- Code: Select all
*-----------*
|.9.|57.|6..|
|...|.4.|.9.|
|8..|...|7.4|
|---+---+---|
|.3.|61.|9..|
|..2|...|4..|
|..9|.27|.6.|
|---+---+---|
|1.3|...|..9|
|.2.|.3.|...|
|..7|.92|.1.|
*-----------*
Play/Print this puzzle online
Vanhegan Fiendish February 5, 2013
12 posts
• Page 1 of 1
Vanhegan Fiendish February 5, 2013
by ArkieTech » Tue Feb 05, 2013 6:08 am
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dan
-
ArkieTech - Posts: 3355
- Joined: 29 May 2006
- Location: NW Arkansas USA
Re: Vanhegan Fiendish February 5, 2013
by Leren » Tue Feb 05, 2013 8:47 am
- Code: Select all
*--------------------------------------------------------------------------------*
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 |e2-3-9C 6 39 | 7 d23 4 |
|--------------------------+--------------------------+--------------------------|
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39B 8 359 | 4 c35 17 |
| 5 14 9 |a34A 2 7 |b13 6 8 |
|--------------------------+--------------------------+--------------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
*--------------------------------------------------------------------------------*
L2-wing with bivalue extension cell:
-3r6c4 = r6c7 - r5c8 = (3-2) r3c8 = r3c4;
3r6c4 - (3=9) r5c4 - (39=2) r3c4; => r3c4 = 2; stte
Leren
- Leren
- Posts: 5117
- Joined: 03 June 2012
Re: Vanhegan Fiendish February 5, 2013
by eleven » Tue Feb 05, 2013 10:45 am
(2=39)r3c46-(3=5)r148c6-(5=2)r4c8 => r3c8<>2
- eleven
- Posts: 3151
- Joined: 10 February 2008
Re: Vanhegan Fiendish February 5, 2013
by ArkieTech » Tue Feb 05, 2013 12:08 pm
same result:
- Code: Select all
*-----------------------------------------------------------*
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 |c239 6 39 | 7 3-2 4 |
|-------------------+-------------------+-------------------|
| 47 3 8 | 6 1 b45 | 9 a25 27 |
| 67 16 2 |c39 8 359 | 4 35 17 |
| 5 14 9 |c34 2 7 | 13 6 8 |
|-------------------+-------------------+-------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
*-----------------------------------------------------------*
als xy-wing
(2=5)r4c8-(5=4)r4c6-(4=2)r356c4 => -2r3c8
dan
-
ArkieTech - Posts: 3355
- Joined: 29 May 2006
- Location: NW Arkansas USA
Re: Vanhegan Fiendish February 5, 2013
by aran » Tue Feb 05, 2013 12:26 pm
- Code: Select all
*-----------------------------------------------------------*
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 | 239 6 39 | 7 23 4 |
|-------------------+-------------------+-------------------|
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|-------------------+-------------------+-------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
*-----------------------------------------------------------*
3r6c7=(3-4)r6c4=14r48c6-(1=3)r1c6-SWF3c179r129=3r6c7 : =>r6c7=3 ste
- aran
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- Joined: 02 March 2007
Re: Vanhegan Fiendish February 5, 2013
by eleven » Tue Feb 05, 2013 3:27 pm
Oh, an almost swordfish.
I dont't even spot pure swordfish. I stopped trying, when i found, that in most cases they only have weak eliminations.
But now, when i see that, you could do it with the 2's as well.
(7=2)r4c9-SW2r123c149=2r3c8-(2=39)r3c46-(3=5)r158c6-(5=7)r4c89 => r7c9=7
Ok, instead of the swordfish i could have taken 2r12c9
Btw. your chain could be finished simply this less elegant way:
3r6c7=(3-4)r6c4=14r48c6-(1=3)r1c6-r3c46=r3c8 => r2c7,r5c8<>3
However, looking for such patterns releases you from the morbid question: Where should i start ?
I dont't even spot pure swordfish. I stopped trying, when i found, that in most cases they only have weak eliminations.
But now, when i see that, you could do it with the 2's as well.
(7=2)r4c9-SW2r123c149=2r3c8-(2=39)r3c46-(3=5)r158c6-(5=7)r4c89 => r7c9=7
Ok, instead of the swordfish i could have taken 2r12c9
Btw. your chain could be finished simply this less elegant way:
3r6c7=(3-4)r6c4=14r48c6-(1=3)r1c6-r3c46=r3c8 => r2c7,r5c8<>3
However, looking for such patterns releases you from the morbid question: Where should i start ?
- eleven
- Posts: 3151
- Joined: 10 February 2008
Re: Vanhegan Fiendish February 5, 2013
by Marty R. » Tue Feb 05, 2013 7:53 pm
Two steps.
Fin Transport. X-Wing on 5, r26c79 with fin in r6c1. 5r6c1-r9c1=r8c3=>r8c7<>5
UR 35 r29c79. (2r2c9=1r2c79)-r1c9=r1c6-(1=4)r8c6-(4=5)r4c6-(5=2)r4c8=>r3c8<>2
- Code: Select all
+------------+--------------+-------------------+
| 23 9 4 | 5 7 138 | 6 238 1238 |
| 23 7 6 | 1238 4 138 | 12358 9 12358 |
| 8 5 1 | 239 6 39 | 7 23 4 |
+------------+--------------+-------------------+
| 457 3 58 | 6 1 458 | 9 2578 2578 |
| 567 168 2 | 389 58 3589 | 4 3578 13578 |
| 45 148 9 | 348 2 7 | 1358 6 1358 |
+------------+--------------+-------------------+
| 1 468 3 | 478 58 4568 | 258 24578 9 |
| 9 2 58 | 147 3 146 | 58 47 67 |
| 456 468 7 | 48 9 2 | 358 1 3568 |
+------------+--------------+-------------------+
Fin Transport. X-Wing on 5, r26c79 with fin in r6c1. 5r6c1-r9c1=r8c3=>r8c7<>5
- Code: Select all
+----------+-----------+-------------+
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 | 239 6 39 | 7 23 4 |
+----------+-----------+-------------+
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
+----------+-----------+-------------+
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
+----------+-----------+-------------+
UR 35 r29c79. (2r2c9=1r2c79)-r1c9=r1c6-(1=4)r8c6-(4=5)r4c6-(5=2)r4c8=>r3c8<>2
- Marty R.
- Posts: 1508
- Joined: 23 October 2012
- Location: Rochester, New York, USA
Re: Vanhegan Fiendish February 5, 2013
by Leren » Tue Feb 05, 2013 8:26 pm
- Code: Select all
*--------------------------------------------------------------------------------*
| 23 9 4 | 5 7 a13 | 6 8 23-1 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 |a239 6 a39 | 7 b23 4 |
|--------------------------+--------------------------+--------------------------|
| 47 3 8 | 6 1 45 | 9 c25 c27 |
| 67 16 2 | 39 8 359 | 4 c35 c17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|--------------------------+--------------------------+--------------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
*--------------------------------------------------------------------------------*
als xy-wing: (1=2) r1c6,r3c46 - (2=3) r3c8 - (3=1) r45c89 => r1c9 <> 1; stte
Leren
- Leren
- Posts: 5117
- Joined: 03 June 2012
Re: Vanhegan Fiendish February 5, 2013
by Marty R. » Tue Feb 05, 2013 9:16 pm
Marty R. wrote:Two steps.
- Code: Select all
+------------+--------------+-------------------+
| 23 9 4 | 5 7 138 | 6 238 1238 |
| 23 7 6 | 1238 4 138 | 12358 9 12358 |
| 8 5 1 | 239 6 39 | 7 23 4 |
+------------+--------------+-------------------+
| 457 3 58 | 6 1 458 | 9 2578 2578 |
| 567 168 2 | 389 58 3589 | 4 3578 13578 |
| 45 148 9 | 348 2 7 | 1358 6 1358 |
+------------+--------------+-------------------+
| 1 468 3 | 478 58 4568 | 258 24578 9 |
| 9 2 58 | 147 3 146 | 58 47 67 |
| 456 468 7 | 48 9 2 | 358 1 3568 |
+------------+--------------+-------------------+
Fin Transport. X-Wing on 5, r26c79 with fin in r6c1. 5r6c1-r9c1=r8c3=>r8c7<>5
- Code: Select all
+----------+-----------+-------------+
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 | 239 6 39 | 7 23 4 |
+----------+-----------+-------------+
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
+----------+-----------+-------------+
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | 35 1 35 |
+----------+-----------+-------------+
UR 35 r29c79. (2r2c9=1r2c79)-r1c9=r1c6-(1=4)r8c6-(4=5)r4c6-(5=2)r4c8=>r3c8<>2
From looking at the others' grids, I can see where I screwed up the basics such that only the UR was needed.
- Marty R.
- Posts: 1508
- Joined: 23 October 2012
- Location: Rochester, New York, USA
Re: Vanhegan Fiendish February 5, 2013
by Luke » Wed Feb 06, 2013 3:12 am
This grid is thick with DPs.
For efficiency: the (35) AUR.
(1)r2c79=(2)r2c9-(2=17)r45c9 ==>r1c9<>1
For nonsense: (478) MUG.
(1)r8c4=(6)r9c2-(6=1)r5c2-r5c9=(1-3)r6c7=r5c8-r3c8=r3c46-(3=1)r1c6
==>r8c6<>1
For efficiency: the (35) AUR.
- Code: Select all
*-----------------------------------------------------------*
| 23 9 4 | 5 7 13 | 6 8 -123 |
| 23 7 6 | 123 4 8 |*35+1 9 *35+12 |
| 8 5 1 | 239 6 39 | 7 23 4 |
|-------------------+-------------------+-------------------|
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|-------------------+-------------------+-------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 |*35 1 *35 |
*-----------------------------------------------------------*
(1)r2c79=(2)r2c9-(2=17)r45c9 ==>r1c9<>1
For nonsense: (478) MUG.
- Code: Select all
*-----------------------------------------------------------*
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 | 239 6 39 | 7 23 4 |
|-------------------+-------------------+-------------------|
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|-------------------+-------------------+-------------------|
| 1 *48 3 |*478 5 6 | 2 *47 9 |
| 9 2 5 |*47+1 3 -14 | 8 *47 6 |
| 46 *48+6 7 |*48 9 2 | 35 1 35 |
*-----------------------------------------------------------*
(1)r8c4=(6)r9c2-(6=1)r5c2-r5c9=(1-3)r6c7=r5c8-r3c8=r3c46-(3=1)r1c6
==>r8c6<>1
-
Luke - 2015 Supporter
- Posts: 435
- Joined: 06 August 2006
- Location: Southern Northern California
Re: Vanhegan Fiendish February 5, 2013
by daj95376 » Wed Feb 06, 2013 7:47 am
Mostly a rehash of solutions already presented.
Two-stepper:
Single-Stepper:
Or Luke451's (478) MUG: r8c4=1 or r9c2=6
Either way, r8c4=1 results.
Two-stepper:
- Code: Select all
+--------------------------------------------------------------+
| 23 9 4 | 5 7 13 | 6 8 123 |
| 23 7 6 | 123 4 8 | 135 9 1235 |
| 8 5 1 | 239 6 39 | 7 23 4 |
|--------------------+--------------------+--------------------|
| 47 3 8 | 6 1 45 | 9 25 27 |
| 67 16 2 | 39 8 359 | 4 35 17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|--------------------+--------------------+--------------------|
| 1 @48 3 | @478* 5 6 | 2 47* 9 |
| 9 2 5 | 147* 3 14 | 8 47* 6 |
| 46 @468 7 | @48 9 2 | 35 1 35 |
+--------------------------------------------------------------+
# 44 eliminations remain
r79c24 <48> UR Type 6.2223 <> 4 r7c2,r9c4
r78c48 <47> UR Type 1.2223 <> 47 r8c4
Single-Stepper:
- Code: Select all
+--------------------------------------------------------------+
| 23 9 4 | 5 7 13 | 6 8 #123 |
| 23 7 6 | 123 4 8 | *35+1 9 *35+12 |
| 8 5 1 | 239 6 39 | 7 23 4 |
|--------------------+--------------------+--------------------|
| 47 3 8 | 6 1 45 | 9 25 #27 |
| 67 16 2 | 39 8 359 | 4 35 #17 |
| 5 14 9 | 34 2 7 | 13 6 8 |
|--------------------+--------------------+--------------------|
| 1 48 3 | 478 5 6 | 2 47 9 |
| 9 2 5 | 147 3 14 | 8 47 6 |
| 46 468 7 | 48 9 2 | *35 1 *35 |
+--------------------------------------------------------------+
# 44 eliminations remain
(3=127)r145c9 - (12=UR=1)r29c79 => r1c9<>1
-or-
<35> UR r29c79: r2c79=1 or r2c9=2
(1)r2c79 => r1c9<>1
(2)r2c 9 - (2=7)r4c9 - (7=1)r5c9 => r1c9<>1
Or Luke451's (478) MUG: r8c4=1 or r9c2=6
- Code: Select all
(6)r9c2 - (6=4)r9c1 - (4=8)r7c2 - (8)r7c4 =UR= (1)r8c4
Either way, r8c4=1 results.
- daj95376
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- Joined: 15 May 2006
Re: Vanhegan Fiendish February 5, 2013
by aran » Wed Feb 06, 2013 12:55 pm
eleven wrote:However, looking for such patterns releases you from the morbid question: Where should i start ?
Par exemple !
- aran
- Posts: 334
- Joined: 02 March 2007
12 posts
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