Low-stepper Puzzles.

Everything about Sudoku that doesn't fit in one of the other sections

Postby Mauricio » Sun Feb 10, 2008 6:02 am

Type 0, 26 clues, non minimal, 2 stepper
Code: Select all
........1.....2.34..567........4.8...1.5..7...693..2..1...24..942..8....7...5..6.
........1.....2.34.45.67........43.7..2.....8.915..4....81...2.6......9.7.385....
........1.....2.34.45.67.......3...7.815...4.4.6.....9..91..2..6.....8..7.395....
........1.....2.34.45.67.......3...7.815...4.46......9..91..2..6.....8..7.395....
........1.....2.34.45.67.......34..7..2.....8.915..4....61...2.5......9.7.385....
........1.....2.34.45.67.......34..7..2.....8.915..4....81...2.5......9.7.385....
........1.....2.34.45.67.......34..7..2.....8.915..4....81...2.6......9.7.385....
........1.....2.34.45.67.......34..7..6.....8.915...4...81..2..6.....9..7.385....
........1.....2.34.45.67.......34..7..6.....8.915..4....81...2.5......9.7.385....
........1.....2.34.45.67.......34..7..6.....8.915..4....81...2.6......9.7.385....
........1.....234..35.67........37.4..2...8...915....3..81...2.6......9.7.485....
........1....1234..56..7........1..538..9....7.4....62...36.1..4.2.....88..9..7..
........1....1234..56.7.........1..538..9....7.4....62...36.1..4.2.....88..9..7..
........1....1234..56.7.......1....538..9....7.4....62...36.1..4.2.....88....47..
........1....1234..56.7.......1....538..9....7.4....62...36.1..4.2.....88..9..7..
........1....1234..56.7.......18...538.......7.4....62...36.1..4.2.....99..8..7..
........1..2..3.45..5.26........54.6.178..5...3......9.9.1...3.2......7.64.98....
.......12.....34.5.67.5.........46..28.......5.19..37....27...41.34..9..9..8.....
.......12.....34.5.67.5.......26...413...48..8..9........4..7..2.9......51.8..36.
.......12..3..4....5..678.9.....57.8.1......562.3.......79.3...3..28....9.....64.
.....1..2..3....4..5..63.7......4.361.8...9..7..3.2....9.28....2...7.1..64......9
.....1..2..3....4..5..63.7......4.361.83..9..7....2....9.28....2...7.1..64......9
Mauricio
 
Posts: 1174
Joined: 22 March 2006

Postby Mauricio » Sun Feb 10, 2008 7:10 am

Minimal, 23 clues, 3 stepper
Code: Select all
..............1.23456.....7.....8.....9.42...1.3...9.....7..5...6.5..1.4.829.....
........1.....1.23.45..6........74......3.8..271.........24.7...9..5....36..7...9
........1.....1.23.45..6.......7458...7.3....21..........25..9...8.4....3.6.....8
........1.....2.3..45.67.....18.5..4..4....63..71......5.....9.3..9..2..6......7.
........1.....2.34..2.56......1.47....8...6...357..8....1.......9.8.7...46......5
........1.....2.34..2.56......4.17....8...6...39.7.8.....83.....6......7153......
........1.....2.34..2.56......4.17....8...6...39.7.8.....83.....64......15......7
........1.....2.34..2.56......4.17....8...6...39.7.8.....83.....64.....715.......
........1.....2.34..2.56......4.17....8...6...397..8.....8......5....4.7164......
........1.....2.34..2.56......4.17....8...6...397..8....78......5....4.716.......
........1.....2.34..5.67.8....8.96....7...2..45.1........946....2.......1.8.....7
........1....23..4256..........5.67..8.....5.1..9........6.12..7.3..2.9.9....8...
........1..2..3..4..5.67.8.......5...1.8..96.43..7.......58.....46...2..2..1.....
.......12....13..4.56..........5.67..8.....5.2..9........6.21..7.3..1.9.9....8...
.......12..3..4....5..67........6..3..45.....832....9.....8.6...9....4..57.2..3..

Non minimal, 22 clues, 3 stepper
Code: Select all
........1.....2.34..2.56......4.17....8...6...93...8.....8.7....5..9...716.......
........1.....2.34..5.67......8..6...541..9....3....2....946....7.......18.....9.
........1.....2.34256............7....3.58.....4.2.69....4......8...7...51.6..9..

Minimal, 22 clues, 3 stepper:
Code: Select all
........1.....2.34..5.67......4.12....8...7...93...8.....8......6.9..4..17.....6.
........1.....2.34..2.56......4.17....8...6...93...8.....8......5.7..4..16.....5.
Mauricio
 
Posts: 1174
Joined: 22 March 2006

Postby JPF » Sun Feb 10, 2008 1:11 pm

Nice improvements Mauricio.

I have to go back into my old files to be back in the loop !

JPF
JPF
2017 Supporter
 
Posts: 3752
Joined: 06 December 2005
Location: Paris, France

Postby Mauricio » Mon Feb 11, 2008 2:04 am

25 clues, 2 stepper, non minimal
Code: Select all
..............1.23..4.567.......26.5.8....9..13..4......7.8.41..26.9.....5...3.8.
..............1.23..4.567.......26.5.8....9..13.4.......78..41..269......5...3.8.
..............1.23..4.567.......26.5.8....9..13.4.......78..41..269......5..3..8.
..............1.23..4.567......2.5.6.8....9..13.4.......78..41..259......6...3.8.
..............1.23..4.567......2.5.6.8....9..13.4.......78..41..259......6..3..8.
..............1.23..456.7......2.6.5.8....9..13.4.......78..41..269......5..3..8.
..............1234.56....78....38..5.4...6...72......1...74.1....9.5..2.8.3.....9
........1......234..2.56..7...3.8.1..47.....6.5...1....1.74.9..38....5..6...2....
........1......234..2.56..7...3.8.1..47....6..5...1....1.74.9..38....5..6...2....
........1......234..2.56..7...3.81...47.....6.5...1....1.74.9..38....5..6...2....
........1......234..2.56.7....3.8.1..47.....6.5...1....1.74.9..38....5..6...2....
........1......234..2.56.7....3.81...47.....6.5...1....1.74.9..38....5..6...2....
........1.....2.3...2456.......6.7.4.3..8...685...1.......9.82...1....5..4783....
........1.....2.3...4567.........85..1..93.4.2694.........4.2.7..3.....6.58.1....
........1.....2.3...4567.........85..1..93.4.2964.........4.2.7..3.....6.58.1....
........1.....2.3...4567.........85..1.4...7.267..3.......9.2.4..3.4...6.58.1....
........1.....2.3...4567.........85..19..3.4.26.49........4.2.7..3.....6.58.1....
........1.....2.3...4567.........85..3..9..4.269.4.......4..2.7..13....6.58.1....
........1.....2.3...4567.........85..3..9..4.2694.........4.2.7..13....6.58.1....
........1.....2.3...4567.........859.1..83.4.26.4.........4.2.7..3.....6.59.1....
........1.....2.3...4567.........859.1..93.4.26.4.........4.2.7..3.....6.58.1....
........1.....2.3...4567.........859.3..9..4.26..4.......4..2.7..13....6.58.1....
........1.....2.3...4567.........859.3..9..4.26.4.........4.2.7..13....6.58.1....
........1.....2.3...4567.........87..1..4..6.256.3.......9..2.4..34....5.781.....
........1.....2.3...4567.......4.2.5..3.....6.78.16.......9.87..1.3...9.26.4.....
........1.....2.3...4567.......4.2.5..3.....6.78.16.......9.87..1.4...9.26.3.....
........1.....2.3...4567.......4.2.5..3.1...64782.........9.87..1.....9.26.4.....
........1.....2.3...4567.......4.2.7..1..8..6.95.1.......78..5..3....98.26.4.....
........1.....2.3...4567.......4.2.7..1.3...5.681........9..86..3.....4.2594.....
........1.....2.3...4567.......4.2.7..1.3...5.681........9..86..3.....4925.4.....
I am using the good old technique of generating a few thousands puzzles with the required property and then doing a {-2+1} or {-1+0} and keeping those that satisfy the required property.
Mauricio
 
Posts: 1174
Joined: 22 March 2006

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