The New Sudoku Players' Forum

by **m_b_metcalf** » Fri Nov 30, 2018 10:30 am

Code: Select all: 4 1 . . . 7 . . 2 3 . . . . 6 . 7 9 . . . 3 2 . . 1 . . . 2 . . . . 3 . . . 1 . . . 6 . . 7 4 . . . . 2 . . . . . . 7 9 . . . . 6 7 8 . . . . . 9 8 . . . . . . . Nice X-sudoku, pattern 333

by **1to9only** » Tue Dec 18, 2018 1:55 pm

submitted:
94...2..16....1.85...87..6...1....9...4...6..83....2......16....254.....41....... ED=5.3/1.2/1.2
normalised:
12...3..45....4.67...68..5...4....1...2...5..69....3......45....372.....24....... ED=5.3/1.2/1.2

2 isomorphs:
12...3..44....5.67...74..8...3....4...5...7..87....2......28....321.....76....... ED=5.3/1.2/1.2
12...3..44....5.67...74..8...3....4...9...7..67....2......26....321.....78....... ED=5.3/1.2/1.2

by **m_b_metcalf** » Tue Jan 01, 2019 2:19 pm

Code: Select all: . . . . . . . . . . . 8 . 1 . 7 . . . 6 . 7 . 4 . 9 . . . 5 4 . . 8 . . . 3 . . . 8 . 7 . . . 1 . 7 . 6 . . . 9 . 5 . 6 . 4 . . . 6 . 9 . 5 . . Rather easy x-sudoku, PG 336 . . . . . . . . .

by **m_b_metcalf** » Sat Feb 23, 2019 8:40 am

Code: Select all: . . 9 6 . . . 7 . . . . . 2 . 9 . . 3 . . . . 4 . . 5 1 . . 3 . . . . 9 . 3 . . 4 . 7 . . . . 7 . . . . 3 . . 7 . . 3 . . . . 8 . . . . 6 . 5 . . . 1 2 . . . . 7 X-sudoku, really quite tricky, PG 340

by **m_b_metcalf** » Thu Mar 21, 2019 4:55 pm

Code: Select all: . . 9 8 4 . . . . . 2 . . . . 8 . . . 1 . . . 6 . 3 . . . 4 6 . . 9 . . . . . . 8 . . . . . . 1 . . 4 5 . . . 7 . 5 . . . 4 . . . 8 . . . . 7 . . . . . 7 8 3 . . X-sudoku, another really quite tricky one, PG 343

by **m_b_metcalf** » Sat Mar 30, 2019 9:04 am

Code: Select all: . 6 . 1 . . . . 2 . . . . 2 . . 8 . . . 2 . . . 1 . . . 1 . . . 3 . . . . . 3 . . . . 9 . 2 . . 6 . . . . 5 . . . . 1 . 9 . . 4 . . . . 7 . . 8 . 2 . 8 . . . . . X-sudoku, not very hard, PG 344

by **m_b_metcalf** » Tue Jun 18, 2019 12:38 pm

Code: Select all: . . . . . 5 . . 6 . . 3 . 2 . 8 . . . 2 . 3 . . . 5 . . . 9 8 . . . 6 . 2 . . . 5 . . . 1 . 6 . . . 1 4 . . . 5 . . . 7 . 8 . . . 2 . 6 . 7 . . 8 . . 5 . . . . . Jolly little X-sudoku, Pattern 353

by **m_b_metcalf** » Fri Jul 05, 2019 10:26 am

Code: Select all: . . . . . . . . . . . 3 . 9 . 8 . . . 6 . 8 . 2 . 3 . . . 9 2 . . 4 . . . 7 . . . 5 . 9 . . . 6 . 3 . 5 . . . 9 . 1 . 8 . 2 . . . 1 . 5 . 7 . . . . . . . . . . 1 A tricky little x-sudoku, PG 354.

by **m_b_metcalf** » Fri Jul 12, 2019 11:25 am

Code: Select all: 4 . . . . 3 1 . . . 8 . . 1 . . . 3 . . 1 7 . . . 8 . . . 6 . 3 . . . . . . . 9 . 4 . . . . . . . 8 . 9 . . . 6 . . . 8 2 . . 1 . . . 9 . . 3 . . . 5 3 . . . . 9 X-sudoku, very hard, PG 355.

by **m_b_metcalf** » Sun Sep 08, 2019 1:44 pm

Code: Select all: . . 8 7 . . . . . . . 3 6 . . . . . 5 1 7 3 . . . . . 8 3 1 . . . . . . . . . . . . . . . . . . . . . 9 8 4 . . . . . 8 1 5 9 X-sudoku for PG 360 . . . . . 6 3 . . . . . . . 7 6 . .

Seems a lousy pattern for the game, but gives nice x-sudokus

by **m_b_metcalf** » Tue Jan 21, 2020 6:53 pm

Code: Select all: . . . . . . . . . . . 9 . 7 . 3 . . . 8 . 3 . 2 . 9 . . . 3 6 . . 4 . . . 5 . . . 4 . 3 . . . 2 . 5 . . . 7 . 4 . 5 . . . 6 . . . 5 . 4 . 1 . . . . . . . 7 . . . X-sudoku for PG 371, not really hard, but quite tricky.

by **m_b_metcalf** » Tue May 12, 2020 9:36 am

Code: Select all: 1 . . . . 2 3 . . . 4 . . 5 . . 6 . . . 6 7 . . . . 8 . . 3 . 4 8 . . . . 8 . 6 . . . 3 . 6 . . 3 . . 8 . . 8 . . . . 6 . . 9 . 5 . . 7 . . 8 . . . 1 . . . 7 . . 1 . . . . 2 3 . . . 3 . . 4 . . 5 . . . 5 6 . . . . 7 . . 8 . 3 7 . . . . 7 . 5 . . . 8 . 5 . . 1 . . 7 . . 7 . . . . 5 . . 6 . 4 . . 6 . . 7 . . . 1 . . . 2 . . X-sudokus for PG 384, quite fishy.

by **1to9only** » Wed Aug 12, 2020 10:17 am

Code: Select all: 1....2....3..4..5...67..3....8..4..1.5.....9.7.....2..2....68......1..7...35....4 ED=8.4/6.7/3.4 XED=7.2/1.5/1.5 1....2....3..1..4...53..6....7..1..2.1.....5.8.....3..2....39......6..8...48....7 ED=8.3/2.8/2.8 XED=5.5/1.2/1.2 1....2....3..4..5...26..7....1..8..6.4.....1.5.....3..7....19......5..7...63....8 ED=8.3/6.7/3.4 XED=4.0/1.5/1.5 1....2....3..1..4...56..7....8..5..6.4.....2.9.....4..7....18......2..9...68....4 ED=9.0/9.0/3.2 XED=4.0/1.2/1.2 1....2....3..4..1...56..7....4..8..6.2.....7.9.....1..6....52......9..8...73....4 ED=9.1/8.8/3.4 XED=3.8/1.5/1.5 1....2....3..4..5...67..3....8..1..2.5.....6.4.....9..3....64......9..7...25....8 ED=9.0/6.7/6.7 XED=3.6/1.5/1.5 1....2....3..4..5...65..7....4..1..3.1.....8.3.....2..6....94......8..7...27....9 ED=8.4/2.0/2.0 XED=3.6/1.2/1.2 1....2....3..4..5...63..7....8..9..2.4.....3.5.....6..7....58......1..7...26....9 ED=9.0/9.0/3.0 XED=3.0/1.5/1.5 1....2....3..4..5...53..6....1..7..2.8.....3.4.....5..9....14......8..9...26....7 ED=9.2/9.2/6.7 XED=2.9/1.5/1.5 1....2....3..4..5...65..4....4..7..6.8.....3.9.....8..2....19......5..7...72....4 ED=4.2/1.2/1.2 XED=2.9/1.2/1.2 1....2....3..4..5...46..7....2..1..3.1.....8.5.....9..4....52......2..7...19....6 ED=4.6/3.6/3.6 XED=2.5/1.5/1.5 1....2....3..4..5...61..3....5..7..6.6.....1.8.....4..9....67......7..2...45....8 ED=3.6/3.6/3.6 XED=2.5/1.2/1.2 1....2....3..4..5...25..6....7..1..3.1.....2.4.....7..7....38......5..6...68....4 ED=8.5/2.5/2.5 XED=2.3/1.2/1.2 1....2....3..4..5...61..7....8..3..6.4.....1.5.....2..7....59......6..7...23....8 ED=7.3/7.3/6.7 XED=2.0/1.5/1.5 1....2....3..1..4...56..7....6..1..5.2.....3.8.....6..4....32......9..6...85....9 ED=8.9/8.9/8.2 XED=2.0/1.2/1.2 1....2....3..4..5...67..3....5..8..6.2.....3.8.....7..7....69......1..8...85....4 ED=7.3/7.3/3.4 XED=1.7/1.5/1.5 1....2....2..3..4...54..3....6..7..5.1.....8.9.....6..6....57......8..3...76....4 ED=3.0/1.2/1.2 XED=1.7/1.2/1.2 1....2....3..4..5...67..3....5..4..6.2.....8.7.....1..9....32......5..9...86....4 ED=8.3/8.3/6.7 XED=1.5/1.5/1.5 1....2....3..4..5...26..7....8..1..3.1.....4.5.....9..6....58......2..7...47....9 ED=3.6/3.6/3.6 XED=1.5/1.2/1.2 1....2....3..4..5...67..3....5..1..6.8.....9.3.....7..7....68......1..2...93....4 ED=1.2/1.2/1.2 XED=1.2/1.2/1.2

ED rating from SudokuExplainer, XED rating from SukakuExplainer (Diagonals variant).

by **m_b_metcalf** » Mon Aug 17, 2020 10:03 am

A really nice X-sudoku for human solvers, based on the PG 393 pattern, is attached.

Code: Select all: . . 1 2 . . . . . . 3 . . 4 . . . . 2 . . . . 5 3 . . 6 . . 7 . . 4 . . . 5 . . . . . 8 . . . 7 . . 1 . . 9 . . 5 9 . . 8 . . . . . . 7 . . . 4 . . . . . 8 . 3 .

Regards,

Mike Metcalf

by **m_b_metcalf** » Thu Feb 11, 2021 2:04 pm

It's hard to generate hard X-sudokus with 27 clues, but here's a variety of puzzles using the pattern 410 for aficionados to try:

Hidden Text: Show

Code: Select all: 1...2..3..4.1....5..2..46...5.6....27....54....6.3..5...7.6.5..2....8..6.6.7...8. ED=1.2/1.2/1.2 1...2..3..4.3....5..2..56...5.6....27....84....6.4..5...7.6.5..2....9..6.6.7...4. ED=1.5/1.2/1.2 1...2..3..4.3....5..2..46...5.7....28....57....7.4..5...8.7.5..2....6..7.7.8...4. ED=1.5/1.5/1.5 1...2..3..4.5....6..2..47...8.7....29....84....7.4..8...3.7.8..2....6..7.7.3...4. ED=1.7/1.2/1.2 1...2..3..4.5....6..2..47...5.7....28....64....7.4..9...8.7.6..2....5..7.7.8...4. ED=2.0/1.2/1.2 1...2..3..4.3....5..2..16...7.6....28....54....6.4..5...9.6.5..2....7..6.6.8...4. ED=2.3/1.2/1.2 1...2..3..4.3....5..2..67...6.7....28....54....9.4..5...8.7.5..2....9..7.7.8...4. ED=2.5/1.2/1.2 1...2..3..4.3....5..6..47...8.7....65....84....7.4..8...3.7.8..6....9..7.7.5...4. ED=2.9/1.2/1.2 1...2..3..4.5....6..2..47...8.7....29....64....7.4..6...9.7.6..4....8..7.7.9...4. ED=3.0/1.2/1.2 1...2..3..4.5....6..2..47...1.7....23....64....7.4..6...8.7.6..2....9..7.7.8...4. ED=3.2/1.2/1.2 1...2..3..4.5....6..2..47...6.7....85....64....7.4..6...5.7.6..2....8..7.7.1...4. ED=3.4/1.2/1.2 1...2..3..4.3....5..2..46...7.6....38....54....6.4..5...8.6.5..2....9..6.6.8...1. ED=3.6/1.2/1.2 1...2..3..4.3....5..2..46...5.6....78....59....6.4..5...4.6.5..2....7..6.6.8...4. ED=3.8/1.2/1.2 1...2..3..4.3....5..2..46...5.6....77....54....6.4..5...7.6.5..4....8..6.6.7...4. ED=4.0/1.2/1.2 1...2..3..4.5....6..2..47...8.7....29....68....7.4..6...9.7.6..2....5..7.7.9...4. ED=4.1/1.2/1.2 1...2..3..4.5....6..2..47...8.7....26....84....7.4..8...6.7.8..2....5..7.7.6...4. ED=4.2/1.2/1.2 1...2..3..4.3....5..2..46...2.6....17....84....6.4..8...7.6.8..2....5..6.6.7...4. ED=4.3/1.2/1.2 1...2..3..4.3....5..2..46...3.6....27....54....6.4..5...7.6.5..8....3..6.6.7...4. ED=4.4/1.2/1.2 1...2..3..4.3....5..2..46...7.6....38....54....6.4..5...1.6.5..2....9..6.6.8...4. ED=4.5/1.2/1.2 1...2..3..4.3....5..2..67...5.7....28....54....7.4..5...8.7.5..4....9..7.7.8...4. ED=5.4/1.2/1.2 1...2..3..4.1....5..2..46...5.6....27....54....6.4..5...7.6.5..8....9..6.6.7...4. ED=5.5/1.2/1.2 1...2..3..4.3....5..2..46...5.6....78....54....6.4..5...8.6.5..2....1..6.6.2...4. ED=5.6/1.2/1.2 1...2..3..4.1....5..2..46...5.6....27....54....6.4..5...3.6.5..4....8..6.6.7...4. ED=5.7/1.2/1.2 1...2..3..4.3....5..2..56...5.6....27....24....6.4..5...7.6.5..4....8..6.6.7...4. ED=6.1/1.2/1.2 1...2..3..4.5....6..2..47...5.7....28....54....7.4..5...8.7.5..2....9..7.7.8...4. ED=6.3/1.2/1.2 1...2..3..4.5....6..2..47...8.7....26....84....7.4..8...9.7.8..2....5..7.7.9...4. ED=6.4/1.2/1.2 1...2..3..4.3....5..2..46...7.6....28....54....6.4..5...9.6.5..2....7..6.6.8...4. ED=6.6/1.2/1.2 1...2..3..4.5....6..2..47...6.7....18....64....7.4..6...9.7.6..2....5..7.7.9...4. ED=6.8/1.2/1.2 1...2..3..4.3....5..6..47...5.7....88....54....7.4..5...8.7.5..6....1..7.7.8...4. ED=7.1/1.2/1.2 1...2..3..4.3....5..3..46...5.6....78....54....6.4..5...8.6.5..7....1..6.6.8...4. ED=7.2/1.2/1.2 1...2..3..4.3....5..2..46...7.6....25....84....6.4..5...8.6.5..2....7..6.6.8...4. ED=7.3/1.2/1.2 1...2..3..4.3....5..6..47...5.7....62....54....7.4..5...8.7.5..6....3..7.7.2...4. ED=7.5/1.2/1.2 1...2..3..4.3....5..3..46...5.6....27....54....6.4..5...7.6.5..4....8..6.6.7...4. ED=7.6/1.2/1.2 1...2..3..4.1....5..2..46...3.6....27....54....8.4..5...7.6.5..2....9..6.6.7...4. ED=7.7/1.2/1.2 1...2..3..4.3....5..6..47...5.7....89....54....7.4..5...9.7.5..2....1..7.7.9...4. ED=7.8/1.2/1.2 1...2..3..4.5....6..2..47...2.7....38....64....7.4..6...8.7.6..2....3..7.7.8...4. ED=7.9/1.2/1.2 1...2..3..4.3....1..2..45...6.5....27....64....5.4..1...7.5.6..2....8..5.5.7...4. ED=8.0/1.2/1.2 1...2..3..4.5....6..2..47...6.7....25....64....7.4..6...5.7.6..2....8..7.7.1...4. ED=8.1/1.2/1.2 1...2..3..4.3....5..2..46...5.6....27....54....6.4..5...7.6.5..2....1..6.6.8...4. ED=8.3/1.2/1.2 1...2..3..4.3....5..2..46...5.6....27....54....6.4..5...8.6.5..2....1..6.6.8...4. ED=8.4/1.2/1.2 1...2..3..4.3....5..3..46...5.6....78....54....6.4..5...8.6.5..4....7..6.6.8...4. ED=8.5/1.2/1.2 1...2..3..4.3....5..2..46...5.6....33....54....6.4..5...3.6.5..2....7..6.6.8...4. ED=8.9/1.2/1.2 1...2..3..4.3....5..2..46...5.6....27....54....6.4..5...7.6.5..4....8..6.6.7...4. ED=9.0/1.2/1.2 1...2..3..4.3....1..2..45...1.5....26....14....5.4..1...1.5.7..2....8..5.5.6...4. ED=9.2/1.2/1.2

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