Sudoku sensei4

For fans of Killer Sudoku, Samurai Sudoku and other variants

Sudoku sensei4

Postby urhegyi » Thu Jan 28, 2021 1:13 pm

I created this today:
SiSeSuSo_20210128_133715.png
SiSeSuSo_20210128_133715.png (11.73 KiB) Viewed 119 times

Needs hidden pair and xy-wing.
Code: Select all
..34..7.98..2..3...5..78........7.........4..28.93.............6...2..3.......... ED=4.2/1.2/1.2
..7.........4...5.93.....6.........9.2..3...........7......5.48......2....63..... ED=2.0/1.5/1.5
urhegyi
 
Posts: 362
Joined: 13 April 2020

Re: Sudoku sensei4

Postby urhegyi » Thu Jan 28, 2021 4:11 pm

Any Idea's to make overlapping sudoku with a windoku?
Image
urhegyi
 
Posts: 362
Joined: 13 April 2020

Re: Sudoku sensei4

Postby Hajime » Thu Jan 28, 2021 4:25 pm

urhegyi wrote:Any Idea's to make overlapping sudoku with a windoku?

Also with SiSeSuSo.
Same layout as your Sensei4 orTwin-4 and both Windoku. Note that the entier overlapping part is empty.
Code: Select all
#2/W/B4/E10
.6.........5....3.9...4.5....6................8..........................1.......
.......9..........................7................4....7.9...8.6....7.........2.

Only basic techniques needed.
Code: Select all
#2/W/B4/E10
.....2...53....2.1..2.31.....6..................................47...............
...............79..................................3.....48.9..7.8....43...2.....

Basic techniques and Generalized Intersection-methods needed.
User avatar
Hajime
 
Posts: 326
Joined: 20 April 2018
Location: Netherlands

Re: Sudoku sensei4

Postby urhegyi » Thu Jan 28, 2021 4:32 pm

Or another idea?
Image
urhegyi
 
Posts: 362
Joined: 13 April 2020

Re: Sudoku sensei4

Postby Hajime » Thu Jan 28, 2021 4:34 pm

And here the Sohei-1 layout, all Windoku:
Code: Select all
#4/W/H4/B16/N16/H28
1.......6..5...7...6.....3.....6..............1..8..2......................9.4...
.9..7.............3........65...2...........648...7...2..................3..8....
....5..1..................7...2...363...........4...21........3.............1..4.
...2.6......................1..4..2..............8.....9.....4...3...7..4.......8

Symmetrical and only very basic methods needed:
Code: Select all
Eliminated candidates per Method and per Sudoku

Method   \  Sudoku |   SER |     1     2     3     4
                   |-------|------------------------
Not counted elims  |     0 |   186   149   132   132
Naked Singles      |   0.1 |    41    30     9    23
Hidden Singles     |   0.2 |    66    80   155   125
Naked Pair    [2]  |     3 |     0    19     0    16
Locked Singles[2]  |   2.8 |    23    25    19    13
                   |-------|------------------------
Eliminated Cand's  |  1243 |   316   303   315   309
Sum(SER * Cand's)  | 424.5 |  81.7   146  85.1 111.7

Initial Candidates :  1243
Maximum SER rating :     3 - Approach
Labour rating      : 424.5 - Experimental rating

Sohei_W.JPG
Sohei_W.JPG (59.08 KiB) Viewed 96 times
User avatar
Hajime
 
Posts: 326
Joined: 20 April 2018
Location: Netherlands

Re: Sudoku sensei4

Postby urhegyi » Thu Jan 28, 2021 5:08 pm

Or the samurai-layout:
Code: Select all
#5/W/B4/N4/H16/B28/N28
...7....8..9...53..3.....7.6...8.9.....3.7.......4.....6.8......93......2........
8....5....26...3...7.....4...1.3...9...1.9.......6.........3.9.......57.........3
......................9...............8.5.4...............1......................
7.........93.......5.6.........9.......7.1...5...4.7...2.....1...7...65....4....3
........1......98......6.3.....9.......3.1.....2.6...9.9.....7..73...6..5....7...
urhegyi
 
Posts: 362
Joined: 13 April 2020

Re: Sudoku sensei4

Postby urhegyi » Sun Jan 31, 2021 4:31 pm

Or this sohei-1 layout:
Code: Select all
#4//H4,JS/B16,JS/N16,JS/H28,JS
.4.....6.1..849..53.1...2.6.5.7.2.1....1.5....3.2.6.8...2...5.....623............
112334444122344444112355666122357776112357676122357666888357999888357999888557999
..35....2.2..4.....6..8....4..9.7...9........2..8.5....4..9.....8..5......64....7
111111222113331222444433222445453666775453336875456666875556999877777999888888999
5....48......5..7.....9..8....6.9..5........9...2.1..7....1..5.....7..6.1....75..
999888888999777778999655578666654578633354577666354544222334444222133311222111111
............367.....7...1...6.1.5.3....4.2....9.6.3.1.3.9...4.16..971..3.1.....6.
999755888999753888999753888666753221676753211677753221666553211444443221444433211

singles only
Image
Or thisone which needs a few skyscrapers:
Code: Select all
#4//H4,JS/B16,JS/N16,JS/H28,JS
..73.18..1.......5..1...2......6..............39...18.....9........2.............
112334444122344444112355666122357776112357676122357666888357999888357999888557999
...5.......9..........8....43......8...1.....21......9....9......2.........4.....
111111222113331222444433222445453666775453336875456666875556999877777999888888999
.....4.........2......9....2......45.....8...9......37....1..........9.......7...
999888888999777778999655578666654578633354577666354544222334444222133311222111111
.............6........9.....62...93..............2......9...4..6.......3..38.92..
999755888999753888999753888666753221676753211677753221666553211444443221444433211

Example which needs some fish(x-wing/swordfish/jellyfish):
Code: Select all
#4//H4,JS/B16,JS/N16,JS/H28,JS
9.7...8.2............9.4...85..6..13..8...7...3.....8.............6.3............
112334444122344444112355666122357776112357676122357666888357999888357999888557999
1...74.....................4.59..............2.48.......................8...19...
111111222113331222444433222445453666775453336875456666875556999877777999888888999
...76...2.......................97.5..............16.7.....................93...8
999888888999777778999655578666654578633354577666354544222334444222133311222111111
............3.7.............6.....3...5...6..49..2..15...7.6............5.3...2.7
999755888999753888999753888666753221676753211677753221666553211444443221444433211
urhegyi
 
Posts: 362
Joined: 13 April 2020

Re: Sudoku sensei4

Postby urhegyi » Tue Feb 02, 2021 2:15 am

Tried my sohei solution generator:
Image
And a very-hard example:
Code: Select all
#4//H4,JS/B16,JS/N16,JS/H28,JS
..5...6..3...7...1..3.6.8...7.....8....4.1....1.2.9.4.......................9....
112334444122344444112355666122357776112357676122357666888357999888357999888557999
............68.......4.........1...2.56..........4...5...8........39.............
111111222113331222444433222445453666775453336875456666875556999877777999888888999
.............73........1...7...8..........71.9...6.........7.......54............
999888888999777778999655578666654578633354577666354544222334444222133311222111111
....1.......................5.8.1.6....2.3....3.....2...2.7.8..2...4...8..5...1..
999755888999753888999753888666753221676753211677753221666553211444443221444433211
urhegyi
 
Posts: 362
Joined: 13 April 2020


Return to Sudoku variants