The New Sudoku Players' Forum

[m_b_metcalf]

Code: Select all

 . . . 1 2 3 . . .
 . . 1 . . . 2 . .
 . 3 . . . . . . .
 . 4 . . . . . . .
 . 2 . 5 6 4 . . .
 . 1 7 . . . 4 . .
 . 8 . . . . 7 . .
 . . 3 . . . 6 . .
 . . . 8 4 2 . . .   A pearl for pat

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

[Hajime]

2 minimal puzzles I found with ED<=6.5. All others have ED>6.5

Code: Select all

...819.....1...4...5........7........4.738....32...8...6....9....3...7.....386...   ED=2.0/2.0/2.0 <-- not yet a diamond
...879.....6...1...5........6........4.937....37...5...1....7....3...2.....312...   ED=2.9/1.2/1.2

[Hajime]

For the X-Pearl Collection, all minimal

Code: Select all

...519.....1...4...5........7........1.738....32...8...6....5....3...2.....386...   ED=10.0/10.0/2.6
...519.....1...4...5........6........2.738....37...8...1....7....3...2.....382...   ED=9.9/9.9/2.6
...519.....1...4...5........6........4.638....37...8...1....2....3...9.....283...   ED=9.8/9.8/2.6
...684.....6...4...5........6........4.938....35...9...1....7....3...2.....317...   ED=9.6/9.6/2.6
...519.....9...4...5........6........2.798....97...8...1....5....3...2.....382...   ED=9.5/9.5/2.6
...579.....1...9...5........6........1.743....27...3...4....5....6...2.....682...   ED=9.4/9.4/2.6
...521.....1...4...5........6........2.738....39...8...1....7....3...2.....382...   ED=9.3/9.3/2.6
...159.....1...4...5........6........2.738....37...8...1....6....3...5.....382...   ED=9.2/9.2/2.6
...519.....1...4...5........6........3.748....27...8...1....7....6...2.....382...   ED=9.1/9.1/2.6
...519.....1...4...5........6........2.748....37...8...1....7....6...2.....382...   ED=9.0/9.0/2.6
...816.....1...4...5........6........2.738....37...8...1....7....3...2.....324...   ED=8.9/8.9/2.6
...589.....6...4...5........6........4.837....37...9...1....7....3...2.....312...   ED=8.8/8.8/2.6
...861.....1...4...5........4........2.738....35...6...1....7....3...2.....374...   ED=8.6/8.6/2.6
...519.....1...9...5........6........3.748....27...3...4....5....6...2.....682...   ED=8.5/8.5/2.6
...549.....1...4...5........6........2.638....37...8...1....7....3...9.....382...   ED=8.4/8.4/2.6
...125.....1...4...5........6........2.738....37...5...1....7....3...2.....362...   ED=8.3/8.3/2.6
...186.....6...4...5........6........4.231....35...9...1....7....3...2.....317...   ED=7.9/7.9/2.6
...574.....1...4...5........6........9.638....37...8...1....9....3...2.....382...   ED=7.7/7.7/2.6
...219.....9...4...5........6........9.738....37...8...1....7....3...2.....381...   ED=7.6/7.6/2.6
...625.....6...4...5........6........4.138....35...1...1....7....3...2.....317...   ED=6.6/6.6/2.6