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| Swordfish http://www.rcbroughton.co.uk/sudoku/forum/viewtopic.php?f=10&t=143 |
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| Author: | enxio27 [ Mon Jun 23, 2008 5:43 pm ] |
| Post subject: | Swordfish |
I think I've gotten reasonably proficient at identifying swordfish, but they never seem to eliminate any candidates (at least by the time I find them). Is that anyone else's experience, as well? |
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| Author: | Børge [ Mon Jun 23, 2008 6:36 pm ] |
| Post subject: | Re: Swordfish |
enxio27 wrote: I think I've gotten reasonably proficient at identifying swordfish, but they never seem to eliminate any candidates (at least by the time I find them). Is that anyone else's experience, as well? Spotting a Swordfish that does not eliminate any candidates is easier than spotting one that does. I have found many Swordfish that have eliminated several candidates.
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| Author: | enxio27 [ Mon Jun 23, 2008 9:56 pm ] |
| Post subject: | Re: Swordfish |
Børge wrote: Spotting a Swordfish that does not eliminate any candidates is easier than spotting one that does. I have found many Swordfish that have eliminated several candidates. I usually don't find swordfish until after my second pass through a puzzle. (Same goes for quads and most triples.) By that time, I've already eliminated quite a few candidates with singles, pairs, locking candidates, and the occasional X-wing. Perhaps by that time, there's nothing left for the swordfish to eliminate. |
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