The New Sudoku Players' Forum

by **urhegyi** » Wed Mar 03, 2021 8:41 pm

Graphical representation of last posted example:

Code: Select all: #5/WX/B4,JS/N4,JS/H16,JS/B28,JS/N28,JS ...4.............2...7....96...4.........................................8.9..... 111222233111222333111622333666644453664444555766445555778885999777888999777888999 .....2...8........5....6.......9...2.........................................4.5. 777766111777666111778646111888446622888444222885544222999554332999555333999553333 ................................................................................. 111222333111242333111242333552246666555444666555547766888747999888747999888777999 .3.1.........................................6...9.......4....3........2...6..... 333355999333555999233455999222445588222444888226644888111646877111666777111667777 .....7.2.........................................5...67....4...8.............6... 999888777999888777999588877555544667555444466354446666333226111333222111332222111

by **urhegyi** » Fri Mar 05, 2021 11:08 am

A few more variations on the H-layout.

Code: Select all: #1/WX/B4,JS ...4.2............85.....626.......5.........2.......939.....27............2.1... 555881111558888811555981117353989777333999777333969747322269444226666644222266444

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 118 Naked Singles | 0.1 | 40 Hidden Singles | 0.2 | 84 Naked Pair [2] | 3 | 3 Naked Quad [4] | 5 | 2 Pointing/Claiming | 2.8 | 37 Locked Singles[3] | 2.9 | 32 Locked Singles[4] | 3 | 7 Turbot-fish [4] | 4.2 | 5 |-------|------ Eliminated Cand's | 328 | 328 Sum(SER * Cand's) | 278.2 | 278.2 Initial Candidates : 328 Maximum SER rating : 5 <- Approach Labour rating : 278.2 <- Experimental rating Time needed : 00:00:01.660

Code: Select all: #1/WX/B4,JS ....9......5...4..............187...............529..............3...1......4.... 666633888666333888463339818464939811444999111447929151747922251777222555777225555

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 87 Naked Singles | 0.1 | 22 Hidden Singles | 0.2 | 158 Naked Pair [2] | 3 | 2 Hidden Quad [5] | 5.4 | 6 Pointing/Claiming | 2.8 | 69 Locked Singles[3] | 2.9 | 18 Locked Singles[4] | 3 | 20 Locked Singles[5] | 3.1 | 5 WXYZ Wing [4] | 5.5 | 1 |-------|------ Eliminated Cand's | 388 | 388 Sum(SER * Cand's) | 398.6 | 398.6 Initial Candidates : 388 Maximum SER rating : 5.5 <- Approach Labour rating : 398.6 <- Experimental rating Time needed : 00:00:02.210

by **urhegyi** » Fri Mar 05, 2021 12:14 pm

A samurai JSWX on the variated H-layout:

Code: Select all: #5/WX/B4,JS/N4,JS/H16,JS/B28,JS/N28,JS ......5...........53.......................1.....21....593.....8.............8... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 ..4......................84..........9..........49.........951.........8...7..... 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ....5......................3.......5.........5.......3......................3.... 111222333111242333111242333552246666555444666555547766888747999888747999888777999 .....6...8.........675.........57..........2..........95......................5.. 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ...2.............2.....345....59.....7.......................26...........6...... 777788999777888999778888999222444433222243333224444333111555566111555666111556666

by **creint** » Fri Mar 05, 2021 12:51 pm

1to9only wrote:SE is slow and clunky, left comp running overnight, took a number of hours to rate this!!
Code: Select all
......................29....4...8...............7...3....65...................... JSWX 8 ED=20.0/0.0/2.9 -> final rating ED=12.6/11.4/2.9 111123333111222333112222233444556666445555566444455666778888899777888999777789999

My solver solves it in 20 seconds with forcing nets (+40 seconds if slow redundant fish finder is included)
Rating should be lower than SE 10.

by **urhegyi** » Fri Mar 05, 2021 1:44 pm

A harder one:

Code: Select all: #5/WX/B4,JS/N4,JS/H16,JS/B28,JS/N28,JS ..14......2.....1....1.5..........2.......3..4......5.....2...................... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .....28...9.....2....6.4....5.........6.......3......6....4...................... 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. 111222333111242333111242333552246666555444666555547766888747999888747999888777999 ......................1....7......4.......5.........2....2.8....7.....6...17..... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ......................6.....1......3..9.......8..........1.6....9.....8......35.. 777788999777888999778888999222444433222243333224444333111555566111555666111556666

Analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 2 3 4 5 |-------|------------------------------ Not counted elims | 0 | 157 200 155 87 167 Naked Singles | 0.1 | 47 40 22 9 16 Hidden Singles | 0.2 | 117 90 169 143 138 Naked Single [1] | 2.5 | 5 0 28 9 0 Naked Pair [2] | 3 | 0 0 12 9 0 Naked Triple [3] | 3.6 | 6 0 4 2 0 Naked Quad [4] | 5 | 9 0 2 7 0 Hidden Quad [5] | 5.4 | 9 0 5 0 0 Hidden Triple [6] | 4 | 0 0 4 15 0 Hidden Pair [7] | 3.4 | 4 0 0 0 0 Pointing/Claiming | 2.8 | 20 37 77 51 14 Locked Singles[3] | 2.9 | 17 3 27 15 9 Locked Singles[4] | 3 | 15 7 32 11 23 Locked Singles[5] | 3.1 | 6 0 12 5 6 WXYZ Wing [4] | 5.5 | 0 0 0 3 0 UVWXYZ Wing [6] | 6.6 | 0 0 0 2 0 TUVWXYZ Wing [7] | 7.5 | 0 0 0 1 0 Turbot-fish [4] | 4.2 | 1 1 3 4 0 |-------|------------------------------ Eliminated Cand's | 2089 | 413 378 552 373 373 Sum(SER * Cand's) |1803.2 | 342.5 159.5 649.1 470 182.1 Initial Candidates : 2089 Maximum SER rating : 7.5 <- Approach Labour rating :1803.2 <- Experimental rating Time needed : 00:00:17.915

by **creint** » Fri Mar 05, 2021 4:25 pm

A harder one (same solution), still not minimal:

Code: Select all: #5/WX/B4,JS/N4,JS/H16,JS/B28,JS/N28,JS ..14......2..........1.5..........2.......3.........5.....2...................... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .....28.........2....6.4....5.........6.......3...........4...................... 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. 111222333111242333111242333552246666555444666555547766888747999888747999888777999 ......................1...........4.......5.........2....2.8....7.........17..... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ......................6.....1.........9.......8..........1.6..........8......35.. 777788999777888999778888999222444433222243333224444333111555566111555666111556666

And here one minimal, not symmetric.

Code: Select all: #5/WX/B4,JS/N4,JS/H16,JS/B28,JS/N28,JS ..1..................1.5..........2.......3.........5.....2...................... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .....28................4....5.........6.......................................... 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. 111222333111242333111242333552246666555444666555547766888747999888747999888777999 ..................................4.................2....2.8..............17..... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ......................6.....1.........................................8......35.. 777788999777888999778888999222444433222243333224444333111555566111555666111556666

by **urhegyi** » Sat Mar 06, 2021 3:11 pm

A JSWX with turbot-fish and xy-wings:

Code: Select all: #1/WX/B4,JS ...4.2......................1.....9.83.....65.2.....7......................9.4... 111122233111122233441225333444425533444555666775586666777588966778889999778889999

analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 128 Naked Singles | 0.1 | 54 Hidden Singles | 0.2 | 75 Naked Single [1] | 2.5 | 3 Naked Pair [2] | 3 | 5 Naked Triple [3] | 3.6 | 6 Naked Quad [4] | 5 | 6 Hidden Quad [5] | 5.4 | 4 Hidden Triple [6] | 4 | 8 Pointing/Claiming | 2.8 | 58 Locked Singles[3] | 2.9 | 20 Locked Singles[4] | 3 | 12 Turbot-fish [4] | 4.2 | 6 XY-Wing [3] | 4.1 | 6 |-------|------ Eliminated Cand's | 391 | 391 Sum(SER * Cand's) | 454.3 | 454.3 Initial Candidates : 391 Maximum SER rating : 5.4 <- Approach Labour rating : 454.3 <- Experimental rating Time needed : 00:00:03.246

by **urhegyi** » Sun Mar 07, 2021 7:22 pm

A JSWX with a lot of turbot-fish:

Code: Select all: #1/WX/B4,JS ..5.6.2.....5.2................3.................8................6.1.....6.9.7.. 111334444113333444111334488221535888225555588222575988226677999666777799666677999

Analyze log:

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 |-------|------ Not counted elims | 0 | 115 Naked Singles | 0.1 | 50 Hidden Singles | 0.2 | 90 Naked Pair [2] | 3 | 5 Naked Triple [3] | 3.6 | 4 Hidden Quad [5] | 5.4 | 11 Pointing/Claiming | 2.8 | 109 Locked Singles[3] | 2.9 | 9 Locked Singles[4] | 3 | 8 Locked Singles[5] | 3.1 | 5 Turbot-fish [4] | 4.2 | 16 |-------|------ Eliminated Cand's | 422 | 422 Sum(SER * Cand's) | 549.8 | 549.8 Initial Candidates : 422 Maximum SER rating : 5.4 <- Approach Labour rating : 549.8 <- Experimental rating Time needed : 00:00:02.008

solution:

Hidden Text: Show

by **Hajime** » Tue Mar 09, 2021 5:07 pm

A Kazagurama (Windmill) with the same layout as the "A samurai JSWX on the variated H-layout" above, except that the middle grid is WX but not JS.
An image of the easy puzzle and "Singles-Only" solvable:

An image of above puzzle with pencil marks, press the link:
https://www.dropbox.com/s/80fm4p158a2468e/Kazagurama_WXJS_easy_pm.JPG?dl=0
In code:

Code: Select all: #5/WX/E6,JS/N12,JS/H18/B24,JS/K30,JS .9.................4...1..7..........27........................462......3........ 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .......9..........9..5...7................58......................4..918........4 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. 6........428..5......................86................6...2..8..........4....... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ........3......915........................64..........1..4...5.................9. 777788999777888999778888999222444433222243333224444333111555566111555666111556666

The next is a medium one that needs Naked/Hidden Subsets, Pointing/Claiming, Locked Singles and Turbot fishes:
SER about 5.4.

Code: Select all: #5/WX/E6,JS/N12,JS/H18/B24,JS/K30,JS .......5......2......6....7........3427........................3.2.......5....... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .5..........5..........4.7..................7..........................9.......4. 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. .5.......32.........................2....................3.2........8..........2. 111222777111222777111422877555424887555444888655434888665334999666333999666333999 .......9.........1..........................53.............6......5......2....... 777788999777888999778888999222444433222243333224444333111555566111555666111556666

Code: Select all: Eliminated candidates per Method and per Sudoku Method \ Sudoku | SER | 1 2 3 4 5 |-------|------------------------------ Not counted elims | 0 | 116 209 122 147 191 Naked Singles | 0.1 | 24 25 2 42 49 Hidden Singles | 0.2 | 198 172 191 85 52 Naked Single [1] | 2.5 | 0 0 0 12 12 Naked Pair [2] | 3 | 0 0 0 14 19 Naked Triple [3] | 3.6 | 0 0 0 14 6 Naked Quad [4] | 5 | 0 0 0 12 16 Hidden Quad [5] | 5.4 | 0 0 0 15 9 Hidden Triple [6] | 4 | 0 0 0 7 10 Pointing/Claiming | 2.8 | 37 23 109 53 20 Locked Singles[3] | 2.9 | 3 3 4 4 1 Locked Singles[4] | 3.4 | 1 2 1 0 5 Locked Singles[5] | 3.9 | 1 1 0 0 0 Turbot-fish [4] | 4.2 | 0 3 4 0 3 |-------|------------------------------ Eliminated Cand's | 2049 | 380 438 433 405 393 Sum(SER * Cand's) |1523.9 | 161.6 133.3 375.4 472.6 381 Initial Candidates : 2049 Maximum SER rating : 5.4 <- Approach Labour rating :1523.9 <- Experimental rating Time needed : 00:00:16.529 SiSeSuSo Solver and Generator (version 2021-03.b)

Finally a hard one with SER > 7.0, but probably >9.0

Code: Select all: #5/WX/E6,JS/N12,JS/H18/B24,JS/K30,JS .2.4..........54.....2..................8............87.......................... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 .....3.2...38..........9................2.....................6..............4... 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ................................................................................. ...5..............6.....................1................1..........46...1.3..... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ..........................19............7..................2.....38..........4.2. 777788999777888999778888999222444433222243333224444333111555566111555666111556666

To solve the hard puzzle SiSeSuSo needs 00:01:14.455 . No X- or XY-chains, but forcing chains/nets needed.

All puzzles are symmetric and not minimal.

by **urhegyi** » Tue Mar 09, 2021 8:32 pm

One more solvable with turbot-fish and xy-wing:

Code: Select all: #5/WX/E6,JS/N12,JS/H18/B24,JS/K30,JS ......5..........1..4.......7.....3...59...4..................................... 666655111666555111665555111333444422333342222334444222999888877999888777999887777 ......9...........5...2..........................1...5.........................1. 999333666999333666999433566888434556888444555788424555778224111777222111777222111 ..............................4.................................................. ......................1...........................................2....7......... 111222777111222777111422877555424887555444888655434888665334999666333999666333999 ........5...........................6...1...........37.......................4... 777788999777888999778888999222444433222243333224444333111555566111555666111556666

by **urhegyi** » Thu Mar 11, 2021 1:20 pm

Anyone ready to solve this JSWX with a lot of variations in solving methods?
I'm interested in the SE rating too.

Code: Select all: #1/WX/B4,JS 6..1.3..4..2...6.................................................7...3..9..2.5..7 111155666211155566221157566222757566222777888334747888334749988334449998333449999

Code: Select all: #1/WX/B4,JS 6.......4..2...6....................5..3.2..1....................7...3..9.......7 111155666211155566221157566222757566222777888334747888334749988334449998333449999

The first example is very hard, the second one needs a lot of turbot-fish.

by **1to9only** » Thu Mar 11, 2021 10:48 pm

Code: Select all: 6..1.3..4..2...6.................................................7...3..9..2.5..7 111155666211155566221157566222757566222777888334747888334749988334449998333449999 JSWX ED=7.1/2.8/2.8 Analysis results Difficulty rating: 7.1 This Windoku Jigsaw can be solved using the following logical methods: 63 x Hidden Single (1.0-1.5) 2 x Direct Claiming (1.9) 2 x Direct Hidden Pair (2.0) 1 x Naked Single (2.3) 10 x Cage Pointing (2.6) 30 x Claiming (2.8) 27 x Generalized Intersection (2.9) 1 x Naked Pair (3.0) 1 x Generalized X-Wing (6.5) 1 x Forcing Chain (7.1)

Code: Select all: 6.......4..2...6....................5..3.2..1....................7...3..9.......7 111155666211155566221157566222757566222777888334747888334749988334449998333449999 JSWX ED=6.5/1.5/1.5 Analysis results Difficulty rating: 6.5 This Windoku Jigsaw can be solved using the following logical methods: 66 x Hidden Single (1.0-1.5) 1 x Direct Claiming (1.9) 2 x Naked Single (2.3) 9 x Cage Pointing (2.6) 8 x Claiming (2.8) 30 x Generalized Intersection (2.9) 1 x Generalized X-Wing (6.5)

I think both Generalized X-Wings involve one of the diagonals (X).

by **enxio27** » Fri Mar 12, 2021 3:47 am

Awesome looking puzzles, but WAY out of my solving range.

by **urhegyi** » Fri Mar 12, 2021 11:23 am

A nice looking layout which is not only generating easy puzzles is thisone:
When I have more time experiments will follow.

Code: Select all: #1/WX/B4,JS ................................................................................. 111155222111555222115554422336654442336666644833376644883377799888777999888779999

by **Hajime** » Fri Mar 12, 2021 11:44 am

enxio27 wrote:Awesome looking puzzles, but WAY out of my solving range.

The first Windmill should be within your range.
Don't forget that a Windoku has 4 visible extra houses and 5 hidden.

The New Sudoku Players' Forum

Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X

Re: Jigsaw + Windoku + X