The New Sudoku Players' Forum

[JPF]

Code: Select all

+-------+-------+-------+
| . 1 2 | . 3 4 | 5 . . |
| 5 . 4 | 6 . . | . . . |
| 6 3 . | 1 . . | 2 . . |
+-------+-------+-------+
| . 5 6 | . 2 . | . . . |
| 1 . . | 4 6 . | . 5 2 |
| 4 . . | . . 3 | . . . |
+-------+-------+-------+
| 3 . 1 | . . . | . . . |
| . . . | . 4 . | . . 7 |
| . . . | . 1 . | . 8 9 |
+-------+-------+-------+   ED=11.7/1.2/1.2


JPF

[coloin]

Well done !!!

[coloin]

Here is another one to amuse ....

Code: Select all

+---+---+---+
|...|1..|...|
|.98|...|...|
|.65|...|.7.|
+---+---+---+
|5..|.12|.4.|
|...|34.|58.|
|...|5.6|9..|
+---+---+---+
|...|.61|.54|
|..2|83.|1.7|
|...|...|23.|
+---+---+---+  ED=1.5/1.2/1.2


[JPF]

Code: Select all

+-------+-------+-------+
| . . . | 1 . . | . . . |
| . 2 3 | . . . | . . . |
| . 4 5 | . . . | . 6 . |
+-------+-------+-------+
| 7 . . | . 1 8 | . 9 . |
| . . . | 5 7 . | 6 1 . |
| . . . | 6 . 9 | 8 . . |
+-------+-------+-------+
| . . . | . 5 6 | . 7 9 |
| . . 7 | 9 8 . | 1 . 6 |
| . . . | . . . | 5 8 . |
+-------+-------+-------+   ED=11.7/1.2/1.2


JPF

[coloin]

Wow... well done again ! that was quick, you must have perfected the method !!!
maybe there are higher ratings in some of the patterns games
patterns game 269 - although I dont have a puzzle ....maybe this can be improved on...

Code: Select all

+---+---+---+
|1..|2..|...|
|.3.|..4|...|
|..2|.5.|6..|
+---+---+---+
|4..|...|5..|
|..7|.8.|..6|
|.9.|..1|.7.|
+---+---+---+
|..3|7..|2.5|
|...|..5|.93|
|...|.3.|76.|
+---+---+---+  ED=11.1/11.1/10.7

[JPF]

I would be quite surprised if the prestigious group of experts* playing in the game 269 has overlooked a puzzle with a higher rating.

JPF

* Pat, Mike, champagne,dobrichev

[m_b_metcalf]

Right, proposing old PG patterns is flogging a dead horse. So, try this for size:

Code: Select all

 1 . . . . . . . 2
 . 3 . . . 1 . 4 .
 . . 5 . . . 6 . .
 . . . . 7 8 . 1 .
 . . . 4 . 9 . . .
 . 7 . 5 3 . . . .
 4 . . . . . 3 . .
 . 8 . 6 . . . 7 .
 . . 2 . . . . . 4   ED=1.5/1.2/1.2

Mike

[JPF]

Is this a pattern that has already been played?

JPF

[m_b_metcalf]

Is this a pattern that has already been played?

Sorry, yes, upon rechecking I find that it's an isomorph of PG 299.

Mike

[coloin]

I dont think the pattern of 25 clues in game 269 was/can be exhaustively checked .... and as i understand it it was efficient and desirable to search for puzzles with all different clues in a band.
These recently found 11.7 puzzles are very removed and have an extreme clue distribution.
The good thing is that it probably is possible to do an exhaustive ckeck on the pattern with 2 boxes with 6 and 3 clues already chosen - and 3 less options for each clue in the the remaining 7 boxes.
As an observation- its rare that a puzzle with the Thors hammer SE uplift has less than 25 clues .... and they all seem to complete initially with singles to 30+ clues.
The two 11.7s were found from an extended expansion of 11.7s posted on the hardest thread. There may well be many more symmetrical 11.6s and 11.5s.

[coloin]

Code: Select all

+---+---+---+
|1.2|...|...|
|.34|...|1.2|
|567|...|...|
+---+---+---+
|...|...|.91|
|...|..9|42.|
|...|.74|5.8|
+---+---+---+
|.8.|.31|9..|
|...|56.|...|
|.4.|8.7|..5|
+---+---+---+   ED=1.5/1,2/1.2


There are 4 11.7 puzzles with this pattern - but im thinking they wont be very difficult to find ....

[m_b_metcalf]

There may well be many more symmetrical 11.6s and 11.5s.

Maybe, but towards the end of the Patterns Game I put many minimal 11.6+ puzzles from the hardest thread through my program that tries to find a symmetry within a given pattern, and the yield was very, very small.

I looked, too, in Tarek_Pearly6000 and found this pattern which goes very high:

Code: Select all

 1 . . . . . . . 2
 . 3 . . . 4 . 5 .
 . . 2 . . . 6 . .
 . . . 3 . 7 . 4 .
 . . . . 6 5 . . .
 . 1 . 4 2 . . . .
 . . 6 . . . 8 . .
 . 5 . 1 . . . 3 .
 2 . . . . . . . 7   ED=1.5/1.2/1.2

How high???

Mike

[coloin]

Code: Select all

+---+---+---+
|1..|...|..2|
|.3.|..4|.5.|
|..7|...|6..|
+---+---+---+
|...|3.8|.4.|
|...|.65|...|
|.8.|49.|...|
+---+---+---+
|..6|...|1..|
|.5.|8..|.9.|
|2..|...|..7|
+---+---+---+  ED=11.3/11.3/11.1

[m_b_metcalf]

Code: Select all

 ED=11.3/11.3/11.1

A very good start!

[JPF]

In Tarek's list there are 30 puzzles with that e.d-pattern:

Code: Select all

6.......8.3...7.4...9...1.....3.2.7.....14....2.75......1...6...4.2...5.8.......9   ED=11.3/11.3/11.1
7.......1.8...3.9...6...2.....3.8.5.....15....3.49......2...7...4.9...8.1.......6   ED=10.8/10.8/10.8
5.......8.4...3.6...7...1.....2.8.9.....14....2.96......1...7...6.4...3.8.......5   ED=10.8/10.8/10.4
4.......7.9...5.1...2...6.....1.3.8.....28....8.79......6...2...1.9...5.7.......4   ED=10.6/10.6/9.6
5.......7.3...1.4...9...8.....6.3.2.....25....2.84......8...5...1.4...3.7.......9   ED=10.6/10.6/9.6
7.......2.4...9.8...3...5.....1.4.6.....58....1.29......5...3...9.8...4.2.......7   ED=10.6/10.6/10.4
1.......9.3...4.7...6...2.....3.5.8.....17....5.94......2...6...4.7...3.9.......1   ED=10.5/10.5/9.9
9.......6.5...2.7...8...4.....1.7.3.....54....1.36......4...8...7.5...2.6.......9   ED=10.5/10.5/10.4
4.......9.8...7.3...1...6.....8.5.2.....26....3.79......6...4...5.2...8.9.......1   ED=10.5/10.5/10.4
4.......9.2...3.8...1...5.....2.8.7.....65....3.79......5...4...6.8...2.9.......1   ED=10.5/10.5/10.4
4.......2.6...3.9...5...1.....5.7.8.....49....7.86......1...5...3.9...6.2.......4   ED=10.5/10.5/10.4
8.......5.3...6.2...1...7.....6.3.4.....79....9.82......7...1...2.3...6.5.......8   ED=10.5/10.5/10.3
6.......2.8...5.7...1...9.....4.8.3.....27....4.15......9...1...5.7...8.2.......6   ED=10.5/10.5/10.3
6.......3.9...4.5...1...8.....4.7.2.....89....7.65......8...1...5.9...4.3.......6   ED=10.5/10.5/10.3
6.......3.1...2.8...9...4.....2.5.7.....91....5.68......4...9...8.1...2.3.......6   ED=10.4/10.4/10.4
7.......1.5...8.3...2...6.....8.7.9.....25....8.93......6...7...9.4...5.1.......2   ED=10.4/10.4/10.4
4.......1.7...5.8...2...6.....8.9.3.....17....9.45......6...2...8.7...5.1.......4   ED=10.4/10.4/10.4
5.......8.6...3.7...9...1.....5.7.2.....84....4.32......1...9...7.6...3.8.......5   ED=10.4/10.4/10.4
4.......9.6...8.7...1...2.....1.7.3.....86....8.54......2...4...5.7...6.9.......1   ED=10.4/10.4/10.1
3.......4.1...2.6...5...8.....5.6.7.....19....9.23......8...3...2.6...1.4.......5   ED=10.4/10.4/10.1
3.......4.1...2.6...5...8.....5.6.9.....71....7.23......8...3...2.6...1.4.......5   ED=10.4/10.4/10.1
5.......2.6...3.4...1...9.....4.8.7.....16....3.57......2...1...7.8...3.9.......5   ED=10.1/10.1/9.9
3.......7.8...4.1...6...2.....9.8.5.....65....5.31......2...6...1.8...4.7.......3   ED=10.1/10.1/9.6
7.......6.2...8.5...3...1.....5.4.9.....32....4.79......6...3...5.4...8.1.......7   ED=10.1/10.1/10.1
2.......6.7...5.8...9...1.....5.1.4.....27....3.98......1...9...8.7...5.6.......2   ED=10.1/10.1/10.1
1.......2.8...9.5...7...4.....5.1.6.....76....5.28......4...7...6.3...8.2.......1   ED=10.0/9.9/9.5
4.......3.7...9.6...8...5.....9.3.2.....82....2.17......5...8...9.6...7.3.......4   ED=10.0/10.0/9.6
7.......4.5...2.3...9...1.....1.5.8.....86....8.72......1...9...2.3...5.4.......7   ED=9.7/9.7/7.2
8.......5.1...9.2...7...3.....5.6.4.....42....4.79......3...7...2.1...9.5.......8   ED=9.7/9.7/7.2
3.......1.8...5.2...4...9.....5.3.7.....97....7.62......9...4...2.8...5.1.......3   ED=9.6/9.6/9.6


Code: Select all

+-------+-------+-------+
| 1 . . | . . . | . . 2 |
| . 3 . | . . 4 | . 5 . |
| . . 6 | . . . | 7 . . |
+-------+-------+-------+
| . . . | 5 . 8 | . 4 . |
| . . . | . 1 3 | . . . |
| . 5 . | 4 9 . | . . . |
+-------+-------+-------+
| . . 7 | . . . | 6 . . |
| . 9 . | 8 . . | . 3 . |
| 2 . . | . . . | . . 1 | 
+-------+-------+-------+  ED=11.4/11.4/3.4


JPF