Author |
Message |
Topic: Aug 12 VH |
TomC
Replies: 2
Views: 130
|
Forum: Daily Sudoku puzzles Posted: Fri Aug 12, 2022 2:59 pm Subject: Another way |
r1c3 = 2 to solve
+----------------+--------+--------------+
| 3 8 x27 | 5 9 1 | f47 e24 6 |
| 5 4 279 | 37 8 6 | 79 d23 1 |
| a69 b679 1 | 37 2 4 | 8 5 c39 |
+ ... |
Topic: Aug 12 VH |
TomC
Replies: 2
Views: 130
|
Forum: Daily Sudoku puzzles Posted: Fri Aug 12, 2022 11:56 am Subject: Aug 12 VH |
X-wing on <9> in r37c19 removes <9> from r3c2 and r7c7
Then with only one cell containing 3 options it is a BUG pattern that shows that r2c3 cannot be <29> so must be <7> to ... |
Topic: VH+ 080522 |
TomC
Replies: 6
Views: 492
|
Forum: Other puzzles Posted: Mon Aug 08, 2022 7:54 pm Subject: Thanks immpy for a good puzzle |
Well tidy dongrave!
My solution was not so direct, but I got there in the end
1st step
<12> W wing in x removes <2> from y
2nd step
XY chain abcdef gives pincers of <7> in ... |
Topic: too hard for draw and play function? |
TomC
Replies: 3
Views: 885
|
Forum: Other puzzles Posted: Tue Aug 02, 2022 7:35 am Subject: too hard for draw and play function? |
+---------------------+-------------------+----------------+
| 9 123567 124567 | 134568 3478 45678 | 248 1456 268 |
| 1456 12567 8 | 1456 479 45679 | 249 14569 3 |
| 13456 1356 ... |
Topic: Aug 01 VH |
TomC
Replies: 1
Views: 467
|
Forum: Daily Sudoku puzzles Posted: Mon Aug 01, 2022 9:48 am Subject: another way... |
r9c8 = 8 to solve
+--------------------+---------------+--------------+
| 2 78 789 | 4 136 1368 | 5 137 139 |
| 4789 5 4789 | 18 2 138 | 6 137 139 |
| 6 3 ... |
Topic: Jul 30 VH |
TomC
Replies: 1
Views: 452
|
Forum: Daily Sudoku puzzles Posted: Sat Jul 30, 2022 7:31 pm Subject: Jul 30 VH |
XY chain abcd gives pincers of <1> in a+d to remove <1> from r7c8 to solve
+-----------+----------------+----------------+
| 168 2 36 | e18 5 9 | 4 7 138 |
| 18 9 5 ... |
Topic: Jul 27 VH |
TomC
Replies: 2
Views: 649
|
Forum: Daily Sudoku puzzles Posted: Wed Jul 27, 2022 10:55 am Subject: and another ... |
Or you could have -6 in r9c8 to avoid the <45> UR in r79c57 |
Topic: Jul 27 VH |
TomC
Replies: 2
Views: 649
|
Forum: Daily Sudoku puzzles Posted: Wed Jul 27, 2022 9:28 am Subject: Another way |
XY chain abcd shows that if a=3 then d=4 OR if d=7 then a=4
So either a or d must be <4>
Pincers for <4> in a + d give -4 in r5c9 to solve (edit: and of course -4 in r4c6 as well)
... |
Topic: Jul 25 VH |
TomC
Replies: 2
Views: 773
|
Forum: Daily Sudoku puzzles Posted: Mon Jul 25, 2022 9:39 am Subject: Jul 25 VH |
XY chain abcde give pincers on <2> in a + e to give -2 in r2c3 and r3c6 to solve
+-----------+-------------+---------+
| 1 7 5 | 6 9 4 | 3 2 8 |
| 4 38 -238 | 78 e27 5 | 9 1 ... |
Topic: Jul 22 VH |
TomC
Replies: 2
Views: 725
|
Forum: Daily Sudoku puzzles Posted: Mon Jul 25, 2022 9:31 am Subject: Jul 22 VH |
XY chain abcde give pincers on <7> in a + e to give -7 in r6c8
+---------+---------------+--------------+
| 6 78 3 | 9 28 1 | 24 5 47 |
| 9 5 78 | c23 4 238 | d26 e67 1 ... |
Topic: Jul 22 VH |
TomC
Replies: 2
Views: 725
|
Forum: Daily Sudoku puzzles Posted: Sat Jul 23, 2022 9:36 am Subject: Jul 22 VH |
r6c6 = 5 to solve
+---------+---------------+--------------+
| 6 78 3 | 9 28 1 | 24 5 47 |
| 9 5 78 | b23 4 b238 | c26 d67 1 |
| 1 4 2 | 6 5 7 | 8 3 9 |
+-- ... |
Topic: Jul 19 VH |
TomC
Replies: 1
Views: 775
|
Forum: Daily Sudoku puzzles Posted: Tue Jul 19, 2022 10:01 am Subject: Jul 19 VH |
14-6 XY wing in r1c4, r37c5 gives -6 in r1c5, r7c4 |
Topic: Jul 17 VH |
TomC
Replies: 2
Views: 937
|
Forum: Daily Sudoku puzzles Posted: Mon Jul 18, 2022 11:43 am Subject: Jul 17 VH |
W-Wing 1,3 in r2c1,r3c6 SL with number 1 in r1c16 (or r23c9) and -3 in r2c5,r3c1
Which I see as -3 in r2c5,r3c1 as then no <1> in row 1 or box 3 |
Topic: Jul 17 VH |
TomC
Replies: 2
Views: 937
|
Forum: Daily Sudoku puzzles Posted: Sun Jul 17, 2022 9:55 am Subject: Jul 17 VH |
Pincers for <1> in a+d gives -1 in r1c1
+---------------+--------------+----------+
| -17 57 9 | c25 4 d12 | 36 36 8 |
| a13 6 2 | 7 b35 8 | 4 9 15 |
| 134 45 8 ... |
Topic: Jul 14 VH |
TomC
Replies: 1
Views: 771
|
Forum: Daily Sudoku puzzles Posted: Fri Jul 15, 2022 8:27 pm Subject: Jul 14 VH |
I can see this solution but it's taken me longer to explain:
If x=3, a=7, b=4, c=9, d=1 leads to no <1> in box 6
If x=7, b=4, c=9, d=1 leads to no <1> in box 6
So xz is a <14> ... |
Topic: Jul 09 VH |
TomC
Replies: 2
Views: 1126
|
Forum: Daily Sudoku puzzles Posted: Mon Jul 11, 2022 5:58 pm Subject: Re: Jul 09 VH |
Has anyone solved this one? I did, but I had to quess (ugh!).
Hi everyone,
+------------+---------+--------------+
| 3 1 24 | 6 7 8 | 9 5 24 |
| 8 5 6 | 23 9 4 | 17 13 ... |
Topic: Jul 07 VH |
TomC
Replies: 1
Views: 1019
|
Forum: Daily Sudoku puzzles Posted: Thu Jul 07, 2022 9:18 am Subject: Jul 07 VH |
A slightly more scenic route:
X wing on <4> in r67c24 removes <4> in r9c4 (and others)
W wing <27> in r8c3 and r9c4 removes <2> from r8c5 and r9c2 to solve |
Topic: Jul 01 VH |
TomC
Replies: 1
Views: 1164
|
Forum: Daily Sudoku puzzles Posted: Fri Jul 01, 2022 12:34 pm Subject: Jul 01 VH |
r6c1=2 to solve
+------------------+-------------+-----------+
| 1 267 5 | 247 267 3 | 8 9 24 |
| 2349 d23 349 | 24 5 8 | 7 1 6 |
| 246 8 47 | 1 267 9 | ... |
Topic: Jun 30 VH |
TomC
Replies: 2
Views: 1288
|
Forum: Daily Sudoku puzzles Posted: Thu Jun 30, 2022 12:07 pm Subject: After a too long wait.... |
XY chain abcd gives pincers of <7> in a + d to remove <7> from r5c9
+-----------+------------+-------------+
| 3 9 1 | 2 5 8 | 4 67 67 |
| 8 5 4 | 1 6 7 | 2 ... |
Topic: VH+ 062822 |
TomC
Replies: 3
Views: 2032
|
Forum: Other puzzles Posted: Wed Jun 29, 2022 10:24 am Subject: VH+ 062822 |
1st step, remove <4> from r1c6 with 457 XY wing abc
+---------------------+------------------+------------------------+
| 2 6 15 | 9 8 -45 | 1457 3 1457 |
| ... |
|