Hi... are we chatting with an AI bot there ?

A new free website where you can practice tsumego.
http://www.ghost-go.com

Very nice!
I would hope for the interaction (i) choose level, (ii) solve lots of problems.
Here I zigzag: choose level, solve one problem, there is no way to continue that I noticed, go back, choose level again, solve the second problem.

very cool.
I know it is still in alpha...
just to let you know what instantly was missing:

- i tried "log in with google" ... and than the login-button still looked like i am actually not logged in at the moment, that looks like a bug, would be nice to have a status change here

- if i choose a problem and than hit the "back" button in my browser (yet there is no "next" or something) ... other problems appear than before... which is a pity because i like the design very much... you see all those problems as a goo portion... i checked everyone a few seconds... than i want to start... but after that... the familiar "portion" is gone...
(sorry can`t make it so simple with my english skills, you know what i mean:)

But i`m sure this will be a good site similar but different to goproblems.com ... very cool, looking forward to it.

It's obvious you've put a great deal of effort into this site, thank you.

That being said, there are some bugs. Here is one to work on:

For this problem - http://www.ghost-go.com/puzzles/10570 - how can I get a green checkmark to appear?

Well done! Like the site very much and it's been a while since I've done as many tsumego as I did the past two days here. I hope this project keeps going.

Where are the tsumegos sourced from?

Agree, I love the site. It's a well done project.
I'd like to second Satorian because I also just wondered where you got all those tsumego from? There's so many and it's awesome

I only gave it a short try but I like it so far.
As a (very) minor criticism, I find the stones/goban a bit too large

Seconded. Even with a really large browser window I get horizontal and vertical scroll bars.
There is now a "next puzzle" button, but with range upper bound set to 2k the reply is "No next puzzle".

The no puzzle bug has been fixed. I guess the scroll bars should be a browser compatibility issue. Could you tell me which browser and version you are using?