The New Sudoku Players' Forum

by ab » Wed Jul 25, 2007 10:02 pm

bit of a jump, a 6.6

Code: Select all: . . . | . . . | . . 7 . 6 4 | . . . | . 5 . 2 . . | 3 . . | 1 . . ------+-------+------ . 7 1 | . . 4 | . . . . . . | . . . | . . . . . . | 8 . . | 3 9 . ------+-------+------ . . 6 | . . 1 | . . 4 . 5 . | . . . | 8 6 . 9 . . | . . . | . . .

by **JPF** » Wed Jul 25, 2007 10:37 pm

I got these ones :

Code: Select all: *-----------* |...|...|..1| |.23|...|.4.| |5..|1..|6..| |---+---+---| |.37|..4|...| |...|...|...| |...|8..|92.| |---+---+---| |..4|..7|..3| |.6.|...|59.| |8..|...|...| *-----------* ER=5.8 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.17|..3|...| |...|...|...| |...|5..|68.| |---+---+---| |..2|..7|..3| |.4.|...|56.| |8..|...|...| *-----------* ER=6.5

JPF

by **TTHsieh** » Thu Jul 26, 2007 3:04 am

It's hard to get 5.8 (JPF) and 6.2

Code: Select all: . . . | . . . | . . 9 . 5 8 | . . . | . 4 . 7 . . | 1 . . | 3 . . - - - + - - - + - - - . 1 4 | . . 5 | . . . . . . | . . . | . . . . . . | 3 . . | 2 9 . - - - + - - - + - - - . . 9 | . . 4 | . . 7 . 3 . | . . . | 8 1 . 2 . . | . . . | . . . ER = 6.2

TTHsieh

by **ravel** » Thu Jul 26, 2007 7:59 am

Thanks for leaving me this one

Maybe a point system would be fairer - e.g. a point for each new rating.

Code: Select all: +-------------------+ | . . . . . . . . 5 | | . 3 8 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 5 4 . . 7 . . . | | . . . . . . . . . | | . . . 9 . . 1 8 . | | . . 7 . . 5 . . 4 | | . 2 . . . . 9 6 . | | 9 . . . . . . . . | +-------------------+ ER 6.7

by **TTHsieh** » Thu Jul 26, 2007 8:08 am

Code: Select all: . . . | . . . | . . 9 . 4 5 | . . . | . 1 . 8 . . | 2 . . | 3 . . - - - + - - - + - - - . 9 7 | . . 4 | . . . . . . | . . . | . . . . . . | 3 . . | 8 6 . - - - + - - - + - - - . . 9 | . . 1 | . . 7 . 5 . | . . . | 2 3 . 6 . . | . . . | . . . ER = 7.5

TTHsieh

by **JPF** » Thu Jul 26, 2007 8:57 am

ravel wrote:Maybe a point system would be fairer - e.g. a point for each new rating.

Right!
After this pattern, new rules (points, timing, etc...) will be set up.

There are lots of ratings between 6.7 and 7.5...

My new proposal, first :

Code: Select all: . . . | . . . | . . 1 . 2 3 | . . . | . 4 . 5 . . | 6 . . | 7 . . -------+-------+------- . 8 1 | . . 9 | . . . . . . | . . . | . . . . . . | 7 . . | 6 8 . -------+-------+------- . . 9 | . . 3 | . . 4 . 5 . | . . . | 8 2 . 7 . . | . . . | . . . ER=7.6

Note that Explainer uses 51 forcing chains (including 4 Turbo fish) for this one.
Not equivalent to :

Code: Select all: *-----------* |...|...|..1| |.21|...|.3.| |4..|5..|6..| |---+---+---| |.78|..2|...| |...|...|...| |...|9..|54.| |---+---+---| |..6|..9|..7| |.1.|...|42.| |3..|...|...| *-----------* ER=7.6

with a low number of chains

JPF

by **ravel** » Thu Jul 26, 2007 9:10 am

JPF wrote:There are lots of ratings between 6.7 and 7.5...

The easy ones:

Code: Select all: +-------------------+ | . . . . . . . . 5 | | . 5 9 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 9 6 . . 8 . . . | | . . . . . . . . . | | . . . 7 . . 8 1 . | | . . 7 . . 6 . . 9 | | . 8 . . . . 2 7 . | | 5 . . . . . . . . | +-------------------+ ER 7.1 +-------------------+ | . . . . . . . . 5 | | . 2 5 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 5 8 . . 9 . . . | | . . . . . . . . . | | . . . 7 . . 2 3 . | | . . 9 . . 6 . . 1 | | . 4 . . . . 7 8 . | | 7 . . . . . . . . | +-------------------+ ER 7.2 +-------------------+ | . . . . . . . . 5 | | . 6 7 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 3 8 . . 7 . . . | | . . . . . . . . . | | . . . 1 . . 2 8 . | | . . 5 . . 4 . . 7 | | . 2 . . . . 9 6 . | | 3 . . . . . . . . | +-------------------+ ER 7.3

Next ones:

Code: Select all: +-------------------+ | . . . . . . . . 5 | | . 6 7 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 3 1 . . 4 . . . | | . . . . . . . . . | | . . . 6 . . 2 8 . | | . . 4 . . 5 . . 1 | | . 2 . . . . 6 9 . | | 3 . . . . . . . . | +-------------------+ ER 7.7 +-------------------+ | . . . . . . . . 5 | | . 6 7 . . . . 4 . | | 1 . . 2 . . 3 . . | | . 5 1 . . 3 . . . | | . . . . . . . . . | | . . . 6 . . 2 8 . | | . . 9 . . 5 . . 7 | | . 4 . . . . 9 6 . | | 8 . . . . . . . . | +-------------------+ ER 7.8

by **JPF** » Thu Jul 26, 2007 9:59 am

ravel wrote:
JPF wrote:There are lots of ratings between 6.7 and 7.5...
The easy ones...

less easy:

Code: Select all: *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.17|..3|...| |...|...|...| |...|8..|65.| |---+---+---| |..1|..7|..3| |.9.|...|86.| |8..|...|...| *-----------* ER=6.8 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.41|..8|...| |...|...|...| |...|7..|56.| |---+---+---| |..9|..3|..4| |.7.|...|29.| |6..|...|...| *-----------* ER=6.9 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.18|..2|...| |...|...|...| |...|9..|65.| |---+---+---| |..7|..3|..8| |.4.|...|57.| |1..|...|...| *-----------* ER=7.0

JPF

by **JPF** » Thu Jul 26, 2007 10:38 am

My proposal :

Code: Select all: . . . | . . . | . . 1 . 1 2 | . . . | . 3 . 4 . . | 5 . . | 6 . . -------+-------+------- . 2 7 | . . 3 | . . . . . . | . . . | . . . . . . | 4 . . | 5 6 . -------+-------+------- . . 3 | . . 2 | . . 7 . 8 . | . . . | 4 5 . 6 . . | . . . | . . . ER=7.9

Explainer uses 11 forcing chains, 9 of them are Nishio forcing chains

JPF

by **TTHsieh** » Thu Jul 26, 2007 12:41 pm

My new post.

Code: Select all: . . . | . . . | . . 9 . 4 6 | . . . | . 1 . 8 . . | 3 . . | 6 . . - - - + - - - + - - - . 1 9 | . . 4 | . . . . . . | . . . | . . . . . . | 8 . . | 5 7 . - - - + - - - + - - - . . 4 | . . 1 | . . 6 . 3 . | . . . | 8 2 . 5 . . | . . . | . . . ER = 9.1

and fill in the gap.

Code: Select all: . . . | . . . | . . 9 . 4 7 | . . . | . 2 . 5 . . | 8 . . | 3 . . - - - + - - - + - - - . 1 9 | . . 5 | . . . . . . | . . . | . . . . . . | 3 . . | 8 6 . - - - + - - - + - - - . . 2 | . . 7 | . . 1 . 3 . | . . . | 6 4 . 6 . . | . . . | . . . ER = 7.4

TTHsieh

by **JPF** » Thu Jul 26, 2007 7:06 pm

TTHsieh wrote:My new post.
Code: Select all
ER = 9.1

a big jump and a big gap

Here are the missing values except 8.0 and 8.1 :

Code: Select all: *-----------* |...|...|..1| |.12|...|.3.| |4..|5..|6..| |---+---+---| |.27|..3|...| |...|...|...| |...|4..|56.| |---+---+---| |..3|..2|..7| |.8.|...|45.| |6..|...|...| *-----------* ER=7.9 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.18|..4|...| |...|...|...| |...|2..|67.| |---+---+---| |..1|..8|..4| |.6.|...|92.| |7..|...|...| *-----------* ER=8.2 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.81|..9|...| |...|...|...| |...|7..|68.| |---+---+---| |..4|..3|..9| |.5.|...|82.| |7..|...|...| *-----------* ER=8.3 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.81|..9|...| |...|...|...| |...|2..|65.| |---+---+---| |..9|..4|..8| |.7.|...|23.| |3..|...|...| *-----------* ER=8.4 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.78|..1|...| |...|...|...| |...|7..|93.| |---+---+---| |..1|..3|..4| |.6.|...|52.| |9..|...|...| *-----------* ER=8.5 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.78|..1|...| |...|...|...| |...|4..|69.| |---+---+---| |..1|..8|..4| |.5.|...|92.| |7..|...|...| *-----------* ER=8.6 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.18|..2|...| |...|...|...| |...|7..|69.| |---+---+---| |..5|..3|..2| |.9.|...|51.| |7..|...|...| *-----------* ER=8.7 *-----------* |...|...|..1| |.12|...|.3.| |3..|4..|5..| |---+---+---| |.61|..3|...| |...|...|...| |...|5..|74.| |---+---+---| |..6|..2|..3| |.5.|...|48.| |7..|...|...| *-----------* ER=8.8 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.89|..3|...| |...|...|...| |...|2..|65.| |---+---+---| |..1|..9|..8| |.7.|...|42.| |4..|...|...| *-----------* ER=8.9 *-----------* |...|...|..1| |.23|...|.4.| |5..|6..|7..| |---+---+---| |.45|..3|...| |...|...|...| |...|7..|68.| |---+---+---| |..1|..5|..4| |.3.|...|82.| |7..|...|...| *-----------* ER=9.0

JPF

by **TTHsieh** » Thu Jul 26, 2007 11:07 pm

to fill in the gap.

Code: Select all: . . . | . . . | . . 9 . 4 7 | . . . | . 5 . 6 . . | 2 . . | 3 . . - - - + - - - + - - - . 9 4 | . . 7 | . . . . . . | . . . | . . . . . . | 3 . . | 8 2 . - - - + - - - + - - - . . 9 | . . 5 | . . 4 . 3 . | . . . | 2 7 . 8 . . | . . . | . . . ER = 8.0

TTHsieh

by **TTHsieh** » Thu Aug 02, 2007 8:06 am

in my experience, ERs of the previous pattern: 3.8, 5.8, 6.2, 8.0, 8.7, 9.1 are very hard to get.

pattern with big diamond wrote:

my proposal for next challenge.

Code: Select all: 1 . . | . 2 . | . . 4 . . . | 6 . 1 | . . . . . 4 | . . . | 5 . . - - - + - - - + - - - . 3 . | . . . | . 6 . 6 . . | . . . | . . 8 . 2 . | . . . | . 9 . - - - + - - - + - - - . . 9 | . . . | 4 . . . . . | 2 . 3 | . . . 7 . . | . 8 . | . . 2 ER = 1.2

TTHsieh

by **ravel** » Thu Aug 02, 2007 11:01 am

Congratulations TTHsieh,

you have found much more than me. I am off (my computer) for some time, so i cannot join in now. Also i am awaiting JPF's new rules.

by **JPF** » Thu Aug 02, 2007 10:08 pm

Yes, congratualtions TTHsieh for your puzzles.

I think the rules should be changed a bit in order to :

enable more players to participate.
explore all the different SE ratings of a pattern

As far as the tempo is concerned, we need to keep in mind that when some people work, others sleep.

Proposal :
Each posted puzzle must have a new ER and has to be minimal.
First post (dealer) = singles
other post = 2 puzzles max, say for 2 days, except if an other player posts a puzzle.

The game ends if no puzzle has been posted for 1 week.

Points : when a puzzle is posted the player gets points = # posted puzzle.
i.e : the dealer gets 1 pt, next puzzle 2 pt, etc...
At the end of the game a 10 pts bonus is given to the higher SE rating.

Any comments are welcome.

The new rules will only be used after the actual TTHsieh proposed pattern.

JPF

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