Using software to make 19C and 18C puzzles

Programs which generate, solve, and analyze Sudoku puzzles

Using software to make 19C and 18C puzzles

Postby coloin » Wed Aug 07, 2019 8:37 pm

Method to generate 18C and 19C puzzles, using available software requiring only very basic computing knowledge !
Perhaps we can help generate a puzzle for every grid solution ... as here

DOS Software needed
gsf's sudoku-64 program - my version is
sudoku-64.zip
(194.45 KiB) Downloaded 5 times

Windows software - boxer text editor is useful [freeware] from here

download and copy the program to a directory of your choice

find a random 18C puzzle or 19C puzzle and copy/paste the numbers into a text file as a 81 character string and name it file.txt

eg an 18 clue puzzle
Code: Select all
                                                                                                                                     
1...........2..3...8......2.4....18....95...........6.6.7..1........8.....5.2...9

save as file.txt
copy this file.txt into the directory where the software is

open the windows dos prompt and navigate to your directory

type exactly this line
sudoku-64 -go{-1+1}x4 file.txt > sols4.txt
in a very short time you will have a text file with all different puzzles as 81 character string

using a 19C puzzle [from below] the difference is significant and many more puzzles are made - the search space is thicker !

Code: Select all
14............86.9......2.....713..5...45......9.8......8..2.................5.14

x4 gives 28805 puzzles in 5 minutes
x5 gives over 283716 puzzles ! in around 30 minutes

some puzzles give more puzzles - i think the one above is unusally a lot of puzzles usually every n is x 10 more puzzles ........ so try to guage what xn gives you initially ... and a bigger than x6 will take longer or reach the limit of the memory !

so maybe 4 different processes [1 puzzle x 5 ] at the same time could be employed

the puzzle files could be amalgamated if you can manage that
so
when you have a million or so .....
pm Mathimagics and email him the zipped up text file of puzzles , at the moment 19C puzzles would be the way to proceed ......

here are a few 19 clue puzzles for anybody to be going on with ....
Hidden Text: Show
14............86.9......2.....713..5...45......9.8......8..2.................5.14
14.........9...6..............1.3......458.....8.7.2....6..........1..54.8...9.1.
14........3.............98......3..4..6795......16...7..........29.8..........7.1
14........3........7....56....1....4..2859......36......5....9.............4.2..1
14........3.....7......56.....139..47...8........24.....6...5.....21............1
14........9...........6.8.....123......4.5.....79..2....6..2....3.....4.......9.1
14......7.....76..3...........14........76......28.3..8.6..5..........18........4
14.....8.......6...3.5........1.3......45......97.62....6..9...........1.......54
14.....8.....1.6..3.....2.....1.3.....8.4.......759.....6..2...5.......4........1
14.5......7....6..5.....9.....71.......435.....3.8......6..2..........14.....1...
142............6..3....7......5.3......2..4....5189.....6..5..........81........4
15...9...7.....6........4.....321.....26..9.....7.8......46..2..........8.......1
16...........9.23.......8...8.4.3......1........786....3......7.52.........6....1
16.......3.....5.......2..8...98........541...7.31........3......8....46........9
17.............5...3...26.....19.......4562.....8.......5.............479..7....1
17.8..5........3...8..........12......3.5.......789.1...6...........4.2........71
18.......7.....2.....5..6.....4.1.....3..69.....897.........4....5..9........8..1
18.......9.............5......3.45.8...1..2.....786.....5....6..24.........4...9.
18....4....4...........2..9..9.23......75.8.....1.6...45.8.....................26
186........5...........43....1.2.......756.9.....89..........1..3...2..........57
19.............6..3.....2.8..8.23......456...7..1.......6.........9....1.....8..9
19...5...7..............4.8...12.....3.4...9....789...8.........54.............21
19.5...........6..3.....2.....123....8...6......7.93......12.............4.9....5
2......7.......5.......5.3....8.3......516...7....9..1......4...53..4.....6.....2
2....6...1.....9.....5..3......21.....3..74.....389...........2.6.9.....8.......1
2...3......5...6.......4.9...612........56......7.9..4......2.594........7.......
21.......7.....5.......4..8...981.......562.......3..4..8.....9..6....1.....7....
23.......7.......5.....68.....324......6.19.......9.3...8.......41...6......7....
23...5...7.....4........8.....1..7.....546.......89..3..8.......7........9...2.6.
3...........1..96........7.8..413......62..9.....8.....96..74...5...............3
3..........2....51.....7......143.2....25.....6.8.......15..........89...9....7..
3.........7......5.4...1..2...736.9....4.9....5..2......2.....1......7..9...7....
32...........9.5........8...3.2........48.......756..4..8.7............2.1.....93
32........7....5.......1..8...159........62.....3.4.76..8.....3.............7..6.
34.5...........6..2.....7.....723..8....86...4...1......6..2...........4.......75
39........7....5.......48.......3.1....481.....865.7.............6..........72.3.
39.......7.....4.......48.....72...6....5.......183....18.................5.72..3
4...............79...1..2..8....3......576.9.1...49....6......4..9..7.........8..
4...........8...1........7....2.8...9..4....3...791....1......4.8.1.....6...4...5
4..........2.....5.9...7.....162.......15........893.....5....193........7.....9.
4.........51...........8..7.....7..8.2.456......9.1.....7.....2...3..4...18......
4......7............6..2..3...453.....19......9.78.4..7..8.............6..3.....2
4..2...........69........5.....3.4...7..56....5.798....95....8..............6.1..
4..6............29.......8....729......4..1......85....32.9......9..3...1.....7..
4.1.9......7............26..6.423.......65......7....13.......4..8..2....5.......
4.12......9.....5.2......3....7.3......456.9......9......6....2.8...5...........1
41.............6...2...89.....213......4.6........93..9.6..............1..5.7...4
41.5...3.2...............8....1234.....45......67.......9..8..........71........4
42.......1.......9....7..5.....2...4..8756.......89.....5....6.............3..4.2
42.5...............1....96.8...21......3.6.7.....79.........3.4..6........7.....5
45........7......2.....18......23......48.....6.75......83..4...1...........7..5.
45......1........7.....8.......12.38...946.......5....3.1.........5..4....2...3..
47.5.......1....6.......2.....85...4...176......4.....9.6..2...........13.......5
49........7.....3......68.....631.......857.......9..4..8........5.9..1.....7....
5............3.97........3....798...8..5.6..1....2.....94.7.....3............5..6
5.......4.2........4...8..6...923....3.45.......7...1...6.........5..2....8...3..
5......2..........97..6.3....4.3........56......7896.....1...4.6.......9.3.......
5...1......9...27.......3.....28.......3.5....3.4.79..........1.7...........4.5.8
5...9..........87..2..........762...24...9......3.8....3......5.78..........1...4
5..1...........38...3....9.2...1........46......789...........1.98........7..5..6
5.1...4..8.....5.......2........37...3.286..9....59...4...1............2.......3.
5.7...8....3...........2.6....423.......19...7....6...8..5.............9.6.....23
56.......7......2......41....18.9.53...416........3.....8...3...............7...6
58.............34.1......9.8..153.......2.......78...6........5.23..9.....6......
6..............12....3...5.....57......98...7..3.21....3......4.72..........1...6
6............3.97........3....79....8...4...2...123....9........35..4........5..6
6.......37.....5.......48.....9....7...451.......83....4........8.2.........7.1.6
6.....3..8.............4.5....325.....2.496......7.1..3.5.........8.......9....2.
6....9..8....3.97........3....798...8..5.6..2...1......9........3............5..6
6..3.............8.4......9...274...1....57......89....2....4...84....5.......6..
6..3............4..4.....92...274.8.1....5.......89....2........84............62.
6.1..............7......93......2....5.483......76...1........8.32..9....4......6
6.1.......2.............93.....12....5.48.......76...1........8.32..9....4......6
63...7.........8.......42......59......7231..1...8.....12..............95.......6
7.....8..9.............2..4..3926....2.1.4........35.....8.............6.4.....32
7..1..8.............3..2......5.9.....23.6......78.4.....8....7.......3...9....62
7..3....2.........4.....95.....59......746....5..2............7.95........32....1
7..8.......9...56.......9.....1.9......3..2...3.784.....6..5..4.........1.......7
7.4....5......9.8.2........6..423......76.......1......6......2.8..........2..6.7
7.4...8..1.............2....9.5....8....19......746...8..4.............6.6.....92
71..3..........3..4.....8......19..7....5......6283.....3..2...........1...6....4
73.............2.......15..9...2.......456...3..78...6..2..........4.....1.....93
79.......3.....2.....5..8.....293.......1.6.3....87..9.16..............7..8......
8........7..4..........295...4.15.....2.6.......879.1...5............8.2........7
8.......41.............3..6..3.56.....7.32......4.91..............8..9....6....23
8.....2........6..34.......9.7.26........7......845.....6..2......3....8..1.....3
8.....4..7.6...3.........5....7......2.4.69.....281....5......1.....9..........87
8...9....14.............65....127..4.....63.....84......6..............7...4...81
8.7.............6......45....87.3.4....28...9...1.6..........8..5...2..........97
84....7................5..1..6.59....9.2.6.......83.1.7..4.............6.......35
84.5..1........6..5.......2...927.......46...1....3.4...6..2..3................5.
85.....7........9.2.......6...5.3........61....3798....7.....3............9.4...2
9.....6..8............5...4...1.3.....25........7891.........5.7..9...3...6.....2
9....75.....6...2.......4.......8.......513..8..792..5..........34.............89
92........7......5.....18.......3.9....456......18.7....8.....6.............7.42.
93.............8.......15......2.......456...3..78..2...5.4...........7..1.....93
93.......7....4........18....8..3......1562.....4.9.....2.............7.....7..36
96.......7.............48.......9.3....456....5.18.....18...9...............72..6
...............89.1.2.6.......7.1......4561....3.2.......8......2......75......32
.............7..4239.......8...23......865......7..1.......1..5.74............3.8
.............9.52..1..6.......72.....3.1....9...489...8.......37.2............6.1
..........3.....85...2...4.9..1.3.......65.7.2..9.8.........1....5..4.....6...9..
.........1...3......9...85....7.8......615.8.2....9.....8...7.3.56..............2
.........27............569....1..2.....7.3.5...1489..........876....1..........2.
.........52.....9......8..6...92.....3...1......786.1..46.........5..2....8...3..
........1..2....54.....7.....8231......45.....6..8......1.2......9...7........36.
........1..6.....58...3........26.....5.7.......3892.....1...64.........32.9.....
........12..6...3.7.......5...391....8.4.....6..27......1..5.........7....9...4..
........16......4583..........68.......4.1...2...93....175...........8....9...2..
........2.4...6.7.........1...123....9..5.......97....7.1........3...46.2.....5..
........4..1.....53...68.......3.7....2451......28.......5....9......3..7.....8..
........6...6...759....1......13........5...23..789....6.5............3...2...9..
........6..4.....5.2..3.1.....81......8654....9.7.....8.65...........3........9..
.......1...2....5.9....7......14....8..25....26..79...5.1............6.......89..
.......1..6...5.....7....82...12.....3.4........789.2...2............5....8.9..7.
.......18.5...6...........7...1.3....2.4........789.....78...........5.3..8..4.2.
.......19.6.3............8....628....7..3.1...5.7.9....21.........5..7....8......
.......2..1.....5.9....4......12...6....56...4..97......25...........9....6.3.7..
.......2..5.....81.64.....7....15......4963.......7...2.78...........6..8........
.......2.1......5.9....4......12...6....56...4..97......25...........9....6.3.7..
.......35........17...2......5463......1.5...6.97.......15...........6..8.....2..
.......51.9...2..........7....153.4..3.7........48....1..54.8........9....5......
.......7.......1..9.6..2.......8......845..3....729....75....8......1..9.8.......
.......81.2........4.....7....613......42.6....37....5..1..8.........4..9.8......
.......81.4........9...8.6....4235.....95........8....3.1.........2..4....85.....
.......86.4..............1.....87....7..2.......361.2.8.1......3..5..7..6.....4..
.......86.4..............1....98.....7..2.......361...8.1.9......35..9..6.....4..
.......94.........17...........687..9..74........59..2...1...3...4...6...8....1..
......3...6.....1.9....2......1.3.....25.6......97..4..1..........4....9..3...2.8
......3..9...1........4..5......37...2.4.6......789...3.1......7......4........25
......5.4.3........1....8.....423......5..4...6.81......5..............19....7.32
......6..2.....4..93...2......4.31.....169.8..5.7......1.6.............9........2
......8.........7.5.2..1.......23.......546....37.9......8.....1.......9..8....32
......8..3.....4..91...2.......5...6..874......7819.....4..............2.......39
......8.1.2...5...........7...183....492........79......28...........45.1.8......
......8.12.......58.9.2.......9.1......465...4...8.3....15..............3.......6
......8.14........9.3..7.......72.....2136..5.....94.....8.4..............1....3.
......84......5.....9..2.....5.39.....25.6......48.1...8.......7.......9.......32
.....1.......9..2..18.........72.....3..5.4.....489...8.....3....2.7..........6.1
.....2.....5....9...7....4.8..1....6...94.......756...1..........48...5.2.......3
.....3.....2....15..9..........8.7.....915.......243..36..........49....7.....4..
.....37....5........1.9..6.....64......51.......8.73..73....4..2...5..9..........
.....7.82.6...............9....28....1...47.....739...4.9.........5..6....8.1....
.....8.........3...65......4...318.....9........687..........9.3.7.2.......7...56
.....8..1.6...4..........8....21.....3.54.7.....7.9...1.....57.9.8...4...........
...4...1........765........8..123......5...6....84.....79.....2..6..7.........8..
...4..75.8....2...............7........546.3.2...89.........8.9..51.......4.....2
..1......5.............896...3..5..7...4.6......987....9.....4..6.3.........1...2
..13......7....8........59....1269......5....3..7.9....9........56.........2....1
..2...........258.1.4........14.3......19.......76..5........92.8.3.............4
..2....7...4......9....16.....1..9.....458......72....3......4..6...3..........27
..4...78...........3...2....6..5.......18.......749.1.7.18...4.........2........6
..7......2.............8.6..1495.......72....9..4.3....3......2.6...4.........5.7
..8.....7..1.......3...15......5.9.....86......6472....1........9...5.......8...6
.1........2...9.........56...7158......4.6........7.9...53.....9.6....7.........2
.1........8....35....4..6......21.....5..478....789..............46............12
.1.......84.............65....1.7..4....562.....8.3.....6..............7.7.4...81
.1......5.....82...3..........4.3......15........698..8.9..2...........12.....3.4
.1......8.8....34....4..6......21.....5..47.....789..............46............12
.1....8...2.....7...6..2......15.......4.91....387....85...............9.......36
.1...8....3....4......6..7....123......45..2.5..9.......73.......4....8.........1
.1..7..........3..49......6...921..4...4.6...8..5........6...41..8........7......
.2.4..8.......3.7...5..........36......5..2....3789......8.............56......39
.3.....2..............2.39..5...1..4...2.9......468.....8......6.9....8....3....1
.3....1..74............8.5....921..4.....6.7.....85.....5....1...2.4.......3.....
.3....7......8.6...4.9........123......4.7.....5..62..9.6.............4......5..1
.3....9.........2.......65..4..2...1....59......468.....5......6.9....8....3....2
.3.2.............87......5.....27.....7.5..4.2..813.........3.......5....64.....2
.4.............6...1.74.5.....1.3......478.....75..2..9.6.........3....4........3
.4............76...1..3.5.....1........478.....75.62..9.68.............4........3
.4..........5..9..13..........1.3......45......7.892..9.6..2.......7...1........4
.46.....1...9...457............39......1.6...2...87....1.5.....8.....7........3..
.7........8............2..6..54.......21.97.....7834.....89.............9.6....2.
.7.....9..3.7...........65......3..42..165.......29.....6......1.9....6....3.....
.8....7....9..2.....4......6..423........68.3...1.9...75.8............6........2.
.84...7................2.5..5.4.....1..986......7.14....78............31........2
.9....8.....6...7.2..........6723.....7.8........49.....58...........1.9.......32
1...............8....4.2....7.5.43.......62.....781.....2....6..53.........9...1.
1..............4....9.52.......23....8..467.....7.9....4.1.............9.6.....23
1..............6..84...75.....1.2......486.3...5.3......6..5..........41.....3...
1...........8..4..39...25.....123.....745.8.......9.....4.............2........93
1..........4....6....2...9....13......3.56...2..87.4........2.8..5.6..........1..
1.........6....9......9.58.....2..54...65.......789....95........6.........3....1
1.........8....3..7..2..4.....129.....264.......7............8...4.6.......5.8.1.
1.........8....6..5..6..4.3...21......376.9.....5.9.......9......6...........8..1
1........7.6...4........35....1.3....2..6..9....827...........8.5...4..........17
1........74....2.......23.....523...8....6......7.9.....3......6.......1...1...87
1........78............3..6...9.2.....21...4....8751.....7....8...........6....32
1........78..9.4........6.....123.....365.9.......7..............6....2.....48..1
1........8.......2.....6.3...6527.....76.3........91...5..4.8.............3....6.
1........8.....5.......42.....143....3..26.......7...1...9....8.64..2.....2......
1........82............79......837..2..41.......7.9...........2..9..5..6.5......1
1........87.......5....2..9...75......34........186.5....8...1.........3..9.....2
1........93..............28...3591....84........7.1.....4.7.......8.2.........5.4
1.......5.......974..6.........29......4..1...9.875....72........8..........3.4..
1.......89............4..5.....214......562.....7.8.....5.......246............93
1......9.7..6..........2.......253.......64.....791.....2....6..73.........8...1.
1.....2........65.3...9.....9.3........456...7..18......6..2.....4.....1........8
1.....2......853..7...........9.35.....1.6...2...74....3........9.....1........78
1.....4..9.....8.......5.9....1.3......7.65..2..48............2.3...4..........81
1.....5..2.......7.....8.6.....29.....3546......7....1.......42.96..5............
1.....78.9.........3...2....6.523.......46........91..7...........8....3.....5..6
1.....8..........598...4........3.1...5.46......257......8............7...7....46
1.....8.......8..53.2..1.......83.1...524.......7.5....................6..43...2.
1.....8..2.....4..9....2......1.95....875.......48......48...3.........9........2
1....9....3...........6..74.9.1.3......4...2....987.....5........6....8....3....1
1...5...........927...........234......8..1.....79....6.9........2.....3...3.87..
1...9..........6..3.....2....87........4.6...7..159.....6..2..9..4.....1........4
1...9....78..6.4........6.....123.....3..49......87.....6.....2..............8..1
1...9.8............6.2...5....36.......4.5.2.3...18.........9.3.25.......4.......
1..2...............4.....5....9.........54.7.2..381.........1.3..4.6.....75.....2
1..2............5.......96......3......465...7...89.....5.....48.6.........37...1
1..2...........5..2.....96....1.3.....9.56.....687....8.......1....95.7..........
1..2...........95........6......3......756.......89..4..5.....3.86......4..3....1
1..2........5.......3....5......3...9..46..3..2.719...........7.65............1.2
1..2...4........5.......96.....2........56.7..6.189....5........86.........3....1
1..3.......2....7.......89.....29......5869.2...7......9........86.........4....1
1..3..7.9......1....6..........1.9....8456.......78...3........9.............5.84
1..4....8......6........2...2.5.3.....9.26...4..18......6..2...........15.......4
1..6.....4..........2...83....12........793.....58..7..9........3..........7..5.1
1..8.....7.....6.....4.......8..1.....35469.....9.7.........58...4..9...........1
1..9....6................5.9..3.8.......56.2.6..17..........1.3..5.8......4...9..
1.2............9.....4..68...7.4.....8.359.......68...8.........6..........2...71
1.2...........86........9.....183..4..97........42...1.28........6..7...........2
1.2.6......8.............37..9.2........56.4.2..189.............4...7.........1.2
1.5......8.............7.9.....39....6.45.......18......3.1..48.7.....3.........1
1.7............2.48.....9.....159....2...3......7.6.....6....3..9..........8...71
1.73.......6....8........2.....26......45.....3.7.9......8....1.29...6..........4
1.8........7.......6...54......23..7....5..1....789..........72.5...4...........8
1.9...........5.3........8....923..68...5.......1.6....83......2.5.........4....1
1.9....7.8...........2..6......28......4..3.....791....2........4......9.....5.18
1.94...........6...3....2.....5.3.....8726...4....9.....6..2...........15.......4
12.5......4.............69....237..1....59.....41.......8......9.6.8............2
124.......3.............69....287.....7.56........1..4...3.....6.8...5..........2
13.......................28...3..1....8426......78......4.7.......8.2...9.....3.4
13.............65..4......2...1.3......487.....7.6..2...6.........9....1.....1..4
13....7........6...4..........1.3......45......596.2....6..2.8.............6...14
13.2..7........6...4..........1.3......45......596.2....6..2.......9...1........4
13.27..........6...4..........123......4.7.....85..2....6..............1.....1.94
1325...........6...4..........1.3......457.....72..9..6....8.....9.............41
14..............9..3..7..5.....2........59.27...163.....5.....6..9.........4....1
14..............9..32.........1.3......467.....69...2...9..............15....17.4
14.............6.......87.....13.......24.8.....5.9.3.9.7..5...3.......1.......4.
14.............6...3.9........1.3......45......58.92....6..5........2..1......8.4
14.............6.2.3....8.....173......4.......58.97..8..........6.2.........1..4
14............36...7...........1...7...856......4.2..89.6..5...8.......45........
14............52...3..6.8......13......45......72.9.....9..2...........1...7....4
14............76..3...........14...9....76.....528......6..5..........187.......4
14............86.9......2.....713..5...45......92.......8..2.................5.14
14.........9...6..............123......45......8.7.2....6..........1..54.8...9.1.
14........3.............98.....23..4..67.5......1.4.........61..29.8..........7..
14........3........7....56....1.7..4..2.59......36......5....9.............4.2..1
14........3.....7......56.....139..47...86........4.....6...5.....21............1
14.......3..............65....3....4...7659.....1.9.....6..2.....9..64..........3
14......7.....76..3...........14.......5.6......28.3..8.6..5..........18........4
14.....7.......6..3....7......5.3......2..4....5189.....6..5..........81........4
14.....8.......6...3.5........1.3......45......978.2....6..9...........1.......54
14.....8.....1.6..3.....2.......3.....82.6......759.....6..2...7.......4........1
14.....9.........4.3....8.....1.3......47......5.862....6..2..........4.......91.
14.5............9..3..........1.3......467.....7..5.2...9..............18....17.4
14.5...........6..2.....7.....7....8...4.6......915.....6..2...........4..4....75
14.5......7....6..5.....9.....719......4.5.....3.8......6..2..........14.....1...
16...........9.23.......8...8.4.3......12.......7.6....3......7.52.........6....1
16.......3.....5.......2..8...987.......5.1.....3.6...4...3......8....46........9
17.............5...3...26.....193.......562.....8.......5.............479..7....1
17.8..5........3...8...........23.....3456........9.1...6...........4.2........71
18.......7.....2.....5..6.....431.....3..69.....8.7.........4....5..9........8..1
18.......7..9..6........4......21.....3.549.....7.8...8.......2.45..............1
18.......9.............5.......2.5.8...1592.....7.6.....5....6..24.........4...9.
18....4.......8........2.9...642........598.....1.6...45.....1.................36
186........5...........43....14........756.9.....89..........1..3...2..........57
19...5...7..............4.8...123....3.4...9....78....8.........54.............21
19.5...........6..3.....2.....1......8.456......78.3......12.............4.9....5
19.8........9..6..3.....2......23.5....456...7....9.....6..............1.8......9
2..........5.3.6.......4.9...61........45.......789..4......2.594........7.......
2......7.......5.......5.3....873......5.6...7....9..1......4...53..4.....6.....2
2....6...1.....9.....5..3......21.....3.5.4.....389...........2.6.9.....8.......1
21.......7.....5.......4..8...981......4.62.......3..4..8.....9..6....1.....7....
23.......7.......5.....68.....324.......8.9.....75..3...8.......41...6......7....
23...5...7.....4........8.....1..7.....546......78...3..8.......7........9...2.6.
3...........1..96........7.8....3......625.9....7.9....96..7..2.5...............3
3.........7......5.8...1..2.....6.9....45.....5.128.....2.....1......7..9...7....
32...........9.5........8...3.2.9......4.3.......56..4..8.7............2.1.....93
32........7....5.......1..8....59......78.2.....32..76..8.....3.............7..6.
39........7....5.......48......23.1....4.1.....865.7.............6..........72.3.
39.......7......2......48.......9..6...45.......183....18...............6...72..3
4...............79...1..2..8..2........576.9.1...49....6......4..9..7.........8..
4...........8...1........7....238...9....6..3...7.1....1......4.8.1.....6...4...5
4..........2.....5.9...7.....162.......154.......8.3.....5....193........7.....9.
4.........51...........8..7....37..8.2.45.......9.1.....7.....2...3..4...18......
4.....5.......2....5..........2.3......45.8....3.896...4..6............3.7.....92
4..1..7.........9......2......45.....1.9....39..781...7..8.............6..3.....2
4..2...........69........5....13.4...7..56....5..98....95....8..............6.1..
4..5...........38...3....916...1.......4.3......789...........5.98.......2......6
4..6............29.......8....729.......3.1......85.....2.93....39......6.....4..
4.1........7............26..6.4.......41.5......789..1........4.5...2.....3.....9
4.12......9.....5.2......3....7.3.......56.9....18.......6....2.8...5...........1
41.............6...2...89.....21.......456......7..3..9.6..............1..5.7...4
41.5.....2.5.............8.....234.......6.....6789.....9..8..........71........4
42.......1.......9....7..5....12...4..8.56......4.9.....5....6.............3..4.2
42.5...............1....96.8..421........6.7....8.9.........3.4..6........7.....5
45........7......2.....18......2.......486....6..59.....83..4.........1.....7..5.
45......1........7.....8......7.2.38...946.......5....3.1.........5..4....2...3..
47.5.......1....6.......2.....853..4...17.......4.....9.6..2...........13.......5
49........7.....3......68.....631.......857.....7....4..8........5.9..1.....7....
5..............34.7....8.9....15...7....2.......784..1........5.23..9.....6......
5............3.97........3.....98...8..546..1...1......94.7.....3............5..6
5......2..........97..6.3....4231......45.........96.....1...4.6.......9.3.......
5...1......9...27.......3.....281.......95....3...79..........1.7...........4.5.8
5...9..........87..2..........7.2...24.15.......3.8....3......5.78..........1...4
5.1...4..8.....5.......2......1437...3..8...9...75....4...1............2.......3.
5.7...8....3...........2.6....4.3......71....7..85....8..5.............9.6.....23
56.......7......2......41....182..53....16......75......8...3...............7...6
6..............12....3...5....657.......8...7..34.1....3......4.72..........1...6
6............3.97........3....79....8..5....2...123....9........35..4........5..6
6.......37.....5.......48.....92...7....51......78.....4........8.2.........7.1.6
6.......8....3.97........3....79....8...4...2...123....9........3.9..........5..6
6.....3..8.............4.5....3.5.....21..6.....6781....4.....9...8.......9....2.
6..3............4..4.....97...274.8.1....5.......89....2........84............62.
6.1..............7......93.....12....5..83......76...1........8.32..9....4......6
61.3............48........9...2.4...1....57.....189....2........84....5.......6..
7.....8..9.............2..4..39......2.154......78.5.....8.............6.4.....32
7..1..8.............3..2......529.....23.6.......8.4.....8....7.......3...9....62
7..3....2.........4.....95....8.9......746....5..2............7.95........32....1
7..8.......9...56.......9.....129.......562...3...4.....6..5..4.........1.......7


if we get better programs or better methods we could modify this set up .... so lets see what the take up is ...
pm me if you have any questions !
coloin
 
Posts: 1790
Joined: 05 May 2005

Re: Using software to make 19C and 18C puzzles

Postby coloin » Sun Aug 11, 2019 10:09 am

UPDATE

here Mathemagics has provided links to his sofware to generate 19C puzzles.
This is x15 more efficient and only outputs unique grid solutions ....

But its a big project !!
coloin
 
Posts: 1790
Joined: 05 May 2005


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