It is possible that inconsistency of the speed of the falling tiles has to do with other processes on your computer. If your CPU is suddenly busy, it could give less attention to handling Go-Tetris. Then, when your CPU “catches up”, Go-Tetris goes back to normal. This might also delay moving keyboard inputs to the Go-Tetris process, resulting in something like the other problem.

I also fixed the high score list background color. I forgot I was using the default WP theme, and the style got overwritten when I upgraded.

Thanks again for all the suggestions Marathon.

I was wondering if an animated demo would help. Maybe one that shows capture of strings, basic removal by living, then digging down to get to empty areas bounded by both black and white stones.

When playing go, I distinguish between “strings” and “groups”. However, now that you mentioned it, I need to recognize that in go-tetris, there is no reason to distinguish between the two.

The tutorial is OK by me. But, I’m already a go player. Also, I learned of this site when the only way to remove a string, er, group was to kill it by surrounding it entirely, so I’ve been here for the introduction of the removal by life with single-point-eyes version and the current version. I wonder what non-go players who come to this site think.