The purpose of Cross+A is to simplify the solution of crosswords, word-based puzzles, nonograms and sudokus. Cross+A provides very flexible and powerful search tools. User can search English words by known letters and descriptions as well as find anagrams and word-combinations.

It uses a dictionary of 159000 English words (part of them - with descriptions). User can add new words, delete and change descriptions or copy them to the clipboard. Cross+A also includes:
* the list of English proverbs and sayings;
* the list of English synonyms and antonyms.

Search modes of the program:
-Search by Letters
Search word by known length and letters.
-Anagram Search
This mode has two special options:
-"Descending" Search
Search for all words that can be created from the text letters.
For example, for the word option the program will find the words list: point, piton, top, into, tip, etc.
-"Ascending" Search
Search for all words that include all letters of the text.
For example, for the word element the program will find the words list: settlement, development, experimental, acknowledgement, electromagnetism, etc.
-Search by Description
This search mode is used when some words in the target word description are known.
-Search by Pattern
Search with use of special wildcard characters.
-Word-combination Search
The program tries to create word-combinations using the text letters.
For example: incredible = nice + bridle.
-Telephone Number Search
The program finds word equivalents for the telephone numbers. Telephone number digits are substituted by letters written on telephone set buttons.
For example: 728-74-68 = PATRIOT.
-Search by Syllables
The program creates words using syllables from the user's list.
For example: at,be,e,for = ate, beat, bee, before, fore.
-Coupling Words Search
Search for pairs of words where the first word ending is equal to the second word beginning.
-Trackword Search
Search for words, which can be made by moving from letter to letter horizontally or vertically in the grid.
-Cryptarithm
Cryptarithm is an mathematical puzzle involving words where there is a one-to-one mapping between letters and digits that makes the arithmetic equation true. For example: MOTHER+FATHER=PARENT => 196753+286753=483506.
-Word-chain Search
Search for chains of words, where every word differs from its neighbors by one or few letters. For example: FLY - FAY - FAT - CAT.

Logic puzzles:
-Nonogram ("Hanjie")
Solve black-and-white and multicolored nonograms (griddlers). User also can create his own nonogram.
-Sudoku
9 x 9, 12 x 12, 16 x 16, Sudoku X, Geometry Sudoku (Kikagaku Nanpure), Godoku (Wordoku), Asterisk Sudoku, Windoku, Sudoku-DG, Killer Sudoku, Greater Than Sudoku, Even-Odd Sudoku, Consecutive Sudoku, Samurai Sudoku, Flower Sudoku, Sohei Sudoku, Kazaguruma, Twodoku.
Kakuro ("Cross Sums")
Hitori
Slitherlink
Link-a-Pix ("Paint by pairs")
Fill-a-Pix ("Mosaik")
Battleship
Hashiwokakero ("Bridges")
Masyu ("White pearls and black pearls")
Light Up ("Akari")
Fillomino
Futoshiki ("Unequal")
Kuromasu ("Where is black cells?")
Nurikabe ("Islands in the Stream")
Tents ("Tents and Trees")