Here's a tip when sending by email. You don't have to actually send the email, just save it as a draft, then the .sgf attachment becomes immediately available. So you can open in Gobandroid, or other editable Go app! Hope this helps.
Pretty good app But be aware that even with the subscription service you won't get the 5 Dan strength that Crazy Stone displays on KGS. Non-subscription version seems to play at 2-3 kyu sort of level on 19*19 and stronger on smaller boards. Rather predictable moves, small joseki repertoire and plays aji keshi kikashi like a 20 kyu. Can't always identity seki correctly. It also resigns too easily. Hopefully some of these issues could be addressed in future releases.
One of worst go apps out there The crazy stone engine is not bad, compared to GNU Go, but it's play style is still way too mechanic to be enjoyable. It always tries to win by smallest possible margin, resigning every time it starts to lose, doesn't punish obviously bad moves unless you choose the strongest level. On weak levels it mostly plays random moves and resigns at random, which is really boring. It always opens handicap games in exactly same way: If you play a 2 handicap game on 9x9 against it, it will always start by playing 4-4
Excellent Strong engine but makes strange plays in the opening sometimes. Also, what was the latest update? No mention if it was bug fixes or the long awaited landscape mode which it was not....clue us in on what we are downloading ffs.
Very strong! I had been using Go Droid which uses the GNU Go engine, and was beginning to beat it with some regularity. Then I switched to Champion Go which made me feel like a complete beginner again! Today I beat it with a 4 stone handicap and no undo's. It will be a long time before I can beat it without a handicap, and that's a good thing. I like the default tap-zoom interface. As others have mentioned, the rest of the UI is a little clunky and unpolished. Also, I would love for saved game records to be public on the device so that I can copy them when I like. It supports an option to email a game, so there is at least one way to get them. The territory view button is helpful, but the back button should take it down. The Options dialog respects the back button, so the "Back" button there is unneeded. The bouncing animation used for most dialogs is really annoying. Please at least give an option to turn that off. Removing the Options back button will provide enough space for that. I like the idea of an atari warning, but as implemented it is distracting and not helpful. Better would be to use a colored overlay on all ataried stones or perhaps a small yellow triangle. Overall, great app!!
Badly needs HD / Tablet UI Strong fundamental Go program, but UI is only suitable for phones. No landscape orientation, lo-res skin... looks pretty gnarly on my NotePRO 12.2. Provide an HD skin with panorama option and you're five star.