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 Post subject: Tarek's Killer Jonin
PostPosted: Fri Mar 06, 2009 12:11 am 
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Joined: Tue Aug 05, 2008 11:43 am
Posts: 251
Hi everybody,

I am in the long process of developing a killer solver/generator ...

In my experiments, the following puzzle came out. It is very difficult as confirmed by some independent computer solvers. I thought that it would be a good idea to post here for future reference. No need to distract youselves from the good solvable puzzles posted here which would be my ultimate generating target

Tarek's Killer Jonin
Image

3x3::k:5377:5377:1282:1282:4099:4099:8964:8964:8964:5377:5377:4357:5894:3335:4099:2568:8964:8964:2825:4357:4357:5894:3335:4362:2568:2568:8964:2825:5894:5894:5894:5899:4362:4362:2572:2572:4109:1806:1806:5899:5899:5899:2831:2831:2572:4109:4109:5648:5648:5899:5649:5649:5649:2322:7187:4372:4372:5648:3349:5649:3606:3606:2322:7187:7187:4372:3863:3349:5649:3606:6168:6168:7187:7187:7187:3863:3863:1561:1561:6168:6168:
L<5<G<Z<<^^HND^A^^B>^^^H^<^^>>^N^<A<G7<>^<B<^^<M<^M<<9SH<^D^E<^^<^F^^^O<^^<^<6<^^
Code:
L<5<G<Z<<
^^HND^A^^
B>^^^H^<^
^>>^N^<A<
G7<>^<B<^
^<M<^M<<9
SH<^D^E<^
^<^F^^^O<
^^<^<6<^^

SSS=2.86 **** Uses Extended Trial and Error Steps ****

Solution:
Code:
982316457134759682576482319629138745843567921715924863291843576457691238368275194
982316457
134759682
576482319
629138745
843567921
715924863
291843576
457691238
368275194



& here are some similar nasty versions of the same pattern:

V2:
3x3::k:3585:3585:2050:2050:4611:4611:6148:6148:6148:3585:3585:5381:6918:1543:4611:5384:6148:6148:3081:5381:5381:6918:1543:3594:5384:5384:6148:3081:6918:6918:6918:6923:3594:3594:2828:2828:4877:2830:2830:6923:6923:6923:2319:2319:2828:4877:4877:2576:2576:6923:6417:6417:6417:3858:8211:3348:3348:2576:2325:6417:4118:4118:3858:8211:8211:3348:4119:2325:6417:4118:4632:4632:8211:8211:8211:4119:4119:2329:2329:4632:4632:
SSS=2.56 **** Uses Extended Trial and Error Steps ****

V3:
3x3::k:5377:5377:3586:3586:3587:3587:8708:8708:8708:5377:5377:3589:5382:1799:3587:2824:8708:8708:2569:3589:3589:5382:1799:4618:2824:2824:8708:2569:5382:5382:5382:7947:4618:4618:3596:3596:2061:3342:3342:7947:7947:7947:1807:1807:3596:2061:2061:4112:4112:7947:6417:6417:6417:2322:7955:3604:3604:4112:2581:6417:3862:3862:2322:7955:7955:3604:4375:2581:6417:3862:4888:4888:7955:7955:7955:4375:4375:3097:3097:4888:4888:
SSS=2.68 **** Uses Extended Trial and Error Steps ****

V4:
3x3::k:5377:5377:2818:2818:3075:3075:7172:7172:7172:5377:5377:4101:4614:2823:3075:4360:7172:7172:2313:4101:4101:4614:2823:4106:4360:4360:7172:2313:4614:4614:4614:6667:4106:4106:4620:4620:4877:2830:2830:6667:6667:6667:3087:3087:4620:4877:4877:2832:2832:6667:5649:5649:5649:3346:6931:4628:4628:2832:2069:5649:5142:5142:3346:6931:6931:4628:4887:2069:5649:5142:3608:3608:6931:6931:6931:4887:4887:2073:2073:3608:3608:
SSS=3.21 **** Uses Extended Trial and Error Steps ****

tarek

[Edit: Solution in hidden box, SSS added]


Last edited by tarek on Sat Mar 07, 2009 10:38 am, edited 1 time in total.

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 Post subject: Re: Tarek's Killer Jonin
PostPosted: Fri Mar 06, 2009 7:29 am 
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Joined: Mon Apr 21, 2008 9:44 am
Posts: 310
Location: MV, Germany
Just as a word of warning: All these Killers have a SudokuSolver score above 4.8 and need T&E!


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 Post subject: Re: Tarek's Killer Jonin
PostPosted: Sat Mar 07, 2009 11:46 am 
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Joined: Tue Aug 05, 2008 11:43 am
Posts: 251
Hi Afmob,

I guess I should have chosen my words more carfully (Very difficult is a relative term).

The above puzzles will force most computer solvers to go into T&E land.

I've edited the 1st post to include SSS for them. Since I've been using SSS for screening some other puzzle, I decided to post an UNSOLVABLE list based on their solver-defeating capabilities ... Thses might be considered as part of a hardest killers list suitable only for machine solvers & future technique development.

Don't attempt solving these puzzles unless you want to gauge exactly how high is your obstacle.

tarek


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