Thread - Outside Sudoku From Hot Pot Solution Steps

@ 2010-11-08 11:02 AM (#2420 - in reply to #2419) (#2420) Top

purifire

Posts: 460

Country : India

purifire posted @ 2010-11-08 11:02 AM

Again based on normal sudoku rules, we also fill up the entire Box 8.

R7C4=9, R7C6=5, R8C6=7, R8C4=6.

(OStep9.png)

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OStep9.png (37KB - 0 downloads)

@ 2010-11-08 11:07 AM (#2421 - in reply to #2420) (#2421) Top

purifire

Posts: 460

Country : India

purifire posted @ 2010-11-08 11:07 AM

Now in Box 6, the middle row has a sum of 22 which can only be either 9,6,7 or 9,8,5. since 6 and 7 are already present in Column 8, the middle row has to be 9,8,5.

By normal sudoku rules, R5C8=8,R5C7=5,R3C8=5,R4C3=8, R4C8=2.

By constraints of Box 4, R5C1 has to be a 7.

(OStep10.png)

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OStep10.png (40KB - 1 downloads)

@ 2010-11-08 11:11 AM (#2422 - in reply to #2421) (#2422) Top

purifire

Posts: 460

Country : India

purifire posted @ 2010-11-08 11:11 AM

After step 10, since all external constraints are satisfied, the present grid can be solved logically as any other classic sudoku.

Hope this was helpful.

Rishi (purifire)

@ 2010-11-08 4:52 PM (#2425 - in reply to #2409) (#2425) Top

debmohanty

Country : India

debmohanty posted @ 2010-11-08 4:52 PM

Thanks cpickerel and Rishi for the detailed writeup with images.

RJH0723, hope that was useful to you.

@ 2010-11-09 2:30 AM (#2433 - in reply to #2409) (#2433) Top

RJH0723

Posts: 13

Country : United States

RJH0723 posted @ 2010-11-09 2:30 AM

Thanks Guys. That helped a lot. The key thing I missed was the R6 skyscraper constraint. That would have enabled me to finish it. You guys are the best!

@ 2010-11-09 11:10 PM (#2449 - in reply to #2433) (#2449) Top

purifire

Posts: 460

Country : India

purifire posted @ 2010-11-09 11:10 PM

RJH0723 - 2010-11-09 2:30 AM

Thanks Guys. That helped a lot. The key thing I missed was the R6 skyscraper constraint. That would have enabled me to finish it. You guys are the best!

Glad this was helpful....

Rishi


	@ 2010-11-08 11:02 AM (#2420 - in reply to #2419) (#2420) Top
purifire Posts: 460 Country : India	purifire posted @ 2010-11-08 11:02 AM Again based on normal sudoku rules, we also fill up the entire Box 8. R7C4=9, R7C6=5, R8C6=7, R8C4=6. (OStep9.png) Attachments ---------------- OStep9.png (37KB - 0 downloads)
	@ 2010-11-08 11:07 AM (#2421 - in reply to #2420) (#2421) Top
purifire Posts: 460 Country : India	purifire posted @ 2010-11-08 11:07 AM Now in Box 6, the middle row has a sum of 22 which can only be either 9,6,7 or 9,8,5. since 6 and 7 are already present in Column 8, the middle row has to be 9,8,5. By normal sudoku rules, R5C8=8,R5C7=5,R3C8=5,R4C3=8, R4C8=2. By constraints of Box 4, R5C1 has to be a 7. (OStep10.png) Attachments ---------------- OStep10.png (40KB - 1 downloads)
	@ 2010-11-08 11:11 AM (#2422 - in reply to #2421) (#2422) Top
purifire Posts: 460 Country : India	purifire posted @ 2010-11-08 11:11 AM After step 10, since all external constraints are satisfied, the present grid can be solved logically as any other classic sudoku. Hope this was helpful. Rishi (purifire)
	@ 2010-11-08 4:52 PM (#2425 - in reply to #2409) (#2425) Top
debmohanty Country : India	debmohanty posted @ 2010-11-08 4:52 PM Thanks cpickerel and Rishi for the detailed writeup with images. RJH0723, hope that was useful to you.
	@ 2010-11-09 2:30 AM (#2433 - in reply to #2409) (#2433) Top
RJH0723 Posts: 13 Country : United States	RJH0723 posted @ 2010-11-09 2:30 AM Thanks Guys. That helped a lot. The key thing I missed was the R6 skyscraper constraint. That would have enabled me to finish it. You guys are the best!
	@ 2010-11-09 11:10 PM (#2449 - in reply to #2433) (#2449) Top
purifire Posts: 460 Country : India	purifire posted @ 2010-11-09 11:10 PM RJH0723 - 2010-11-09 2:30 AM Thanks Guys. That helped a lot. The key thing I missed was the R6 skyscraper constraint. That would have enabled me to finish it. You guys are the best! Glad this was helpful.... Rishi