Previously java only, now it is changing to html5. Works fine, a lot of peoples from thailand, japan and china, which is really odd because for a long time it was a Polish only game site (locally called kurnik.pl which mean chicken house). It is worth to mention that it is run by one guy only - Marek Futrega. Go section is very simple but playable. You can set a time, handi, board size and rank/no ranking game. It is quick and responsive on touch devices (it works on iOS devices with no problems). I mention this site because it's a place where I started to play go 7 years ago, so you now... Now it's Java free (at last!), html5 is taking place, so it's great for all mobile go players. There are very few strong players, andi t is rather swarmed by double digit kyus and low sdk but sometimes you will find 1k, 2k players with a hangover, and sometimes even a strong dan player can be found there. Check it out and write what do you think about such simple yet very accesible "go server for masses"

How does Kurnik/PlayOK handle scoring and disputes? Does it automatically mark dead groups?

It's still Java for Firefox 14.0.1, Chrome 21.0.1180.60, and IE 9 -- Which browser are you using to get HTML5?

HTML5 for Chrome 21.0.1180.75 beta on OS X

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“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS?

The games over there are "interesting". I just kibitzed one and I think they played a mix between Othello and Go, trying to fill every space.

But the interface is really nice on a tablet, and it's very low bandwidth and responsive.

Java for latest chrome for me as well.

On mobile devices HTML5 is used by default. On PC you will be asked if you want to go to standard java version or beta. Beta is HTML5. I'm using Chrome/Firefox on PC, and Chrome/iCabMobile on iPad & iPhone. No issues so far. Features are limited but overall it's good enough to play on the go.

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Tsumego/Tesuji apps for iPad, iPhone & Android devices:http://www.lifein19x19.com/forum/viewtopic.php?f=18&t=7511

I see no option for html5
Maybe it's limited to non-guest?

It's for all. What OS/internet browser you use? I checked on winXP, iOS, Linux, with chrome, firefox, safari, iCabMobie
- everytime I get option for html5.
Take a look at the screenshot.

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Tsumego/Tesuji apps for iPad, iPhone & Android devices:http://www.lifein19x19.com/forum/viewtopic.php?f=18&t=7511

Did you try it as a guest? Your screenshot shows you logged in as tommyray, not as a guest.
Windows Vista, Firefox 14.0.1:Windows Vista, Chrome 21.0.xxxx:I never saw that screen that gives you a choice of HTML5 or java, as a guest.

The same -- no choice but Java, as a guest, for Windows Vista, I.E. 9.0.xxxxx