Interesting jigsaws

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Re: Interesting jigsaws

Postby Hajime » Tue Jan 05, 2021 4:40 pm

urhegyi wrote:Only 3 out of 305 with a swordfish and nothing at all for naked/hidden quad. No yellyfish. Is my sample to small? Do I have to generate 10000 or more?

I think so.... if that is what you persue... but only publish what complies :shock:
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Re: Interesting jigsaws

Postby urhegyi » Fri Jan 08, 2021 5:16 pm

I did some experiments with the last pattern proposed by Hajime. Yesterday the program turned a long time for a few uninteresting examples. Today I had more luck. An x-wing 3.2 example in less than a second, and yesterday it took hours.
Here are the results:
Code: Select all
....2....29......1...4.8...7............5.6...5.............83........5.....1...2 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=2.8/1.2/1.2
....2.6...4...9.........8........25.....6......2.7....5...9..........1.4......... 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=2.8/1.2/1.2
...83.............24.9..........32...5.....6....1...........9.......9....3.4.8..6 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=2.8/1.2/1.2
6.7.9..2........7.4............2....7.....4...2.....9.1.........5.....3.....1.... 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=2.9/1.2/1.2
.....6..369..1...............7.....5.8......1.......4.26.............2........8.. 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=3.0/1.5/1.5
....1..........5..............8...5...1.........9.....3.6..1......2...635.....84. 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=3.2/1.2/1.2
3....95.....7..............1.3.....8....9.......6.8......3...5...7.........4...7. 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=3.4/1.2/1.2
....5.............9.4.......4...2.311.23........9.........6.....27......7..5..4.. 111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=6.6/1.9/1.9
Last edited by urhegyi on Sat Jan 09, 2021 7:16 pm, edited 1 time in total.
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Re: Interesting jigsaws

Postby Hajime » Sat Jan 09, 2021 3:08 pm

urhegyi wrote:I did some experiments with the last pattern proposed by Hajime. Yesterday the program turned a long time for a few uninteresting examples. Today I had more luck. An x-wing 3.2 example in less than a second, and yesterday it took hours.
Here are the results:
Code: Select all
3....95.....7..............1.3.....8....9.......6.8......3...5...7.........4...7.
111152222144152552144355552114353922444333999664373988677773998677678998666678888 ED=3.4/1.2/1.2

Because SiSeSuSo does not has the same order to test a method as SudokuSolver, I did not reach the X-wing, but found a Naked and Hidden Quad first.
So solved with Naked/Hidden Subsets and Pointing/Claiming only:
Code: Select all
#1//B4,JS
326879541465782193984135627153247968271593486719658234698314752847926315532461879
111152222144152552144355552114353922444333999664373988677773998677678998666678888


Here is an example, same layout, with lots of methods needed (VWXYZ-chain and some Turbot-fish on top of the Jigsaw-pieces and rows or columns)
Not more than SER=6.4
Code: Select all
#1//B4,JS
6...1......3........2...9..7......9.5..................48.....5.2............7.1.
111152222144152552144355552114353922444333999664373988677773998677678998666678888


Found a bug in the January version of SiSeSuSo when no boxes but jigsaws and VWXYZ-wing is tested :(
Fixed it and also published it on the website today.
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