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Regular Samurai #24 http://www.rcbroughton.co.uk/sudoku/forum/viewtopic.php?f=16&t=288 |
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Author: | tarek [ Mon Oct 06, 2008 12:09 am ] |
Post subject: | Regular Samurai #24 |
Regular Samurai #24A (Apprentice) Rating based on required solving techniques: Very Hard 24A Line Format: |
Author: | enxio27 [ Mon Oct 06, 2008 5:54 pm ] |
Post subject: | Re: Regular Samurai #24 |
Hmmm. . . Is the picture in the middle a hint? |
Author: | tarek [ Mon Oct 06, 2008 8:23 pm ] |
Post subject: | Re: Regular Samurai #24 |
enxio27 wrote: Hmmm. . . Is the picture in the middle a hint? It is more than that .... it is a double hint BTW, I couldn't find any better pictures tarek |
Author: | Børge [ Tue Oct 07, 2008 12:30 pm ] |
Post subject: | Re: Regular Samurai #24 |
tarek wrote: BTW, I couldn't find any better pictures Try googling for "X-Wing" and select images. |
Author: | tarek [ Tue Oct 07, 2008 6:59 pm ] |
Post subject: | Re: Regular Samurai #24 |
Thanks Børge tarek |
Author: | Børge [ Wed Oct 08, 2008 4:50 pm ] |
Post subject: | Re: Regular Samurai #24 |
Tarek, Thanks for an enjoyable and IMHO easier puzzle than your last one. Here a mini-mini Walktrough: Hidden Text: |
Author: | tarek [ Wed Oct 08, 2008 7:36 pm ] |
Post subject: | Re: Regular Samurai #24 |
Børge wrote: Tarek, Thanks & well done, I agree that last week's puzzle is more difficult by the virtue of having very little revealed at the time the x-wing arrived ....Thanks for an enjoyable and IMHO easier puzzle than your last one. Here a mini-mini Walktrough: . . . Your path agrees with what I had. Here is the solver's path (including the redundant ones) when arriving at what you mentioned Hidden Text: |
Author: | Børge [ Thu Oct 09, 2008 1:52 pm ] |
Post subject: | Re: Regular Samurai #24 |
tarek wrote: Børge wrote: Tarek, Thanks for an enjoyable and IMHO easier puzzle than your last one. Thanks & well done, I agree that last week's puzzle is more difficult by the virtue of having very little revealed at the time the x-wing arrived ....I personally prefer the somewhat more difficult puzzles, like Regular Samurai #22. I am a bit puzzled by your solver's path after the second X-Wing which yields the eliminations [g5r4c49][g5r9c9]<>4 After the eliminations from the second X-Wing have been done, IMHO the next most obvious step is: Naked Single 9 in g5:r4c4 and not Hidden Single 4 in g5:r6c4 My view may be tainted by the fact that when solving a Sudoku using my personal helper (NOT SOLVER) I normally have "Auto-Replace naked singles with solution" turned on. I find it tiresome having to manually convert Naked Singles to solutions. |
Author: | tarek [ Thu Oct 09, 2008 6:15 pm ] |
Post subject: | Re: Regular Samurai #24 |
I said it before, If you solve with Pencilmarks then it is obvious that Naked singles are easier to spot than Hidden singles. If you are solving without pencilmarks, Then hidden singles are the easiest to spot. IMO the Apprentice level is the limit to solving without pencilmarks. It is all up to personal opinions. Here the solver's path if using Naked singles prior to Hidden singles Hidden Text: BTW, I can confirm that both x-wings are needed in that order. The 2nd x-wing is formed when the hidden single in g5r5c2 is uncovered. tarek |
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