts Book 2
Order Now!
1 to 25 - on the iPhone
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.
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!

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

Your Name or Handle

Your comment or question

Enter these lettersarrow

Please keep your comments relevant to this article.
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: pax

Thank you morl,
by using an UR it is a quick exercise.


by: jgrab

Add to this thread
A nice evening work. 26 min; no special moves.



by: witch

very nice one - interaction between B and str8ts did it


by: kmr

Great puzzle, thank you. Needed CE.


by: BP

Very enjoyable. Standard tools plus one UR. Thanks, Leren!


by: dennis

Add to this thread
wow, my first b-solve. thanks for this one!



by: BP

A very smooth start into a new str8ts week. At one point there is an interesting UR concerning B2, which however is not neccessary to solve. Standard tools are sufficient.


by: jgrab

A very nice exercise in standard tools! Beyond the B2 UR, I found another helpful UR nicely combining diagnoals and wings.


by: Hel

Add to this thread
Thank you for this nice X-puzzle!



by: AndreasM

Again, a nice one. Maybe I was having a blind spot, but I didn't make it without a head chain.


by: Cosmanita

I also started to try chains, e.g. in J8, H8 and C3, but did not reached my aim yet. Were did you started the chain?


by: BP

Add to this thread
@Cosmanita: After 16 solved cells: 7 in HJ8 leads by a short HC to a setti 7 contradiction in C.



Reserved for discussion of Andrew's puzzle.


by: hone

Add to this thread
#536 cannot be solved with standard tools. An additional clue is needed to achieve this. There are several candidates. The most challenging is F9=7.

Article created on 27-June-2010.
This page was last modified on 16-March-2020.
All puzzles on this site are trademarked and patented and cannot be reproduced without permission.
Copyright Syndicated Puzzles Inc, 2010-2020

Boast or Rant!
Tell everyone if you solved this puzzle, how long it took or if you gave up.
Name or handle:

including time to solve (or not :)

For questions or discussion, please use the main comment form.
  • 12 min - very easy indeed with the hint
       - Susan - 5 hours ago
  • 35 Min. Hint on E4, lucky guess on J2
       - Joe Reitzl - 6 hours ago
  • @dersoloist E4=4
       - Paul - 9 hours ago
  • can somebody help me? what is E4 ? thanx
       - dersoloist - 1 day ago
  • 31:45 mit dem Hinweis
       - Rot - 1 day ago
  • 65' many chains
       - Arjan - 1 day ago
  • 51' right decision on J2 finally solved quickly
       - Jürgen - 1 day ago
  • 16' at 5th attempt.
       - Aubinger - 2 days ago
  • 67' - still stuck despite the hint
       - COM - 2 days ago
  • 13:40 with hint - Thanks!
       - Korbinian Bär - 2 days ago
  • 15' with hint a nice afternoon diversion, otherwise very tricky
       - Richard - 2 days ago
  • no congratulations without hint
       - chris - 2 days ago
  • 20 min
       - Loser - 2 days ago
  • 16 min. - Only with spoiler. Terafter the most difficult thing was to see what obvioulsy laid bare before ma eyes ...
       - Axel - 2 days ago
  • nice with hint - 18
       - dwg - 2 days ago
  • Tried the whole morning. Then read the comments, saw the hint and voilà. ..
       - susi - 2 days ago
  • stuck without hint, then solved easy
       - EC - 2 days ago
  • 12' with hint super easy, without just impossible (for me)....
       - Emma - 2 days ago
  • the hint was great but it killed the challenge
       - emil - 2 days ago
  • =quarantine-edition no. 11
       - uwe - 2 days ago
  • 18 min - OK
       - kmk - 2 days ago
  • easy with spoiler, cannot do without.
       - Fab - 2 days ago
  • Easy with the hint
       - jgrab - 2 days ago
  • 6 min - very simple thing with the hint, but without ???
       - Checkie - 2 days ago
  • 1.5h
       - Julioflor - 2 days ago
  • 10 min. with spoilers spoiler
       - straddict - 2 days ago
  • easy with hint, unsolvable for me without
       - Hel - 2 days ago
  • 10min with hint, otherwise frustrating
       - l. - 2 days ago
  • which hint?
       - unsolved - 2 days ago
  • with hint in 9 min, without endless chaining
       - easydoesit - 2 days ago