The New Sudoku Players' Forum

by **m_b_metcalf** » Tue Apr 21, 2026 5:21 pm

Code: Select all: .................1.....1.23.....2..4..5....3...6.3.5....75..6...1..2..48.4..8...2 # MIN 21 m_b_metcalf

Mike

by **m_b_metcalf** » Tue Apr 21, 2026 7:15 pm

Code: Select all: ..............1..2....3.451..1.6......6...178..9..56.4.18.265...65.438..934.58..6 # MIN 32 m_b_metcalf

Mike

by **coloin** » Tue Apr 21, 2026 8:13 pm

m_b_metcalf wrote:....Seems unlikely to be the last word....

I think its a long one... I spent a few weeks gradually improving which was strangely satisfying and also hard...
ive updated your results.... heres an example of the progression to a lower level ... by no means the minimum

Code: Select all: MIN20#.................1.....1..2..1.32..4.5...6...7..5...8...3.24...4......7.8...9.5..# MIN 20 * coloin MIN20#.................1.....1.23...........1..3....4..5.67...23.8....6.7.9.5..9....46.# MIN 20 MIN20#.................1.....1.23...........1.23..4.2.5..67...2.38...6...7..5.9.....4..# MIN 20 MIN20#.................1.....1.23...........1.23..4.5.6...7...2.38....4....59..9...7.6.# MIN 20 MIN20#.................1.....1.23...........1.23..4.5.6..78...2.39....4....5...7..8..6.# MIN 20 MIN20#.................1.....1.23...........1.4.5...4..5678...23.9....6....4...7.8...5.# MIN 20 * 1to9only

Showing the strangely rewarding progression

by **1to9only** » Tue Apr 21, 2026 10:44 pm

New from my list:

Code: Select all: .................1.....2.3......3.2...1.4......4.5..6..3......5.7.1....862.9..... # MIN 18 * 1to9only .................1.....2.3..............4...5..3..627...2..36...4..5...8.56.1...4 # MIN 19 * 1to9only .................1.....1.23.............4.567..1.23.8...2.38....5..6.....7....4.8 # MIN 20 * 1to9only .................1.....1.23......4....5..6317.31.8..52.62.78..5.97.13.6.3586.2... # MIN 30 * 1to9only .................1.....2.34..5...4.6.62.3.5.7.74..5.2..13.876...46..13..287.63..5 # MIN 31 * 1to9only .................1.....1234..2..5.....6.3.4.5.35.1.782.27.59..3.53..4..7614.735.. # MIN 32 * 1to9only ..............1.23.23.456....1..78...7...4.31358.1274...2.7....6.5..837.73..562.8 # MIN 35 * 1to9only ...........1..2.34.2314567...541..8...8.263.5.3...8.4...7.5486..5.8.14...8.26..5. # MIN 36 * 1to9only .....1..2..1.3.....4.....5......4.6..7.5.....8.....3....9.....4.5.7.....3...8.1.. # MAX 19 * 1to9only .....1..2..3.4..5..6.7..8....15..9...7...2.6.2....8.7...5.2...7.4.6...1.9.....3.. # MAX 25 * 1to9only .....1..2..3.4..5.15.3..6....7...5.1.6...4.3.8..2......8..2...52...8.47.9..6..... # MAX 26 * 1to9only .....1..2..3.4..5.15...6.....7.8931..3....2..8..1...7...94....83..95....54....7.. # MAX 27 * 1to9only .....1.23..1.4.5..267.5.........425..5.2..8..8.9.....4...7.6.8.61..3...27..4..3.. # MAX 29 * 1to9only .....1..2..134.....5....36.....785...79.6....58.....16..5.846376..7..1.88......4. # MAX 30 * 1to9only

by **m_b_metcalf** » Wed Apr 22, 2026 9:33 am

Code: Select all: .................1.....1.23......4....1..5367.36.8..12.52.78..6.97.13.5.3685.2... # MIN 30 * m_b_metcalf .................1.....1234..2..5.....4.3.1.5.35.6.782.27.59..3.53..6..7416.735.. # MIN 32 * m_b_metcalf ...........1..2.34.5234.1....6...7...13.7425..75....41..7.1.46..284.53.7.6..3.... # MIN 33 * m_b_metcalf

Mike

by **1to9only** » Wed Apr 22, 2026 11:14 am

to complete the list:

Code: Select all: .................1.....2.3......3.2...1.4......4.5..6..3......5.7.1....862.9..... # MIN 18 * 1to9only .................1.....2.3..............4...5..3..627...2..36...4..5...8.5..1..94 # MIN 19 * 1to9only .................1.....1.23.............4.567..1.23.8...2.38....5..6.....7....4.8 # MIN 20 * 1to9only .................1.....1.23......4....5..6317.31.8..52.62.78..5.97.13.6.3586.2... # MIN 30 * 1to9only .................1.....123...4....53.51.2..64.63..41...35..7..2.72.86..5186.52.4. # MIN 31 * 1to9only .................1.....1234..1.25673..2..8.45.5...3....27814.5..4..52..7.95.37..2 # MIN 32 * 1to9only ...........1..2.34.32.45.61.....4..3.6..7..185.3.8647...6..8.....8621.4..2..37.8. # MIN 33 * 1to9only ...........1.23.45.2456137......2.3..6..185..7.235.86...6....8...8.3.4.6.47.8..5. # MIN 34 * 1to9only ..............1.23.23.456......7....6.5..837.73..562.8..1..78..27...4.31358.1274. # MIN 35 * 1to9only ...........1..2.34.2314567...541..8...8.263.5.3...8.4...7.5486..5.8.14...8.26..5. # MIN 36 * 1to9only

Code: Select all: .....1..2..1.3.....4.....5......4.6..7.5.....8.....3....9.....4.5.7.....3...8.1.. # MAX 19 * 1to9only .....1..2..3.4..5..6.7..8....15..9...7...216.2....8.....5.2...7.4.6...1.9.....3.. # MAX 25 * 1to9only .....1..2..3.4..5.15.3..6....7...5.1.6...4.3.8..2......8..2...52...8.49.7..6..... # MAX 26 * 1to9only .....1..2..3.4..5.15...6.....7.8931..3....2..8..1...7...94....83..95....54....7.. # MAX 27 * 1to9only .....1.23..1.4.5..267.5.........425..5.2..8..8.9.....4...7.6.8.61..3...27..4..3.. # MAX 29 * 1to9only .....1..2..3...45.46..3.......1.7.232...89...9.7...1.....7....4.9.2..37.7.4.1.296 # MAX 30 * 1to9only ........1....23.4...5..62....3....7...47.18....7389....392.....451..792.7.29..51. # MAX 31 * 1to9only ........1......234...123567...23.65...5.8.....9376...2...5..426.64.127.57........ # MAX 32 * 1to9only ........1..2.1345.45..62..3.....7..8.7..86.4.8...35.67.47.218..2..3.8.7.5...7.... # MAX 33 * 1to9only ...........1.23.45.2456137...8.3.4.6.4..8..5.2.6....8..6..185...8...2.3.7.235..6. # MAX 34 * 1to9only ..........12.34.56.3562.471..74...18..8.6.7.5.2.8..64..7..8...4.8.3.7.6.1...4..8. # MAX 35 * 1to9only ..........12.34.56.3562.471..74...18..8.7.6.5.2.86.74..7..8...4.8.3.7.6.1...4..8. # MAX 36 * 1to9only ..........12.34.56.3562.471..3.46.8..7..8...4.8.3.7.6...74...18..8.7.6..52.86.74. # MAX 37 * 1to9only ..........12.34.56.3561.472..7.8...4..83.7.6..23.46.8..7.4.5.18.8..7.6..2..86.74. # MAX 38 * 1to9only

by **coloin** » Wed Apr 22, 2026 12:06 pm

That is great contributions !!
To save you some time many of the MAX above 26 start with ..1..2..3 as first line

Code: Select all: MAX27#..1..2..3.2..1..4.3..4..5....4..32...6..5..3.7..8....9..8..57...7..6..2.2..1....6#MAX 27 * coloin MAX30#..1..2..3.2..1..4.3..4..1....2..1..4.3..5..6.5..2..7...148..3..2.3.4..8.86...9..5#MAX 30 * coloin

In many ways the MAX is more difficult ....

by **m_b_metcalf** » Thu Apr 23, 2026 9:02 am

Code: Select all: .................1....12..3..12.4.56.3..5.2.725..78314..8.4....5.3....6861..85432 # MIN 33 * m_b_metcalf .................1...123..4..1.32.56.4.5..2.725.78.413..83.....1.4....6856.81.342 # MIN 34 * m_b_metcalf .................1...123..4..1.32.56.4.6..2.726.78.413..83.6...1.4....6865.81.342 # MIN 35 * m_b_metcalf .................1...123..4..23.1.56.4..6.3.736..78412..861.2..2.4....6865..82143 # MIN 36 * m_b_metcalf .................1...123..4..25.1.67.4..7.5.357..38412..871.2..2.4..5.7876..82145 # MIN 37 * m_b_metcalf .................1...234..5..2.46.17.5.7..6.367.38.542..84.72.62.5.6..7876.82.154 # MIN 38 * m_b_metcalf

Mike

by **1to9only** » Thu Apr 23, 2026 6:26 pm

Code: Select all: .................1.....1..2..1.3...4.5...6...7..5.8.9...3.24...4......7.9...8.5.. # MIN 20 * 1to9only .................1.....1..2..1..2..3..2..4.5...3.67..4.1.2.384..3487..1582.1.5.36 # MIN 30 * 1to9only .................1.....1.23..1..3..4..3..5.6...4.78..5.1.3.425..321.6.47.4528..16 # MIN 31 * 1to9only ..............1..2....34567..3..8.51.21.45..8.8..162.3..7.5..86..8..3.2..4..873.5 # MIN 33 * 1to9only .................1...123..4..2.41.56.4.26.7.376..38.1..5861.2.72.4..7.6867..8.145 # MIN 37 * 1to9only .................1...123..4..2.41.56.4..6.7.376..38.12.5861.2.72.4..7.6867..82145 # MIN 38 * 1to9only .....1..2..3....4..5..6........3.7....84...2.9.......1...8...3..7....6..1....2... # MAX 19 * 1to9only .....1..2..3....4..5..6........5.7....89.....2....7.1....2...8..7....6..1....3..9 # MAX 20 * 1to9only .....1..2..3....4..5.67........8...1..9..6.3.7..4..9...4...9.6.1.....8..6..5....7 # MAX 23 * 1to9only .....1..2..3.4..5.16.3.........7.8...36...4.74..6...2...5..86...7...5.4..9..2...5 # MAX 26 * 1to9only ..1..2..3.2..1..4.3..45.1....26..4..1...2..6.56...7..8..3..4..1.7..9..3.2..5..7.. # MAX 29 * 1to9only ..1..2..3.2..1..4.3..4..1....2..1..4.3..5.26.5..2..7....3.4..8..1.8..37.86...9..5 # MAX 30 * 1to9only ..1..2..3.2..1..4.3..4..1....2..1..413..5..6.5..2..7....48.53..2.3.4..8.86...9..5 # MAX 31 * 1to9only .....1..2..3..415.12..6.347.5....87.2.7.5....8..6....4.7.1.64..31.....6.4..39.7.. # MAX 32 * 1to9only ........1.12.34..563..51.2.....4756.....8.2.77...25.48.86.13...2....8...3..57..8. # MAX 33 * 1to9only ........1..2.1345..41.62..3.....7.48....8653.8...346.7.57.21.8.2..3.87..4...7.... # MAX 34 * 1to9only ..........12.34.56.3562.471..74...28..8.7.6.5.2.86.74..7......4.8.3.756.1......8. # MAX 35 * 1to9only

by **m_b_metcalf** » Thu Apr 23, 2026 8:46 pm

Code: Select all: .................1...123..4..2.41.56.4.26.7.367..38.1..5861.2.72.4..7.6876..8.145 # MIN 37 * m_b_metcalf

Mike

by **coloin** » Fri Apr 24, 2026 12:25 am

Maybe getting closer to the end here with this level !

Code: Select all: MAX30#..1..2..3.2..1.45.6..7...1...28..7...6...9.3.89..7...5..6.4...1.1...75..2..19..4.# MAX 30 * coloin MIN30#.................1.....1..2..1..2..3..2..3.45..3567....17.8..34.241...573.5.74.26# MIN 30 * coloin MAX20#.....1..2..3....4..5..6........7.1....2..4..64..3........5...8..71...3..6....9...# MAX 20 * coloin

by **m_b_metcalf** » Fri Apr 24, 2026 3:35 pm

Code: Select all: .................1.....1..2..1..2..3..2..3.45..3567....1428..36.261...573.5.76.14# MIN 31 * m_b_metcalf

Mike

by **1to9only** » Fri Apr 24, 2026 6:42 pm

Code: Select all: .................1.....1..2..1..2..3..2..3.4...3567..8.1592..3..24.1..673.67.4.15 # MIN 30 * 1to9only .................1.....1..2..1..2..3..2..3.45..3467..8.162.5.34.24.3..573.5.7..16 # MIN 31 * 1to9only .................1.....1..2..1..2..3..2..3.45..3567..8.162.5.34.24.3..573.5.74.16 # MIN 32 * 1to9only .................1.....1.23..1.3..4...42.5.67.7.4.8315.82153.7414.8.7.3.7....2..8 # MIN 33 * 1to9only .................1.....1.23..1.34.5...45.63.7..5217.48.62173.8515.6.8.3.8....2..6 # MIN 34 * 1to9only .................1....23..4..2..1.56.4..6.3.736..78412..86..2.5.24.3..6865..82143 # MIN 35 * 1to9only .................1....23..4..25.1.67.4..7.5.357..38412..871.2...24..5.7876..82145 # MIN 36 * 1to9only .................1...123..4..2.41.56.4..6.7.367..38.12.5861.2.72.4..7.6876..82145 # MIN 38 * 1to9only .....1..2..3....4..5..6........3.7....847....9.......1...8...3..7....6..1....2... # MAX 19 * 1to9only .....1..2..3....4..5..6........7.1....82...5.4.......9...4..5...1.8...3.7....9... # MAX 20 * 1to9only .....1..2..3....4..5.67.........67....4....8.9..21.....6..4...57..9..3..8.......1 # MAX 22 * 1to9only .....1..2..3....4..5.67........875.6..9....3.8..4......4..9..6.1.....8..7..5....9 # MAX 23 * 1to9only .....1..2..3.4..5.67.....1.....6..2..34...7..8..5....9..14.9....9.1....33....58.. # MAX 25 * 1to9only .....1..2..3.4..5.67....8.....1...26.6...54..8.9.....1..64..3...1.57....5...1..6. # MAX 26 * 1to9only ..1..2..3.2..3..4.3..1..5....2.643...7..8...61..2...7...8.1..9..1.4.98..9..8....5 # MAX 29 * 1to9only ..1..2..3.2..3..4.3..5..6....4..5.3..7..28.162..3..4.7..9.5.8...5.8....41....7.6. # MAX 30 * 1to9only ..1..2..3.2..3..4.3..1..25...63.1.7.71..8.6..8..76...9..89..5...9..1...41....8.9. # MAX 31 * 1to9only ..1..2..3.2..3..4.3..1..25...67..5...7..1...41....6.7..583.1.9.6..98...591..6.8.. # MAX 32 * 1to9only .....1..2....34156..4....3....1.63...15.47..86.2.....4.5...826128....5..7.15...83 # MAX 33 * 1to9only .......12....134....4..56.3...7...31..7.3425.35.12874..7..8....48.56..2.5..4..1.. # MAX 34 * 1to9only ........1....12.3....3.4.5...5....24.46.273858..4.316..6...854358....67.7..63...8 # MAX 35 * 1to9only ........1.......2.....13..4..45...36.356.71488...312.5.527.8413.7.15..8.48....5.7 # MAX 36 * 1to9only

by **coloin** » Fri Apr 24, 2026 8:00 pm

Code: Select all: MIN19#.................1.....1.23....4..5...6..7..2.84......1....3...5...8..6.9...6..4.# MIN 19 * coloin MIN20#.................1.....1..2..1.3...4..25...6...78..9...3...4....4..9..5..6....8..# MIN 20 * coloin MAX19#.....1..2..3....4..5..6........4.5....73.....2.....6.8...8...3..6....9..1....2...# MAX 19 * coloin MAX20#.....1..2..3....4..5..6........7.1....85.3...6.......9.7....8..1..9.....8....2.5.# MAX 20 * coloin

by **1to9only** » Fri Apr 24, 2026 9:29 pm

There are 2 extra entries in the 'State of Play' post:

Code: Select all: MAX31#..1..2..3.2..3..4.3..1..25...63.1.7.71..8.6..8..76...9..89..5...9..1...41....8.9.# MAX 31 * 1to9only MAX31#..1..2..3.2..1..4.3..4..1....2..1..413..5..6.5..2..7....48.53..2.3.4..8.86...9..5# MAX 31 * 1to9only <- to remove MIN36#.................1....23..4..25.1.67.4..7.5.357..38412..871.2...24..5.7876..82145# MIN 36 * 1to9only MIN36#.................1...123..4..23.1.56.4..6.3.736..78412..861.2..2.4....6865..82143# MIN 36 * m_b_metcalf <- to remove

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