For those who have mastered the first 2k. Tests both Chinese-to-English and Chinese-to-Pinyin. Includes traditional characters for reference only (not tested).
The English and Chinese glosses are a work in progress! Please contact me or post in the forum if you would like to contribute.
These are by frequency according to the Jun Da frequency list at http://lingua.mtsu.edu/chinese-computing/statistics/char/list.php?Which=MO