Minesweeper/Game Patterns

To become proficient at the game you must learn to recognize patterns in the playing field. In the following text:
 * c = left click
 * m = mine
 * n = any number
 * w = wall
 * x = don't know/don't care

Pattern: 1-1
given: w 1 1                                                                                                                                                                                                                  play: w x x c

Pattern: 1 - 2
given: w 1 2 x                                                                                                                                                                                                                                                                                                                                     play: w x x m

Pattern: Twin mines
given: 1 2 1 play: m c m

Pattern: Central Twin Mines
given: 1 2 2 1 play: c m m c

Pattern
given: w 2 2 x play: w m m c

Pattern
given: x 2 3 2 x play: c m m m c

Pattern
given: x 2 3 3 2 x play: c m m m m c