dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Extreme 120520

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
immpy



Joined: 06 May 2017
Posts: 571

PostPosted: Sat Dec 05, 2020 6:18 pm    Post subject: Extreme 120520 Reply with quote

Hello all, enjoy the puzzle...

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Sun Dec 06, 2020 8:00 pm    Post subject: Reply with quote

Code:
+--------------+----------------+-----------------+
| 8   4   236  | 7    156 2356  | 126  9     23   |
| 26  1   9    | 268  4   2368  | 7    2368  5    |
| 5   267 2367 | 1268 168 9     | 1268 12368 4    |
+--------------+----------------+-----------------+
| 236 26  4    | 9    58  58    | 236  7     1    |
| 7   5   8    | 26   3   1     | 4    26    9    |
| 236 9   1    | 4    67  267   | 236  5     8    |
+--------------+----------------+-----------------+
| 1   267 2567 | 568  9   4     | 258  238   237  |
| 4   3   57   | 158  2   78    | 9    18    6    |
| 9   8   2567 | 3    167 67    | 125  4     27   |
+--------------+----------------+-----------------+

8r8c6 - (8=1)r8c8 - (18=5)r8c4 - (58=6)r7c4 - (6=2)r5c4 - [(2=6)r5c8-(6=2*|3)r46c7 -(26=8)r2c4] - (268=1)r3c4 - (18=6)r3c5 - (12*6=8)r3c7 - (2*8=5)r7c7 - (2*5=1)r9c7 contradiction (i.e. 1r8c8, 1r9c7) => r8c6 <> 8; stte.
Back to top
View user's profile Send private message
Clement



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

PostPosted: Mon Dec 07, 2020 8:30 pm    Post subject: Extreme 120520 Reply with quote

Code:

+------------------+---------------------+---------------------+
| 8     4     236  | 7      g156   f2356 | h126    9       23  |
| 26    1     9    | 268     4      2368 | 7      b2368    5   |
| 5     267   2367 | 1268   d168    9    | c1268  b2368-1  4   |
+------------------+---------------------+---------------------+
| 236   26    4    | 9      e58    e58   | 236     7       1   |
| 7     5     8    | 26      3      1    | 4       26      9   |
| 236   9     1    | 4       67     267  | 236     5       8   |
+------------------+---------------------+---------------------+
| 1     267   2567 | 568    9       4    | 258     238     237 |
| 4     3     57   | 158    2       78   | 9      a18      6   |
| 9     8     2567 | 3      167     67   | 25-1    4       27  |
+------------------+---------------------+---------------------+

Step 1: (1=8)r8c8 - r23c8 = r3c7 - r3c5 = (85)r4c56 - (5)r1c6 = (5-1)r1c5 = (1)r1c7 => - 1r9c7, r3c8
Code:

+--------------------+-----------------+---------------------+
| 8      4      236  | 7     56    235 | 1      9        23  |
| 26     1      9    | 28    4     238 | 7     e2368     5   |
| 5      267    2367 | 1    c68    9   |d268   d2368     4   |
+--------------------+-----------------+---------------------+
| 236    26     4    | 9    b58   a58  | 236    7        1   |
| 7      5      8    |g26    3     1   | 4     f26       9   |
| 236    9      1    | 4     7     26  | 236    5        8   |
+--------------------+-----------------+---------------------+
| 1      267    2567 |g56     9     4   | 258    238     237 |
| 4      3      57   |g58     2     7-8 | 9      1       6   |
| 9      8      2567 | 3      1     67  | 25     4       27  |
+--------------------+------------------+--------------------+

Step 2: (8)r4c6 = r4c5 - (8=6)r3c5 - r3c78 = r2c8 - (6=2)r5c8 - (2=658)r578c4 => - 8r8c6; stte
Back to top
View user's profile Send private message AIM Address
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles All times are GMT
Page 1 of 1

 
Jump to:  
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


Powered by phpBB © 2001, 2005 phpBB Group