dailysudoku.com :: View topic

dailysudoku.com
Discussion of Daily Sudoku puzzles

FAQ

Memberlist

Usergroups

Profile

Enjoy IV

dailysudoku.com Forum Index -> Other puzzles

View previous topic :: View next topic

Author

Message

Mogulmeister

Joined: 03 May 2007
Posts: 1151

Posted: Mon Feb 21, 2022 1:31 pm Post subject: Enjoy IV

Code:

+-------+-------+-------+
| . . 9 | 6 . . | . . . |
| . . 4 | . . 5 | 8 . . |
| 2 6 . | 9 4 . | 5 . . |
+-------+-------+-------+
| 3 . 2 | 7 . . | . . 8 |
| . . 5 | . . . | . . . |
| . 9 . | . . 4 | 3 . . |
+-------+-------+-------+
| . 2 3 | . . 9 | . 5 . |
| . . . | . . . | 4 1 . |
| . . . | 5 . . | . . 9 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Mogulmeister

Joined: 03 May 2007
Posts: 1151

Posted: Mon Feb 21, 2022 1:32 pm Post subject:

This is another that can be done in a number of ways.

Clement

Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

Posted: Tue Feb 22, 2022 7:29 pm Post subject:

WOOW Four Steps

Code:

+---------------------+---------------------+-------------------+
| 5 138 9 | 6 138 138 | 7 A24 B24 |
| 17 137 4 |b123 c1237 5 | 8 9 6 |
| 2 6 e78 | 9 4 d78 | 5 3 1 |
+---------------------+---------------------+-------------------+
| 3 14 2 | 7 5 16 | 9 46 8 |
| 4678 478 5 | 238 9 2368 | 1 D67-24 C24 |
| 1678 9 1678 | 128 1268 4 | 3 267 5 |
+---------------------+---------------------+-------------------+
| 18 2 3 | 4 18 9 | 6 5 7 |
| 9 5 67-8 |a28 2678 2678 | 4 1 3 |
| 1467 147 167 | 5 1367 1367 | 2 8 9 |
+---------------------+---------------------+-------------------+

Step 1: Type 1 UR(24)r15c89 => - 24r5c8
Step 2: (8=2)r8c4 - r2c4 = (2-7)r2c5 = r3c6 - (7=8)r3c3 => - 8r8c3

Code:

+----------------------+-----------------------+----------------+
| 5 13-8 9 | 6 a*38 138 | 7 24 24 |
| 17 137 4 | C123 D237 5 | 8 9 6 |
| 2 6 Fc78 | 9 4 E78 | 5 3 1 |
+----------------------+-----------------------+----------------+
| 3 14 2 | 7 5 16 | 9 46 8 |
| 467 478 5 | 238 9 2368 | 1 67 24 |
| 167 9 b1678 | 128 a268 4 | 3 267 5 |
+----------------------+-----------------------+----------------+
| 8 2 3 | 4 1 9 | 6 5 7 |
| 9 5 67 | B28 A2678 2678 | 4 1 3 |
| 1467 147 167 | 5 367 367 | 2 8 9 |
+----------------------+-----------------------+----------------+

Step 3: Kraken Column (8)r168c5
a*(8)r1c5 - (8)r1c2
a(8)r6c5 - r6c3 = r3c3 - (8)r1c2
A(8)r8c5 - (8=2)r8c4 - r2c4 = (2-7)r2c5 = r3c6 - (7=8)r3c3 - (8)r1c2 => - 8r1c2

Code:

+---------------------+---------------------+----------------+
| 5 a13 9 | 6 b38 138 | 7 24 24 |
| 17 137 4 | 123 23 5 | 8 9 6 |
| 2 6 8 | 9 4 7 | 5 3 1 |
+---------------------+---------------------+----------------+
| 3 4-1 2 | 7 5 16 | 9 46 8 |
| 467 8 5 | 23 9 236 | 1 67 24 |
|e167 9 e167 | d128 c268 4 | 3 267 5 |
+---------------------+---------------------+----------------+
| 8 2 3 | 4 1 9 | 6 5 7 |
| 9 5 67 | 28 2678 268 | 4 1 3 |
| 1467 147 167 | 5 367 36 | 2 8 9 |
+---------------------+---------------------+----------------+

Step 4: (1=3)r1c2 - (3=8)r1c5 - r6c5 = (8-1)r6c4 = (1)r6c31 => - 1r4c2; stte

Mogulmeister

Joined: 03 May 2007
Posts: 1151

Posted: Wed Feb 23, 2022 8:00 am Post subject:

Really nice Clement. Particularly the Kraken Column which is saying that whichever 8 appears in col 5, r1c2 < > 8.

TomC

Joined: 30 Oct 2020
Posts: 358
Location: Wales

Posted: Wed Feb 23, 2022 10:36 am Post subject:

Multi steps for me too

First step from Clement's 1st grid <178> XY pivot r2c1 gives -8 r8c3

Leads to

Code:

+---------------+---------------+-----------+
| 5 138 9 | 6 38 138 | 7 24 24 |
| 17 137 4 | 123 237 5 | 8 9 6 |
| 2 6 78 | 9 4 78 | 5 3 1 |
+---------------+---------------+-----------+
| 3 14 2 | 7 5 16 | 9 46 8 |
| 467 478 5 | 238 9 2368 | 1 2467 24 |
| 167 9 1678 | 128 268 4 | 3 267 5 |
+---------------+---------------+-----------+
| 8 2 3 | 4 1 9 | 6 5 7 |
| 9 5 67 | 28 2678 2678 | 4 1 3 |
| 1467 147 167 | 5 367 367 | 2 8 9 |
+---------------+---------------+-----------+

Play this puzzle at the Daily Sudoku site

Then row 3 skyscrapers on 7 and 8 gives -7 r9c6 and -8 r5c6
Then -3 in r5c6 as then r9c6=6, r4c6=1 gives <28> "triple" in c4

This then reveals a <246> XY pivot r5c9 gives -6 in r4c6 and r5c8 which solves the puzzle

Display posts from previous:

	dailysudoku.com Forum Index -> Other puzzles	All times are GMT
Page 1 of 1

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum