How to Play?
Use given characters to form word.
In each game, you'll be given some characters and a placeholder for the possible words marked by 
. Tap on a character to input that character, and use 
as backspace. If a character can appear more then once, then a number will be displayered at its right bottom corner. Once you finish your input, use 
to submit your answer and check result.
Please note that the number of in the placeholder is not exactly the length of the possible words. In fact, it's usually longer than the length of possible words.
For each game, there're at least two possible words.
How Will You Be Scored?
You'll be scored as long as your input is a word.
The actual point of score will be the position of the word in word frequency list, so the rarer the word, the higher the score. For example, you'll score 7 for word "that", and 7469 for word "deer".
There're over 86,000 words, that is, you can score as high as 86,000+ in one single game.
Surely you'll find out lots of THINGS that you never think to be a word before. Don't worrry, just by one tap, the explanation of the word is shown to you (need Internet access).
The least length of word is 4 (there're too much abbreviation words with 2 or 3 characters), and this limit will increase when you get level-up.
At the beginning, only the first 5000 words in word frequency list is open to you (words beyond this range can still appear with a chance). With level-up, you'll unlock more words.