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too hard for draw and play function?

 
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peter urhegyi



Joined: 26 Oct 2020
Posts: 27

PostPosted: Wed Jul 27, 2022 5:24 pm    Post subject: too hard for draw and play function? Reply with quote

Code:

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

Play this puzzle online at the Daily Sudoku site
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Mon Aug 01, 2022 10:45 pm    Post subject: Reply with quote

Code:

+-------------------------+-----------------------+--------------------+
| 9       123567   124567 | 134568   3478   45678 | 248   1456    268  |
| 1456    12567    8      | 1456     479    45679 | 249   14569   3    |
| 13456   1356     1456   | 134568   3489   2     | 7     14569   689  |
+-------------------------+-----------------------+--------------------+
| 14      189      149    | 7        23     48    | 6     23      5    |
| 56      5678     3      | 9        28     68    | 1    d27      4    |
| 2       67       467    | 346      5      1     | e389  379     789  |
+-------------------------+-----------------------+--------------------+
| 7       269-5   269-5   | a245     1      3     | 249   8       269  |
|g35      4       259     | a28-5    6      789-5 |f239  c379     1    |
| 8       12369   1269    | a24     a2479  a479   | 5    b34679  b2679 |
+-------------------------+-----------------------+--------------------+

Step 1: (5=2/4,9/7)b8p1789 – (7)r9c89 = r8c8 – (7=23)r54c8 – (3)r6c7 = r8c7 – (3=5)r8c1 => - 5r7c23,r8c46
Code:

+-------------------------+----------------------+--------------------+
| 9       123567   124567 | 13468   3478   45678 | 28    1456    268  |
| 1456    12567    8      | 146     479    45679 | 29    14569   3    |
| 13456   1356     1456   | 13468   3489   2     | 7     14569   689  |
+-------------------------+----------------------+--------------------+
| 14      189      149    | 7       23     48    | 6     23      5    |
|a56      5678     3      | 9      a28    a68    | 1    a27      4    |
| 2       67       467    | 346     5      1     |d389   379    e89-7 |
+-------------------------+----------------------+--------------------+
| 7       269      269    | 5       1      3     | 4     8       269  |
|b35      4        259    | 28      6      789   |c239   379     1    |
| 8       12369    1269   | 24      2479   479   | 5     34679   2679 |
+-------------------------+----------------------+--------------------+

Step 2: (7=2865)r5c8561 – (5=3)r8c1 – r8c7 = (3-8)r6c7 = (8)r6c9 => - 7r6c9
Code:

+-------------------------+----------------------+---------------------+
| 9       123567   124567 | 1346   b3478   b4568 | a28    1456    a268 |
| 1456    12567    8      | 146     479     4569 | 29     14569    3   |
| 13456   1356     1456   | 1346   c3489    2    | 7      14569    689 |
+-------------------------+----------------------+---------------------+
| 14      189      149    | 7       23      48   | 6     e23       5   |
| 56      5678     3      | 9      d28      68   | 1     d27       4   |
| 2       67       467    | 346     5       1    | 389    379      89  |
+-------------------------+----------------------+---------------------+
| 7       269      269    | 5       1       3    | 4      8        29-6|
| 35      4        259    | 8       6       7    | 239    379      1   |
| 8       136      16     | 2       49      49   | 5     e36       7   |
+-------------------------+----------------------+---------------------+

Step 3: (6=2/8)r1c97 – (8)r1c56 = r3c5 – (8=27)r5c58 – (7=36)r49c8 => - 6r7c9; stte
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TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Tue Aug 02, 2022 7:35 am    Post subject: Reply with quote

Code:

+---------------------+-------------------+----------------+
| 9     123567 124567 | 134568 3478 45678 | 248 1456  268  |
| 1456  12567  8      | 1456   479  45679 | 249 14569 3    |
| 13456 1356   1456   | 134568 3489 2     | 7   14569 689  |
+---------------------+-------------------+----------------+
| 14    189    149    | 7      23   48    | 6   23    5    |
| 56    5678   3      | 9      28   68    | 1   27    4    |
| 2     67     467    | 346    5    1     | 389 379   789  |
+---------------------+-------------------+----------------+
| 7     2569   2569   | 245    1    3     | 249 8     269  |
| 35    4      259    | 258    6    5789  | 239 379   1    |
| 8     12369  1269   | 24     479  479   | 5   34679 2679 |
+---------------------+-------------------+----------------+

Play this puzzle online at the Daily Sudoku site

In column 8 there are four cells <23> <27> <379> <379>, use this quad to remove any 2379 from the other cells in column 8 and then basic moves to finish
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Fri Aug 05, 2022 7:06 pm    Post subject: Reply with quote

Good eye Tom.

cheers...immp
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Pat



Joined: 23 Feb 2010
Posts: 207

PostPosted: Sun Oct 09, 2022 4:58 pm    Post subject: Reply with quote



    thanks, TomC!

    of course i prefer the "hidden" {1,4,5,6}
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