SudokuSolver Forum

A forum for Sudoku enthusiasts to share puzzles, techniques and software
It is currently Fri Dec 15, 2017 5:33 pm

All times are UTC




Post new topic Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Sat Mar 07, 2009 10:22 am 
Offline
Grand Master
Grand Master
User avatar

Joined: Tue Aug 05, 2008 11:43 am
Posts: 233
After downloading SS321, I managed to score several of my generated puzzles. I have compiled a Solver-defeating list which can be (for the time being) part of the hardest, impossible or unsolvable sudokus. This list is likely to grow. The 1st 30+ puzzles are either too long to solve or unsolvable by SS321/JSudoku .... So approach with care :whistle:

I will post them in the 81-chracter format which JSudoku has implented (Thanks again JC). Some of them are paterrn based, so you may find several puzzle with the same cage patterns.

Code:
G<<L<K<L<^G>^>^E^^>^IJ<G^<G^>^^I^<>^HC<C^<B^N^^G^<>^>^^E^<DF<^PG^<>^^J<^^<H<<>^>^
G<<M<L<M<^O>^>^C^^>^FF<G^<C^>^^H^<>^FE<E^<C^M^^H^<>^>^^E^<FH<^MH^<>^^L<^^<D<<>^>^
G<<N<J<H<^O>^>^K^^>^GI<A^<L^>^^E^<>^FF<E^<C^I^^E^<>^>^^C^<GH<^QF^<>^^E<^^<J<<>^>^
G<<P<N<H<^N>^>^E^^>^GH<B^<K^>^^I^<>^IC<G^<C^L^^A^<>^>^^C^<EK<^KJ^<>^^I<^^<D<<>^>^
L<<H<N<L<^L>^>^D^^>^BJ<I^<I^>^^G^<>^FF<F^<C^H^^I^<>^>^^I^<FE<^MD^<>^^H<^^<G<<>^>^
L<<Q<J<G<^N>^>^J^^>^C8<H^<F^>^^I^<>^FC<D^<I^L^^H^<>^>^^E^<AG<^PG^<>^^I<^^<G<<>^>^
M<<L<O<F<^J>^>^H^^>^KE<C^<M^>^^I^<>^CC<C^<E^K^^I^<>^>^^E^<FA<^OH^<>^^J<^^<E<<>^>^
N<<K<H<I<^I>^>^J^^>^CL<C^<L^>^^G^<>^9H<G^<C^J^^I^<>^>^^G^<IF<^LK^<>^^K<^^<7<<>^>^
A<H<MA<A<^P<<^N<<^E^E<^L<^E^^^^^^^^^M<<9<K<<<G^N<^F<SB^<^^L^^^^I<E>^>>^D^^^<^F<>^
E<8<ID<E<^N<<^L<<^A^Q<^K<^D^^^^^^^^^L<<G<I<<<K^C<^O<FB^<^^N^^^^M<C>^>>^K^^^<^B<>^
F<9<IF<K<^L<<^I<<^C^N<^N<^6^^^^^^^^^H<<I<I<<<9^K<^O<OA^<^^L^^^^R<F>^>>^G^^^<^6<>^
F<B<HB<K<^U<<^I<<^C^E<^I<^E^^^^^^^^^H<<G<M<<<C^R<^O<L6^<^^O^^^^K<A>^>>^F^^^<^B<>^
C<5<KD<I<^O<<^P<<^F^R<^C<^9^^^^^^^^^K<<H<I<<<A^X<^Q<IB^>^^I^^^^I<^>^>>^J^^6<^B<>^
C<9<L8<I<^P<<^L<<^C^J<^L<^E^^^^^^^^^N<<H<H<<<7^S<^J<PC^>^^G^^^^Q<^>^>>^G^^A<^9<>^
C<A<O7<G<^K<<^R<<^C^O<^G<^C^^^^^^^^^P<<B<M<<<B^V<^N<M8^>^^J^^^^J<^>^>>^F^^7<^C<>^
D<6<KH<C<^Q<<^P<<^E^M<^G<^9^^^^^^^^^H<<E<J<<<7^U<^Q<V8^>^^N^^^^K<^>^>>^C^^D<^5<>^
E<8<KF<F<^T<<^J<<^6^O<^F<^F^^^^^^^^^D<<E<R<<<A^W<^J<P9^>^^N^^^^N<^>^>>^E^^9<^7<>^
E<D<KA<H<^J<<^O<<^E^I<^J<^C^^^^^^^^^F<<K<M<<<B^X<^I<R9^>^^I^^^^K<^>^>>^F^^A<^7<>^
G<A<G6<M<^S<<^L<<^7^Q<^L<^7^^^^^^^^^J<<E<M<<<9^S<^J<T7^>^^J^^^^O<^>^>>^E^^9<^C<>^
I<A<E9<H<^Q<<^U<<^9^H<^F<^F^^^^^^^^^L<<I<G<<<9^S<^I<WC^>^^M^^^^O<^>^>>^9^^9<^7<>^
J<B<G9<G<^R<<^H<<^6^J<^R<^D^^^^^^^^^G<<E<O<<<9^T<^J<L9^>^^O^^^^N<^>^>>^F^^C<^A<>^
B<7<JF<B<^T<<^V<<^A^L<^R<^8^^^^^^^^^G<<M0^C<<AS>^OF<SB^^^^^^^^^H^<<^>>^E^<9<^8<>^
D<5<JE<H<^S<<^L<<^A^J<^M<^D^^^^^^^^^H<<N0^C<<CS>^KN<QD^^^^^^^^^9^<<^>>^A^<G<^9<>^
D<C<OF<C<^K<<^R<<^7^P<^N<^A^^^^^^^^^C<<N0^C<<DV>^EI<NF^^^^^^^^^E^<<^>>^I^<A<^7<>^
D<D<IB<9<^N<<^R<<^D^K<^S<^D^^^^^^^^^E<<N0^C<<6R>^KN<MD^^^^^^^^^F^<<^>>^G^<D<^6<>^
H<B<J8<C<^K<<^U<<^7^K<^Q<^G^^^^^^^^^K<<N0^C<<6P>^OM<PB^^^^^^^^^M^<<^>>^9^<9<^9<>^
D<A<GD<I<^S<<^H<<^B^P<^D<^B^^^^^^^F^E<N<<<<^<7^O<KO<NB^F^^^^^^^G^<<^>>^F^<D<^A<>^
D<A<MC<D<^N<<^M<<^A^N<^F<^E^^^^^^^C^G<N<<<<^<7^K<MR<LA^F^^^^^^^L^<<^>>^E^<B<^9<>^
G<9<M9<I<^T<<^J<<^A^G<^G<^9^^^^^^^E^E<T<<<<^<A^M<JK<OD^H^^^^^^^G^<<^>>^E^<9<^B<>^
K<B<GA<A<^Q<<^M<<^8^G<^L<^B^^^^^^^G^E<P<<<<^<7^K<PO<I8^M^^^^^^^E^<<^>>^K^<A<^B<>^
C<C<9C<I<^J<<^O<<^B^R<^Y<^A^^^^>^^^^P<<C<^9<<B^R<^M<QB^>^^L^^^^K<^>^>>^F^^A<^8<>^
C<5<ED<H<^R<<^K<<^C^N<^J<^8^^^^P^^N^I<<>^<>^<B^O<^F<Q9^G^^F^^^^E^<<^>>^I^<D<^8<>^
D<B<EE<B<^R<<^G<<^B^G<^J<^H^^^^P^^I^N<<>^<>^<B^J<^M<R8^I^^D^^^^H^<<^>>^D^<B<^B<>^
E<9<D9<K<^P<<^G<<^C^K<^N<^9^^^^K^^P^K<<>^<>^<7^O<^L<K8^K^^I^^^^E^<<^>>^F^<E<^9<>^
H<A<DE<B<^P<<^N<<^A^L<^F<^B^^^^J^^K^P<<>^<>^<9^L<^L<VC^F^^I^^^^C^<<^>>^F^<E<^3<>^
RJJDEPGD<H```````^F````D```D``````9`L````HE``L`L`SJ```C```I````A``B`````^<```````
ORH9GOCG<I```````^I````N```8``````9`I````DA``K`O`OL```C```L````I``3`````^<```````
KNLDDMBC<M```````^J````L```A``````F`I````JF``D`I`IP```E```D````I``C`````^<```````
QQH7IGID<H```````^N````O```8``````8`F````LG``M`S`IG```E```D````D``8`````^<```````
H<S<<K<<LO^<<^<^>^^<R<<<Y^F^O^V>>^^^>^K^<<^>^^P^<<^S^M^^^>>>^>^>^IM<T<<^^>^<^<<^<
S<J<<O<<KJ^<<^<^>^^<N<<<J^Q^S^O>>^^^>^W^<<^>^^O^<<^T^J^^^>>>^>^>^ML<S<<^^>^<^<<^<
M<S<<H<<OM^<<^<^>^^<O<<<N^R^K^X>>^^^>^I^<<^>^^P^<<^I^N^^^>>>^>^>^RU<O<<^^>^<^<<^<


tarek


Last edited by tarek on Tue Mar 10, 2009 4:57 pm, edited 1 time in total.

Top
 Profile  
Reply with quote  
PostPosted: Mon Mar 09, 2009 1:39 am 
Offline
Grand Master
Grand Master
User avatar

Joined: Tue Aug 05, 2008 11:43 am
Posts: 233
I'm not sure how to compare these puzzles to decide which is hardest. If solving time is a factor then the following should be near the top (For the moment at least)
Unsolvable #41
Image

Code:
S<J<<O<<KJ^<<^<^>^^<N<<<J^Q^S^O>>^^^>^W^<<^>^^O^<<^T^J^^^>>>^>^>^ML<S<<^^>^<^<<^<

3x3::k:7168:7168:4866:4866:4866:6149:6149:6149:5128:4873:7168:7168:7168:4866:4866:6149:5128:5128:4873:4873:5908:5908:5908:5908:4888:5128:6682:4873:7196:5908:6174:4888:4888:4888:5128:6682:7196:7196:8230:6174:6174:6174:4888:6682:6682:7196:6190:8230:8230:8230:6174:7475:6682:4917:7196:6190:8230:7475:7475:7475:7475:4917:4917:6190:6190:5697:5442:5442:7236:7236:7236:4917:6190:5697:5697:5697:5442:5442:5442:7236:7236:

Solution:
+-------+-------+-------+
| 2 8 3 | 1 9 7 | 5 4 6 |
| 9 6 7 | 5 4 2 | 8 1 3 |
| 4 1 5 | 3 6 8 | 7 2 9 |
+-------+-------+-------+
| 5 9 1 | 7 2 6 | 3 8 4 |
| 8 7 6 | 4 3 9 | 1 5 2 |
| 3 2 4 | 8 5 1 | 9 6 7 |
+-------+-------+-------+
| 1 4 9 | 2 7 5 | 6 3 8 |
| 7 5 2 | 6 8 3 | 4 9 1 |
| 6 3 8 | 9 1 4 | 2 7 5 |
+-------+-------+-------+
Thanks ixsetf!


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group