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too hard for draw and play function?

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peter urhegyi

Joined: 26 Oct 2020
Posts: 28

Posted: Wed Jul 27, 2022 5:24 pm Post subject: too hard for draw and play function?

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

Clement

Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania

Posted: Mon Aug 01, 2022 10:45 pm Post subject:

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

TomC

Joined: 30 Oct 2020
Posts: 359
Location: Wales

Posted: Tue Aug 02, 2022 7:35 am Post subject:

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

immpy

Joined: 06 May 2017
Posts: 574

Posted: Fri Aug 05, 2022 7:06 pm Post subject:

Good eye Tom. cheers...immp

Pat

Joined: 23 Feb 2010
Posts: 207

Posted: Sun Oct 09, 2022 4:58 pm Post subject:

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

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