View previous topic :: View next topic |
Author |
Message |
immpy
Joined: 06 May 2017 Posts: 570
|
Posted: Thu Sep 21, 2023 4:54 pm Post subject: VH+ 092123 |
|
|
Hello all, enjoy the puzzle.
Code: |
+-------+-------+-------+
| 9 . . | . . . | . . 2 |
| . 8 5 | 4 . . | 3 9 . |
| . 2 . | . . . | . 6 . |
+-------+-------+-------+
| . . . | . 1 . | . . . |
| . 6 3 | . . . | 5 7 . |
| . 5 . | 6 . 3 | . 8 . |
+-------+-------+-------+
| . 7 . | 1 9 4 | . 3 . |
| . . . | 2 . 8 | . . . |
| . . 4 | 7 5 6 | 9 . . |
+-------+-------+-------+
|
Play this puzzle online at the Daily Sudoku site
cheers...immp |
|
Back to top |
|
![](templates/subSilver/images/spacer.gif) |
dongrave
Joined: 06 Mar 2014 Posts: 564
|
Posted: Sat Sep 23, 2023 2:23 pm Post subject: |
|
|
Thanks for the puzzle immp!
After basics:
Code: | +---------------+--------------+-----------------+
| 9 4 167 | 3 678 157 | 178 15 2 |
| 167 8 5 | 4 267 127 | 3 9 17 |
| 3 2 17 | 589 78 1579 | 1478 6 14578 |
+---------------+--------------+-----------------+
| 2478 9 278 | 58 1 257 | 6 a24 3 |
| 1248 6 3 | 89 248 29 | 5 7 b14 |
| 1247 5 127 | 6 247 3 | 124 8 9 |
+---------------+--------------+-----------------+
| 2568 7 268 | 1 9 4 | 28 3 56 |
| 56 1 9 | 2 3 8 | 47 45 4567 |
| d28 3 4 | 7 5 6 | 9 1-2 c18 |
+---------------+--------------+-----------------+ |
Then I used 2 steps to solve it.
Step 1: (2=4)r4c8-(4=1)r5c9-(1=8)r9c9-(8=2)r9c1 => r9c8 != 2.
Code: | +--------------+---------------+--------------+
| 9 4 167 | 3 678 17 | 18 5 2 |
| a67 8 5 | 4 267 c127 | 3 9 b17 |
| 3 2 17 | 59 78 59 | 148 6 147 |
+--------------+---------------+--------------+
| 4 9 78 | 58 1 57 | 6 2 3 |
| f18 6 3 | e89 24 d29 | 5 7 14 |
| g17 5 2 | 6 47 3 | 14 8 9 |
+--------------+---------------+--------------+
| 568 7 68 | 1 9 4 | 2 3 56 |
| 56 1 9 | 2 3 8 | 7 4 56 |
| 2 3 4 | 7 5 6 | 9 1 8 |
+--------------+---------------+--------------+ |
Step 2: 7r2c1-(7=1)r2c9-(17=2)r2c6-(2=9)r5c6-(9=8)r5c4-(8=1)r5c1-(1=7)r6c1 contradiction => r2c1 != 7; stte. |
|
Back to top |
|
![](templates/subSilver/images/spacer.gif) |
Clement
Joined: 24 Apr 2006 Posts: 1110 Location: Dar es Salaam Tanzania
|
Posted: Thu Sep 28, 2023 2:44 pm Post subject: VH+ 092123 |
|
|
Three steps Code: |
+------------------+-------------------+--------------------+
| 9 34 167 | 358 678 157 | 1478 14 2 |
| 167 8 5 | 4 267 127 | 3 9 17 |
| 34 2 17 | 3589 78 1579 | 1478 6 14578 |
+------------------+-------------------+--------------------+
| 2478 49 2789 | 589 1 2579 | 6 24 3 |
| 1248 6 3 | 89 248 29 | 5 7 149 |
| 1247 5 1279 | 6 247 3 | 124 8 149 |
+------------------+-------------------+--------------------+
|c2568 7 c268 | 1 9 4 |b28 3 568 |
| 56 19 69 | 2 3 8 | 147 145 14567 |
|d238 e3-1 4 | 7 5 6 | 9 12 a18 |
+------------------+-------------------+--------------------+
|
Step 1: (1=8)r9c9 - (8=2)r7c7 - r7c12 = (2-3)r9c1 = (3)r9c2 => - 1r9c2
Code: |
+------------------+--------------------+---------------------+
| 9 4 167 | 3 678 157 | 178 15 2 |
| 167 8 5 | 4 267 127 | 3 9 17 |
| 3 2 17 | 589 78 1579 | 1478 6 14578 |
+------------------+--------------------+---------------------+
| 2478 9 278 | 58 1 257 | 6 24 3 |
| 1248 6 3 | 89 248 29 | 5 7 b14 |
| 1247 5 127 | 6 247 3 |c124 8 9 |
+------------------+--------------------+---------------------+
|e2568 7 e268 | 1 9 4 |d28 3 568 |
| 56 1 9 | 2 3 8 | 47 45 4567 |
|f2-8 3 4 | 7 5 6 | 9 12 a18 |
+------------------+--------------------+---------------------+
|
Step 2: (8=1)r9c9 - r5c9 = (1-2)r6c7 = r7c7 - r7c13 = (2)r9c1 => - 8r9c1
Code: |
+-------------------+--------------------+-------------------+
| 9 4 167 | 3 678 17 | 18 5 2 |
| 167 8 5 | 4 267 127 | 3 9 17 |
| 3 2 17 | 59 78 59 | 148 6 147 |
+-------------------+--------------------+-------------------+
| 4 9 78 | 58 1 57 | 6 2 3 |
| 18 6 3 | 89 24 29 | 5 7 14 |
| 17 5 2 | 6 47 3 | 14 8 9 |
+-------------------+--------------------+-------------------+
|#8-56 7 68 | 1 9 4 | 2 3 #56 |
|#56 1 9 | 2 3 8 | 7 4 #56 |
| 2 3 4 | 7 5 6 | 9 1 8 |
+-------------------+--------------------+-------------------+
|
Step 3: Type 1 UR(56)r78c19 => - 56r7c1; stte |
|
Back to top |
|
![](templates/subSilver/images/spacer.gif) |
|