The New Sudoku Players' Forum

[m_b_metcalf]

I looked for a diamond rating for Haijime's nice four-diamond pattern, and finally mined this elusive gem:

Code: Select all

 . . 1 . . . 2 . .
 . 3 . 4 . 1 . 5 .
 5 . . . 6 . . . 3
 . 7 . 8 . 3 . 9 .
 . . 9 . 5 . 3 . .
 . 1 . 9 . 6 . 2 .
 9 . . . 8 . . . 1
 . 5 . 6 . 7 . 8 .
 . . 4 . . . 6 . .

..1...2...3.4.1.5.5...6...3.7.8.3.9...9.5.3...1.9.6.2.9...8...1.5.6.7.8...4...6..

But it's very hard (like a real diamond)!

Mike

[Hajime]

I looked for a diamond rating for Haijime's nice four-diamond pattern, and finally mined this elusive gem:

Code: Select all

..1...2...3.4.1.5.5...6...3.7.8.3.9...9.5.3...1.9.6.2.9...8...1.5.6.7.8...4...6..

But it's very hard (like a real diamond)!

Nice job, SE=9.0/9.0/9.0 and minimal of course, but the r5c5 cell is filled, which is extra wrt the original diamond-pattern.
I could not find a diamond without r5c5.
I will post my highest pearl in another topic.

[m_b_metcalf]

but the r5c5 cell is filled, which is extra wrt the original diamond-pattern.

Yes, you're right, and I have no idea how the extra clue crept in