The New Sudoku Players' Forum

by **m_b_metcalf** » Wed Apr 30, 2008 2:45 pm

Code: Select all: . . . . . . . . . . . 7 1 . 6 2 . . . 6 8 3 . 2 7 5 . . 8 5 . . . 3 4 . . . . . . . . . . . 7 4 . . . 6 1 . . 1 6 7 . 5 4 2 . . . 3 6 . 8 1 . . . . . . . . . . . ED=8.8/8.8/8.8

Regards,

Mike Metcalf

by **m_b_metcalf** » Wed Apr 30, 2008 2:47 pm

::: comment :::

And here's another present (distraction), for gsf:

Code: Select all: . . . . . . . . . . . 7 5 . 1 4 . . . 1 9 4 . 2 8 6 . . 8 6 . . . 3 1 . . . . . . . . . . . 5 1 . . . 9 4 . . 7 3 8 . 9 6 5 . . . 5 3 . 6 7 . . . . . . . . . . . X-sudoku, very difficult

Regards,

Mike Metcalf

by **gsf** » Wed Apr 30, 2008 3:41 pm

::: comment :::

m_b_metcalf wrote:And here's another present (distraction), for gsf:

thanks
solved by sudocoux (sudocoup.c with -DX=1) with one round of forward checking, no backtrack
this means testing all first ply moves with singles leads to a solution

by **Mauricio** » Wed Apr 30, 2008 4:02 pm

Code: Select all: +-------+-------+-------+ | . . . | . . . | . . . | | . . 1 | 2 . 3 | 4 . . | | . 2 3 | 5 . 6 | 1 7 . | +-------+-------+-------+ | . 3 8 | . . . | 6 4 . | | . . . | . . . | . . . | | . 4 5 | . . . | 2 1 . | +-------+-------+-------+ | . 5 2 | 6 . 1 | 8 3 . | | . . 9 | 8 . 4 | 5 . . | | . . . | . . . | . . . | +-------+-------+-------+ ED=7.9/7.9/7.1

by **m_b_metcalf** » Wed Apr 30, 2008 6:21 pm

Code: Select all: . . . . . . . . . . . 4 8 . 1 2 . . . 9 2 5 . 7 3 1 . . 7 3 . . . 9 4 . . . . . . . . . . . 2 8 . . . 1 5 . . 5 9 7 . 8 4 2 . . . 1 3 . 4 5 . . . . . . . . . . . ED=9.2/9.2/9.1

Regards,

Mike Metcalf

by **m_b_metcalf** » Wed Apr 30, 2008 6:30 pm

::: comment :::

I've just returned from watching the Spanish film "Fermat's Room" (La Habitación de Fermat). It's about the deadly consequences of trying to prove Goldbach's Conjecture. I'm sure you mathematicians would enjoy it. Highly recommended.

Regards,

Mike Metcalf

by **gsf** » Wed Apr 30, 2008 8:24 pm

Code: Select all: . . . . . . . . . . . 8 1 . 6 2 . . . 1 2 5 . 7 3 6 . . 2 3 . . . 1 8 . . . . . . . . . . . 5 7 . . . 6 2 . . 6 5 8 . 3 7 9 . . . 1 2 . 9 5 . . . . . . . . . . . ED=8.6/8.6/7.7

by **m_b_metcalf** » Wed Apr 30, 2008 8:34 pm

Code: Select all: . . . . . . . . . . . 9 3 . 5 2 . . . 5 3 4 . 8 9 6 . . 6 7 . . . 5 9 . . . . . . . . . . . 9 8 . . . 1 4 . . 1 5 9 . 3 4 7 . . . 4 1 . 6 8 . . . . . . . . . . . ED=8.2/8.2/6.7

Regards,

Mike Metcalf

by **gsf** » Wed Apr 30, 2008 8:36 pm

Code: Select all: . . . . . . . . . . . 4 2 . 8 9 . . . 1 2 5 . 7 3 6 . . 6 3 . . . 8 5 . . . . . . . . . . . 8 7 . . . 1 4 . . 5 6 7 . 1 2 3 . . . 8 3 . 2 5 . . . . . . . . . . . ED=6.9/6.9/3.4

by **TTHsieh** » Wed Apr 30, 2008 8:44 pm

Code: Select all: . . . | . . . | . . . . . 1 | 2 . 3 | 4 . . . 2 3 | 5 . 6 | 1 7 . - - - + - - - + - - - . 3 6 | . . . | 2 5 . . . . | . . . | . . . . 5 7 | . . . | 8 1 . - - - + - - - + - - - . 9 5 | 1 . 2 | 7 3 . . . 2 | 8 . 7 | 5 . . . . . | . . . | . . . ED=8.2/8.2/7.8

TTHsieh

by **gsf** » Wed Apr 30, 2008 8:46 pm

Code: Select all: . . . . . . . . . . . 4 3 . 9 2 . . . 1 2 5 . 7 3 6 . . 4 3 . . . 9 5 . . . . . . . . . . . 5 7 . . . 1 8 . . 7 5 4 . 1 8 3 . . . 9 7 . 2 5 . . . . . . . . . . . ED=5.8/2.0/2.0

by **TTHsieh** » Wed Apr 30, 2008 8:49 pm

Code: Select all: . . . | . . . | . . . . . 1 | 2 . 3 | 4 . . . 2 3 | 5 . 6 | 1 7 . - - - + - - - + - - - . 3 4 | . . . | 6 5 . . . . | . . . | . . . . 5 8 | . . . | 2 1 . - - - + - - - + - - - . 4 5 | 1 . 2 | 8 3 . . . 6 | 4 . 8 | 5 . . . . . | . . . | . . . ED=8.0/8.0/7.8

TTHsieh

by **g.r.emlin** » Wed Apr 30, 2008 8:52 pm

::: game 0030 status LIGHTNING :::

Code: Select all: game 0030 2008-04-29+23:21:00-0000 LIGHTNING duration 21h28m dealer gsf pages 222-230 (open) 4 players ________________________________________________________________________________________________________________ 1.2/1.2/1.2 gsf 4.4/4.4/3.8 TTHsieh 6.9/6.9/3.4 gsf 8.4/8.4/7.8 TTHsieh 1.5/1.2/1.2 TTHsieh 4.5/2.5/2.5 gsf 7.0/6.7/3.4 gsf 8.5/8.5/8.3 m_b_metcalf 1.7/1.2/1.2 TTHsieh 4.6/2.0/2.0 gsf 7.1/7.1/7.1 TTHsieh 8.6/8.6/7.7 gsf 2.0/2.0/2.0 gsf 4.7/1.2/1.2 gsf 7.2/7.2/7.2 Mauricio 8.7/8.7/6.7 gsf 2.3/2.3/2.3 gsf 5.0/5.0/5.0 TTHsieh 7.3/7.3/7.3 m_b_metcalf 8.8/8.8/8.8 m_b_metcalf 2.5/2.5/2.5 TTHsieh 5.2/5.2/5.2 m_b_metcalf 7.4/2.3/2.3 gsf 8.9/8.9/8.4 TTHsieh 2.6/2.5/2.5 TTHsieh 5.4/5.4/5.4 gsf 7.5/7.5/7.1 m_b_metcalf 9.0/9.0/9.0 gsf 2.8/2.0/2.0 TTHsieh 5.6/2.3/2.3 gsf 7.6/7.3/3.0 gsf 9.1/9.1/9.0 Mauricio 3.0/3.0/3.0 gsf 5.7/1.2/1.2 gsf 7.7/7.7/4.4 gsf 9.2/9.2/9.1 m_b_metcalf 3.2/3.2/3.0 gsf 5.8/2.0/2.0 gsf 7.8/7.8/6.6 gsf 9.3/9.3/9.0 m_b_metcalf 3.4/3.4/3.4 TTHsieh 6.2/1.2/1.2 gsf 7.9/7.9/7.1 Mauricio 9.4/9.4/8.2 m_b_metcalf 3.6/3.6/3.6 TTHsieh 6.5/3.0/3.0 gsf 8.0/8.0/7.8 TTHsieh 9.5/9.5/8.0 Mauricio 3.8/3.8/3.8 m_b_metcalf 6.6/5.2/5.2 gsf 8.1/8.1/7.1 TTHsieh 9.6/9.6/8.8 Mauricio 4.0/3.8/3.8 gsf 6.7/6.7/3.0 gsf 8.2/8.2/7.8 TTHsieh 4.2/4.2/4.2 m_b_metcalf 6.8/6.8/3.0 TTHsieh 8.3/8.3/7.8 TTHsieh ________________________________________________________________________________________________________________ open ratings : 4.8 5.1 5.9-6.1 9.7-10.7 submitter entries score response notes ----------- ------- ----- -------- ----- Mauricio 5 923 29m05s diamond,pearl*4,highest-rating m_b_metcalf 10 1298 16m04s diamond*5,pearl*5 TTHsieh 17 1974 7m59s diamond*5,pearl*9,last-entry gsf 26 2242 10m24s diamond*3,pearl*13,dealer ----------- ------- ----- ----- 4 58 6437 diamond*14,pearl*31

by **gsf** » Wed Apr 30, 2008 8:57 pm

Code: Select all: . . . . . . . . . . . 8 2 . 3 4 . . . 4 3 5 . 1 6 2 . . 3 4 . . . 7 6 . . . . . . . . . . . 5 2 . . . 8 4 . . 1 5 6 . 7 3 8 . . . 7 4 . 2 5 . . . . . . . . . . . ED=6.1/2.0/2.0

by **TTHsieh** » Wed Apr 30, 2008 9:00 pm

Code: Select all: . . . | . . . | . . . . . 1 | 2 . 3 | 4 . . . 5 3 | 6 . 7 | 1 2 . - - - + - - - + - - - . 1 4 | . . . | 8 6 . . . . | . . . | . . . . 8 2 | . . . | 7 5 . - - - + - - - + - - - . 4 6 | 1 . 5 | 3 9 . . . 8 | 3 . 4 | 6 . . . . . | . . . | . . . ED=7.8/7.8/6.7

TTHsieh

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