The New Sudoku Players' Forum

[xavcor]

My Maplet application on Maplesoft:
https://fr.maplesoft.com/applications/view.aspx?SID=154551

sudoku extreme:
...6..93...6.7...219....4....5.68.9.76...35...2..........9.1.7.......6...4..3.2..

[xavcor]

my new maplet version 2
https://www.maplesoft.com/applications/view.aspx?SID=154657

[m_b_metcalf]

33 other extreme sudoku made with my maplet version 2

There are 5 duplicates in this set of 33, and they all have the same rating: 9.2/1.2/1.2. Curious.

Mike

[xavcor]

these 33 sudoku have been selected from a list of 1200000 sudoku which is the result of multiple generations with different seeds (it can explain the occurences) with my maplet (my own algorithm)
For the rating I used the excellent program by "1 to 9 only" : PGExplainer.
These sudoku are those which have the maximum difficulty of my 1200000 list (9.2)

[xavcor]

Here are 28 different extreme sudokus rating 9.2 generated with my maplet version 2

........1.....2345..6..1.2...7.1...3.8..3..6.9..7......5.48..7..78......4.....9..
........1.....2.3.....4.5....3...67...4..3....8..1..5..57864..96....7.1.3...5....
........1....23.45..4..5.6....7.48....7......82..36.....2.4...3.9....1..54..9.2..
........1....23.....4..5.6...1..2..7.4..3..5.82..7.3....67..9..4........5....6.74
........1....23..4..5..6.2.........5..2.6..1.78..9.....1....8...761.4.3.3...79...
........1.....2.3..24..5........1.....6.7...887..9....7....95..9...3.4..4..1..72.
........1.....2.3...1.45.6.....1...7.3.4......1.2.7.86..78..2.5.49......5..9.1...
.......12.....34.....25.6......17.....53......125.8..7.8.7....63..9...4.247....9.
........1.....234...514...6....76.....3....7..8..3.5....4......1......983.9..72..
........1....23.4...25.46..........2...6.7.5..85....6...9...4..3...9..2721..6.9..
........1....21.....34..52......6.7...7.8..62.657.23...8..3..475.......94..1.....
........1.....2.3...456...2..7..83....9.5..2.84......9..8.96..5.7.8.....496...1..
........1..1.23.4..5.1.63......4..76.64......2..8..4....5....2...7.9....39...4...
........1..2..3....1..45.3.....6.3...6.....781....7.96.5.2..8.7.84.5....6...389..
........1.....2.3...4.1.5.....6...2....78.9...9......6.61..7...2..8.16.393.5.....
.......12....314....54..6....23......7...2...68..1...5.2.....8.9.......68...6732.
........1....23..4...5.167...1.4.....5.27..4.76........2.3......48....9.3.7...5..
........1.....2.34...13.5......6.....74.......89....23..5..8.....32...5.1....47.2
........1.....2.3..45.1.......6.....3..5.1.746.8.....5..3...94...2..4.1..8..7...6
........1.....2.3...4.5.6......4......67..2.5.8.2...6.2....4...3...2.5.76..8..31.
........1....12.3...45..6.....2.1....7..8.9..6..9...5..1...8....964..7..4.....39.
........1.....2.3...4.5.2.....6......2.1.7..87.8.......1.8..7...57.4.1..9.....5.6
........1.....2.3....43.5.....367..8..3....2.48..29....7...5..49.4.8....86....71.
........1.....234..41....56.....4..3..3....7..7.89.5.....73..8.7.......59.2.1....
........1....23.4...56.4.7.......4...1...52..8...9...5.53...8..6...72...7.9......
........1.....2.3...1.4.256....1..6..7...35...4.2.......5.6892..395.....8..9...7.
.....1..2.....345...6.7.........2.18.1.8.5...3.2....4....1.73...7.92....4.1....2.
........1....23.4...56............3..7.8.1..646......9..7.5...3.5...8.6..983..1..

[xavcor]

1627 sudoku with rating 9.0 or 9.1 or 9.2 (no occurences) generated with my maplet.
https://www.dropbox.com/s/ip84r15ovk1cpk6/1627%20sudoku%20rating%209%20crypt%C3%A9s.sdm?dl=0
Actually I have a collection of 1100000 sudoku (no occurrence) class by rating ,generated with my maplet

[Hajime]

Find the key

Why?