#153 Yajilin – rated mediumEDIT and with alternative Akari-style presentation:
(can't find the old image. Meh.)
#153 Yajilin – rated mediumSee also this link for an interactive web version, courtesy of Otto Janko.
All puzzles © Tom Collyer 2009-11
SECOND EDIT And for those who are interested, here are the puzzles from the grand final for the Times Sudoku championship. On the day, these must have taken me 20+ minutes, but when republished in the newspaper later in the week, I clocked 14.10. Perhaps some of that was familiarity, but I’d argue that only made a difference with one of the puzzles (#4). I’d even argue that 14.10 felt a little slow, and as I posted in a comment in the previous entry, I reckon the crème de la crème could be much closer to an aggregate 10 minutes.
As with last year, I don’t have any sort of permission to reproduce these, so I’ll take them down if requested, but no-one complained last year and I think it’s fair use in so much as this will provide highly interesting international comparison. Since there is no copyright in the paper, I can’t be 100% sure that these are from the Puzzler Media generator, but I think it’s more than likely that that’s the case.
2011 Times Su Doku Championship Grand Final #1And finally, my own personal nemesis – and as with the case with most nemeses there’s no particularly good reason why this would be the case!
2011 Times Su Doku Championship Grand Final #2
2011 Times Su Doku Championship Grand Final #3
2011 Times Su Doku Championship Grand Final #4