The New Sudoku Players' Forum

by **999_Springs** » Mon Oct 27, 2008 9:40 am

Code: Select all: 6....245952..4..1...35..2..3..1945...1.658.34..5273..1..4..51...3..2..4575.4....8

39 clues, ER 9.2

Code: Select all: 6....245952..4..1..435..2..3..1945...1.658.344.5273..1..4..51...3..2..4575.4....8

41 clues, ER 8.9

Code: Select all: 6....245952..4..1..435..2..3..1945.221.658.344.5273..1..4..512..3..2..457524....8

45 clues, ER 8.3

by **999_Springs** » Thu Oct 30, 2008 7:51 am

Code: Select all: 219|356|784 843|..7|659 657|498|2.. ---+---+--- 198|74.|5.6 432|561|978 765|8.9|.4. ---+---+--- 976|.85|4.. 321|974|865 584|6..|.97 ER=2.6, 66 clues

This was found manually (I don't have any sort of computer programming knowledge whatsoever) and took me 1.5 hours.

Eioru, in your collaboration of ratings you missed the 7.0 puzzle on page 4:

Code: Select all: .13|4.7|825 ..4|8.2|631 28.|1.3|947 ---+---+--- ...|.24|318 342|918|756 8.1|.36|294 ---+---+--- 429|671|583 .38|245|1.9 1..|389|4.2 ER=7.0, 63 clues

by **Eioru** » Fri Nov 21, 2008 5:30 pm

Currently Result
Improve 3.4 5.8 7.5 8.3
rating |clues
-------+-------------
1.0 | 80 |
1.2 | 77 |
1.5 | 65 | 3.51482.9.18293.4.94256738142635189718762945359387461225.786.3..3.415.288..932...
1.7 | 56 | 568.4.132791283645423165...614...52.2.5.14..69.752641.1764.2.5..596.12.4.42.5..61
2.0 | 69 | 437691825268537941159842763892..5.3.615..3.8.743..8.5.326789514574316298981254376
2.3 | 62 | 327415698159862347684...25194.....7571.....2353.....69893..4716475186932261937584
2.5 | 57 | ...4..185..41..937..1...642...7..451.1..4.273.4.231869459617328182354796376928514
2.6 | 66 | 219356784843..76596574982..19874.5.64325619787658.9.4.976.854..3219748655846...97
2.8 | 57 | ..4.5678969.7.8.4557849.6..45.9378.68.9264.57.6758149..4..795689.68.5.7478564.9..
3.0 | 58 | 3517426894961832577826593411453....6967...53.2385....4513......82493...56798.54.3
3.2 | 63 | 18.2.79.5.59..1827.72589.1.7186245932649531789357182..89.1.57.2521.76.89.47892.51
3.4 | 58 | ..2...4131...2.689...1..257.1927.36572....891....91724985742136237916548641385972
3.6 | 54 | ......387....7.659.798.3421..5.3.946.6....735.....5812257389164498516273316247598
3.8 | 56 | 415.69.8767.85.4.9.894.7.6595.64287.8.7.956.4.647.895..9.5847.67.89.654.546.7..98
4.0 |
4.2 | 70 | 96173254884395672172581463919467385268752.3.4352..8.67419385276238.67..55762...83
4.4 | 66 | 3495812676283975145714629384537296817861..492912.4.753165..4..92379...46894.....5
4.5 | 62 | 239514678.54...213.61...59412736548969874135254392816748....73.972...84.31.48792.
4.6 | 60 | 421378965587629..1396..4872264.831.717..62.8383....2.67428..6.9618....24953246718
4.69 | 42 | ....291.....6189..196.458.24.15..29.5...8.4.7.6...45.3..84..6296....73..9.486.751
4.7 |
4.8 | 48 | 1.345.7...4..21...6.97831.4...3.8...234.7.518...2.5...875192436391.64.7.462.379.1
4.89 | 38 | 6.7381.....1.2.3...4395761....7.8....7916584....2.37...64.3219...8.195......7....
4.9 | 36 | 1.2.3.4.5.73..58..485691..7..8.1.7..7...8...6..1...98.8..9.2..3.........3.71645.8
5.0 |
5.1 | 46 | ...1237..7..465.....3..76.4476.12.353.15.647225.734.61..76415.....258..7...379..6
5.2 | 58 | 4.5.67.8967..894.589.4.567.568942..77245..8969..678542157.94.68.498.675..8675.9.4
5.4 | 46 | 63214597881..9...4.4..8..1....85....16.274......96....481529.6.753416..9296738.4.
5.6 | 70 | 12345678945678912378913256423.9.58.66.52.893.8973612453625174985.86943.29..82365.
5.7 | 64 | 738421695692...418451...732314782569826...347975...8212479531861832..954569...273
5.8 | 60 | ...647981.1.2836577865913246423581795...29846..8.645328..4.2765.6.9.5218...8.6493
5.9 | 56 | 974...123612347589835..9674.6......8.4..9.2.5.2...1..7751964832293..8456486532791
6.0 | 55 | .54672.1.617.985.29..5...765.928..67...75.....7.....58463825791781934625295167384
6.1 | 60 | 528...341931524786476381592.19...85..64...17..53...62.195438267382976415647...938
6.2 | 64 | 259641738743985126681372..4896513247537264...412897...92473....37815.4.216542..7.
6.5 | 58 | ..4.5678969.7.8.4557849.6.245.9.78.68.9.64.57.6758.49114..795689.68.5.7478564.9.3
6.6 | 66 | 453219786628735491197846325379..2..8215.879.3864..32.7732..18.4981.74.32546328179
6.69 | 46 | .531..8.6.81569.3.26.....51.964.1.7..7.....1.14.375.6.62....185.352186.7817.5.32.
6.7 | 64 | 12.689.7586.735..175.142...385274169942561738671398.5.438926517596417...217853...
6.8 | 62 | 6..1..38..3.5.8.1..183...9.8..613472421875936367924158146789523273451869.8.236741
6.9 | 65 | ..2.4.658....6.42346.25.971.4.532769926487135...619284685124397319876542274395816
7.0 | 63 | .134.7825..48.263128.1.3947....243183429187568.1.36294429671583.382451.91..3894.2
7.1 | 65 | 642319578187...439359...261914283657276...8935389..142721495386493...715865.3.924
7.2 | 66 | .6..92.84..4.16.35....54.96126935478759428361843167952...243617632571849417689523
7.3 | 61 | 371542986682...345459...217914376528768...13.523...76.135984672247...893896...451
7.4 | 36 | 57.3.1.6893.7.8.54.........79.....45.........86.....326.7......42.6.7.8131.2.5.76
7.5 | 52 | ......217....5.8348..3..659..8...57127....946......382582941763746523198931786425
7.6 | 57 | .45.67.896.78.94.589.45.67.4..57.896.69..8547578946123.5479..6878.6.495.9.6.857.4
7.7 | 57 | 4.5.67.8967..894.589.4.567.568.94..77.45..8969..67854.15794..682498.675.38675.9.4
8.3 | 57 | ....472969...8.4574..5.9831..4...789.9...8164....94523549876312638412975721935648
8.9 | 41 | 6....245952..4..1..435..2..3..1945...1.658.344.5273..1..4..51...3..2..4575.4....8
9.2 | 39 | 6....245952..4..1...35..2..3..1945...1.658.34..5273..1..4..51...3..2..4575.4....8
11.2 | 37 | 6....2.5952..4..1...35..2..3..1945...1.658.3...5273..1..4..51...3..2..4575.4....8

by **Eioru** » Fri Dec 12, 2008 5:04 pm

999_Springs wrote:[edit: Oh dear. Your 7.7 puzzle is so hard that it froze SE on my computer for 4 minutes!]

How about this one

Code: Select all: 2.4|56.|789 .69|.78|.45 578|.49|3.6 ---+---+--- 6..|.54|897 79.|68.|5.4 485|9.7|.6. ---+---+--- 8.6|79.|45. .57|4.6|9.8 94.|8.5|67.

by **tarek** » Fri Dec 12, 2008 10:25 pm

The following puzzles have been solved up until the start of non-single moves

Code: Select all: . . 8|. 6 2|. . 5 . 2 .|8 5 .|. 6 . 6 . 5|7 9 1|8 . 2 -----+-----+----- . . 6|2 . 8|. 5 1 8 5 .|. 1 6|. 2 . 3 1 2|9 . 5|6 8 . -----+-----+----- 5 6 .|1 . 9|2 . 8 . 8 .|5 2 .|. 1 6 2 . 1|6 8 .|5 . . ER=7.9 48 clues . . 9|. 5 2|. . 3 . 2 .|9 3 .|. 5 . 5 . 3|6 7 .|9 . 2 -----+-----+----- . . 5|2 . 9|. 3 4 9 3 .|. 4 5|. 2 . 1 4 2|7 . 3|5 9 . -----+-----+----- . 5 .|. . 7|2 . 9 . 9 .|. 2 .|. 6 5 2 . .|5 9 6|3 . . ER=8.8 44 clues

I'm sure there are better out there

tarek

by **999_Springs** » Sun Dec 14, 2008 7:42 am

Now I have got these outrageously annoying things called exams out of the way for some time, I can start reposting...

Code: Select all: 6....2.59592.4..1...35.92..3..1945...1.658.3...5273..1..4..51...3..2..4575.4...28

40 clues, ER 9.1
(This was found completely by accident when I tried to enter Mauricio's 37 clue puzzle into SE and I made a mistake!)

Code: Select all: 6....2.59592.4.81...35.92..3..1945...1.658.3...5273..1..4..51...3..2..4575.4...28

41 clues, ER 8.4

Code: Select all: 6....2.59592.4.81...35.92..3..19458..1.658.3...5273..1..4..51...3..2..4575.4...28

42 clues, ER 8.2

Code: Select all: 6....2.5952..4..1...35..2.73..1945...1.658.3...5273..1..4..51...3..2..4575.4....8

38 clues, ER 9.0

Code: Select all: 6....2.59572.4..1...35..2..3..1945...1.658.3...5273..1..4..51...3..2..4575.4...28

39 clues, ER 8.9 (Is this rating a mistake? I went through the puzzle and the 8.9 dynamic chain isn't dynamic at all.)

999_Springs wrote:
Eioru wrote:I think this

Bidirectional Y-Cycle 6.7
Forcing X-Chain 6.7 becomes 6.69

So, in that case...

Code: Select all
(one of wapati's puzzles) .7.6.3958 .968.7.13 3.8....76 .6749.832 8..732.69 932.8674. 7.3...684 42..68397 689374.2. ER=6.69, 55 clues

You missed the puzzle in your collaboration of ratings.

by **Eioru** » Fri Dec 19, 2008 4:23 am

6.5 -- 56 clues

Code: Select all: . 4 5 . 6 7 . 8 9 6 . 7 8 . 9 4 . 5 8 9 . 4 5 . 6 7 . 4 . . 5 7 8 . 9 6 5 . 6 . 9 4 7 . 8 7 8 9 2 . 6 5 4 . 9 6 8 7 . . . 5 4 . 5 4 6 8 . 9 . 7 1 7 . 9 4 5 8 6 .

Not improve results,
not 6.6 6.7 7.6 7.7 in SE rating,

and two 6.5 Bidirectional X-Cycles took my SE many time analysing.

by **999_Springs** » Mon Dec 22, 2008 8:34 am

Eioru wrote:7.4 | 36 | 57.3.1.6893.7.8.54.........79.....45.........86.....326.7......42.6.7.8131.2.5.76

It's only got 34 clues.
But you can put a 5 in r3c5 and keep the rating the same.

Eioru wrote:7.2 | 66 | .6..92.84..4.16.35....54.96126935478759428361843167952...243617632571849417689523

It's only got 65 clues.

by **Eioru** » Fri Dec 26, 2008 3:08 am

Code: Select all: 893475162 215396847 476281359 .3.8.271. 768513294 .2.....83 38..5.42. 657124938 .42.38.7. ER=4.5 63clues

by **Eioru** » Wed Dec 31, 2008 1:08 am

Code: Select all: .6.278.95 8.94356.7 57.691.8. .9578..6. 7.6..985. .8.5.67.9 .57964..8 9.8..75.6 6..85.97. ER=7.8 50 clues

Code: Select all: .62.78.95 8.93.56.7 57.69..8. .95784.6. 7.6..985. .8.5.67.9 .5796...8 9.8..75.6 6..85.97. ER=9.0 49 clues

by **999_Springs** » Wed Jan 21, 2009 11:02 pm

Code: Select all: .4.|731|.9. 1..|...|... 9.7|8..|... ---+---+--- 486|357|912 752|914|836 319|268|547 ---+---+--- 5.3|182|4.9 ..1|...|... .94|673|.5. ER=4.0, 50 clues

Code: Select all: 219|356|784 843|..7|659 657|498|2.. ---+---+--- 398|74.|5.6 421|563|978 765|8.9|.4. ---+---+--- 976|.85|4.. 132|974|865 584|63.|.97 ER=1.5, 67 clues

by **999_Springs** » Sat Mar 07, 2009 12:10 am

daj95376 in the contrary 17 puzzles wrote:
Code: Select all
+-----------------------------------------------------+ | 7 3 1 | 5 2 6 | 9 8 4 | | 5 48 468 | 9 17 148 | 67 3 2 | | 468 9 2 | 3 47 48 | 67 1 5 | |-----------------+-----------------+-----------------| | 468 48 3 | 1 456 45 | 2 7 9 | | 9 5 7 | 2 8 3 | 4 6 1 | | 1 2 46 | 7 46 9 | 8 5 3 | |-----------------+-----------------+-----------------| | 2 7 9 | 8 15 15 | 3 4 6 | | 3 6 5 | 4 9 7 | 1 2 8 | | 48 1 48 | 6 3 2 | 5 9 7 | +-----------------------------------------------------+

ER=4.6, 62 clues

Eioru wrote:6.6 | 66 | 453219786628735491197846325379..2..8215.879.3864..32.7732..18.4981.74.32546328179

It's got 67 clues.

Eioru wrote:8.3 | 57 | ....472969...8.4574..5.9831..4...789.9...8164....94523549876312638412975721935648

8.3 | 58 | ....472969...8.45747.5.9831..4...789.9...8164....94523549876312638412975721935648

by **999_Springs** » Sat Mar 14, 2009 10:43 pm

in the Patterns Game (game 72), Mauricio wrote:000102030300000400051004600705208006000000000400709108004600510006000003030905000 10.2/1.2/1.2

After singles, turbot fish and singles:

Code: Select all: 64.|1.2|.35 3..|...|4.1 .51|..4|6.. ---+---+--- 7.5|2.8|..6 ...|...|... 4..|7.9|1.8 ---+---+--- ..4|6..|51. 5.6|...|..3 13.|9.5|.64 ER=10.2, 36 clues

by **Eioru** » Fri Mar 20, 2009 9:59 am

ER |clues
----+-------------
1.0 | 80 |
1.2 | 77 |
1.5 | 67 |
1.7 | 56 | 568.4.132791283645423165...614...52.2.5.14..69.752641.1764.2.5..596.12.4.42.5..61
2.0 | 69 | 437691825268537941159842763892..5.3.615..3.8.743..8.5.326789514574316298981254376
2.3 | 62 | 327415698159862347684...25194.....7571.....2353.....69893..4716475186932261937584
2.5 | 57 | ...4..185..41..937..1...642...7..451.1..4.273.4.231869459617328182354796376928514
2.6 | 66 | 219356784843..76596574982..19874.5.64325619787658.9.4.976.854..3219748655846...97
2.8 | 57 | ..4.5678969.7.8.4557849.6..45.9378.68.9264.57.6758149..4..795689.68.5.7478564.9..
3.0 | 58 | 3517426894961832577826593411453....6967...53.2385....4513......82493...56798.54.3
3.2 | 63 | 18.2.79.5.59..1827.72589.1.7186245932649531789357182..89.1.57.2521.76.89.47892.51
3.4 | 58 | ..2...4131...2.689...1..257.1927.36572....891....91724985742136237916548641385972
3.6 | 54 | ......387....7.659.798.3421..5.3.946.6....735.....5812257389164498516273316247598
3.8 | 56 | 415.69.8767.85.4.9.894.7.6595.64287.8.7.956.4.647.895..9.5847.67.89.654.546.7..98
4.0 | 50 | .4.731.9.1........9.78.....4863579127529148363192685475.31824.9..1.......94673.5.
4.2 | 70 | 96173254884395672172581463919467385268752.3.4352..8.67419385276238.67..55762...83
4.4 | 66 | 3495812676283975145714629384537296817861..492912.4.753165..4..92379...46894.....5
4.5 | 63 | 893475162215396847476281359.3.8.271.768513294.2.....8338..5.42.657124938.42.38.7.
4.6 | 62 | 7315269845..9...32.923...15..31..27995728346112.7.98532798..346365497128.1.632597
4.69| 42 | ....291.....6189..196.458.24.15..29.5...8.4.7.6...45.3..84..6296....73..9.486.751
4.7 |
4.8 | 48 | 1.345.7...4..21...6.97831.4...3.8...234.7.518...2.5...875192436391.64.7.462.379.1
4.89| 38 | 6.7381.....1.2.3...4395761....7.8....7916584....2.37...64.3219...8.195......7....
4.9 | 36 | 1.2.3.4.5.73..58..485691..7..8.1.7..7...8...6..1...98.8..9.2..3.........3.71645.8
5.0 |
5.1 | 46 | ...1237..7..465.....3..76.4476.12.353.15.647225.734.61..76415.....258..7...379..6
5.2 | 58 | 4.5.67.8967..894.589.4.567.568942..77245..8969..678542157.94.68.498.675..8675.9.4
5.4 | 46 | 63214597881..9...4.4..8..1....85....16.274......96....481529.6.753416..9296738.4.
5.6 | 70 | 12345678945678912378913256423.9.58.66.52.893.8973612453625174985.86943.29..82365.
5.7 | 64 | 738421695692...418451...732314782569826...347975...8212479531861832..954569...273
5.8 | 60 | ...647981.1.2836577865913246423581795...29846..8.645328..4.2765.6.9.5218...8.6493
5.9 | 56 | 974...123612347589835..9674.6......8.4..9.2.5.2...1..7751964832293..8456486532791
6.0 | 55 | .54672.1.617.985.29..5...765.928..67...75.....7.....58463825791781934625295167384
6.1 | 60 | 528...341931524786476381592.19...85..64...17..53...62.195438267382976415647...938
6.2 | 64 | 259641738743985126681372..4896513247537264...412897...92473....37815.4.216542..7.
6.5 | 58 | ..4.5678969.7.8.4557849.6.245.9.78.68.9.64.57.6758.49114..795689.68.5.7478564.9.3
6.6 | 67 | 453219786628735491197846325379..2..8215.879.3864..32.7732..18.4981.74.32546328179
6.69| 55 | .7.6.3958.968.7.133.8....76.6749.8328..732.69932.8674.7.3...68442..68397689374.2.
6.7 | 64 | 12.689.7586.735..175.142...385274169942561738671398.5.438926517596417...217853...
6.8 | 62 | 6..1..38..3.5.8.1..183...9.8..613472421875936367924158146789523273451869.8.236741
6.9 | 65 | ..2.4.658....6.42346.25.971.4.532769926487135...619284685124397319876542274395816
7.0 | 63 | .134.7825..48.263128.1.3947....243183429187568.1.36294429671583.382451.91..3894.2
7.1 | 65 | 642319578187...439359...261914283657276...8935389..142721495386493...715865.3.924
7.2 | 65 | .6..92.84..4.16.35....54.96126935478759428361843167952...243617632571849417689523
7.3 | 61 | 371542986682...345459...217914376528768...13.523...76.135984672247...893896...451
7.4 | 35 | 57.3.1.6893.7.8.54....5....79.....45.........86.....326.7......42.6.7.8131.2.5.76
7.5 | 52 | ......217....5.8348..3..659..8...57127....946......382582941763746523198931786425
7.6 | 57 | .45.67.896.78.94.589.45.67.4..57.896.69..8547578946123.5479..6878.6.495.9.6.857.4
7.7 | 57 | 4.5.67.8967..894.589.4.567.568.94..77.45..8969..67854.15794..682498.675.38675.9.4
7.8 | 50 | .6.278.958.94356.757.691.8..9578..6.7.6..985..8.5.67.9.57964..89.8..75.66..85.97.
7.9 | 48 | ..8.62..5.2.85..6.6.57918.2..62.8.5185..16.2.3129.568.56.1.92.8.8.52..162.168.5..
8.2 | 42 | 6....2.5952..4..1...35..2.73..1945...1.658.3...5273..1..4..51...3..2..4575.4....8
8.3 | 58 | ....472969...8.45747.5.9831..4...789.9...8164....94523549876312638412975721935648
8.4 | 41 | 6....2.59592.4.81...35.92..3..1945...1.658.3...5273..1..4..51...3..2..4575.4...28
8.8 | 44 | ..9.52..3.2.93..5.5.367.9.2..52.9.3493..45.2.1427.359..5...72.9.9..2..652..5963..
8.9 | 41 | 6....245952..4..1..435..2..3..1945...1.658.344.5273..1..4..51...3..2..4575.4....8
9.0 | 49 | .62.78.958.93.56.757.69..8..95784.6.7.6..985..8.5.67.9.5796...89.8..75.66..85.97.
9.1 | 40 | 6....2.59592.4..1...35.92..3..1945...1.658.3...5273..1..4..51...3..2..4575.4...28
9.2 | 39 | 6....245952..4..1...35..2..3..1945...1.658.34..5273..1..4..51...3..2..4575.4....8
10.2| 36 | 64.1.2.353.....4.1.51..46..7.52.8..6.........4..7.91.8..46..51.5.6.....313.9.5.64
11.2| 37 | 6....2.5952..4..1...35..2..3..1945...1.658.3...5273..1..4..51...3..2..4575.4....8

by **Eioru** » Thu Mar 26, 2009 6:39 pm

Code: Select all: 943125786 158679342 7..348519 8...31.9. 3.1.92..8 59..861.3 639817... 215964837 487253961 ER=4.5, 64 clues Unique Rectangle type 3 (with Hidden Pair) (B3,C3,C4,B4)

The New Sudoku Players' Forum

Maximum number of clues for a given SE rating