happy 2020

For fans of Killer Sudoku, Samurai Sudoku and other variants

happy 2020

Postby Hajime » Tue Dec 31, 2019 2:52 pm

Image

Happy New Year and a Healthy 2020

Here is a puzzle with 30 normal Sudoku's, partial overlapping.
The 31th Sudoku is all over the place and connects all digits of "2020".
Overlapping areas are colored light-blue and the 31th explosion Sudoku is colored light-green.

Pretty difficult for a human solver; pretty easy for computer solvers.

SE is between 2.020 and 2.020 + 1/2.020

Hidden Text: Show
Code: Select all
Sudoku's are listed in reading order PER digit of "2020". The 31th Sudoku is the last line.

#31//D8/K4/R8/N24/d40/K40/r40/AE8/AL4/AS8/AD22/AT22/AD38/AL40/AT38/D64/K60/R64/N80/d96/K96/R96/AE64/AL60/AS64/AD78/AT78/AD94/AL96/AT94/F8,N-5
31..28...9....4..8........1....1....8..4.5.9615..9............7.6..8......123.6.9
..29.53.............6...8...8..1..5..1.5.9.7....8.4...96.7.2.85...153....7..9..3.
...12..755..9....27............5....85.6.2..1....7..533............6..8......95..
...........21945..7.......9...749...83.....95...358...5.......1..34719...........
..936.1.4.4..2............687..3....4..8.9..1....7...5.........5....3...79..85...
.4..........426....6.5.3.2....6.7....1.8.2.5..5..9..6...8...3.............62.95..
.....61......5..2.2............3..755..6.1..46...7................4....7...86..91
.7..3....9.......2..8..2........72..5...2..3...25........1..6.9.....3.1...5......
.8.6.4.1.....5..............2.5.8.4...1.4.8.....7.3...3...8...5...921....9.....2.
....4..5.4.......2...7..9....45......5..1...8.....45..2.8..9....6.4...........7..
......3.13..5.........8....2..9.3.8..9..5.23.6..8.2.1.....9....9..1....7......1.8
6.4...........7..1....4.....8.6.4..2.42.8..7..6.1.2..8....2....8....5..35.7......
......1.8.7..58.3....2..4....51...6.9...8..4......68....3..1...2......1..4..7....
.3.....5....736.......8.......4.1.....6.5.4...5.9.2.1..............1.....6.3.7.2.
5.7.......3.49..5...4..2....6...84...5..6...9..85........6..2...7......3....2..4.
9....5.6..1...........3.4.......43....1...9..6..3.1.....654....15...28...3.......
..8.7.4.....8.6...6..243..5...124.......6.................1........9......1...6..
.5.2....4.......8...4.5......76.......6...3.....9.4..2....239....91...78.......2.
...........6...7..7.......1...7.1....47.3.21....6.4...3.......8..2...1...........
.3.......64...58....146....8..2.6.....3...2.......94......2.5...8.....7.1....3...
..3..........9........6.................3.......249......527...7..9.4..1..9.1.5..
.......8...26...14....857.....7.9..8..7...4....94.......6.1.....1.....4....5....9
.....9.....9.7.1.6.7.45......8.6...1.579.....6....4....8..........8..2...........
....5.......329.....2...5...6.5.2.3...........1..8..4.............1.4.....72.89..
...8.....3.2.5.1......12.3.4...6.3.......759....2....1.......2...3..5............
....8..2............4.....8.6.9...7112...7....8.6...92..2.....3...1.4............
.3..5.............7.....9..28...6.1....8...2314...3.8.4.....2.....6.2............
............81.7...8.....3.3....7....693...7...4.6..1..3.48......5.3.1.......9...
..51.27.....8.3.............6..4..7...........4.9.8.2...3...6.....384.......6....
...........1.98....9.....1....5....4.4...638..2..4.7......84.2...4.5.9.....7.....
..........73..........6...8.62...8......................................3..4.....


Larger pictures with or without pencil marks are at
https://sites.google.com/site/sisesuso/examples/ny_2020
Last edited by Hajime on Tue Dec 31, 2019 9:16 pm, edited 1 time in total.
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Hajime
 
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Re: happy 2020

Postby creint » Tue Dec 31, 2019 8:48 pm

Hidden singles only, very easy.
In your pasting format: "F8,N-5,N-5" is maybe redundant, can you make it only "F8,N-5" just like previous puzzles?
Or is this a new format rows,columns?
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Re: happy 2020

Postby Hajime » Tue Dec 31, 2019 9:18 pm

 "F8,N-5,N-5" -->  "F8,N-5" done. Thanks creint.
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