Sudoku Puzzles

little pond for that size frog.

What is the frog in/on?

No guesses today.

28:09 Straightforward puzzle.

It looks to me that the frog is an aquarium. The gravel at the bottom of the photo is all the same size and color which is rare in the wild. Also the way the amphibian is framed appears to be by something that is regularily placed in aquariums so the aquatic life has someplace to hide.

The frog in the frog rock, cool!!

Is the 'Rollie Pollie 'is the family name of this frog.
I may ask our Sudoku Piology to tell me to add such information to mey knowledge as Iam Engineer not Piologest. More...

Rollie Pollie is the name given to the frog by my granddaughter. It is in the aquarium. I think it is such a funny picture. Looks like the frog likes it's picture taken!

Magnificent back flippers!

Wow, naked pair, UP to 27 including a naked 7. Naked pairs and triples galore. I thought it was my birthday! A finned x-wing (digit 5) and Unique Corner(at 43(filled), naked pair 46@df4 and d3 forbids 46@f3, were nice surprises but the only factors that qualified this sudoku as 'tough'. Puzzle unravelled from there.
http://www.sudocue.net/guide.php#UniqueCorner

You like that word ''naked,'' doncha, MORGAN??!!

Good afternoon to all! 'The froggie went a courting and he did go, uh huh.'

1) Start 22, Unique Possibilities to (UP) 27.
2) Hidden pair 25 at g78 forbids g7=19, g8=49. UP 30.
3) Hidden pair 14 at gi5 forbids i5=8, d5=14, e5=1, f5=4. UP 33.
4) Naked triplet c9=34, h9=134, i9=134 forbids b9=13, d9=3, f9=3. UP 34.
5) Swordfish: 5s at bdf3, df5, bdf9 forbid b28=5, d78=5, f2=5.
6) df9=5 == e8=5 -- g8=5 == g8=2 -- b8=2 == b9=2 forbids b9=5. UP 81.

11:06..still trying to bring this time down.

A frog that poses for the camera, could be our next supermodel. Have a great day/night all.

Nah, Amelia, it's not skinny enough. Still looks like it can stand (or swim) on it's own.

21:33 With one lucky guess. I need to work on the proofs. We have lessons given by Steve, but I haven't taken the time to study. Good maeN.

25:10 A good time at tough level for me (no possibility markers). Morgan more or less took words from my mouth :-)

9.21 Still Keeping Down

Nice proof Clark!
One can, if one wished to, delete the swordfish step and combine Clark's last two steps with a Y wing style:

df9=5 == b9=5 -- b9=2 == b8=2 -- g8=2 == g8=5 forbids de8=5 UP 81

jyrki, your timing is very good, without possibility markers. Taking a cue from you, I tried without markers but gave up. Took around 35 mts with a few markers.