Here are two 9th Key patterns and a hiding spot pattern.
The first pattern is the one I learned first and am most comfortable using.
Use the hiding spot pattern when you need a break. It's the same as clearing pattern 1, modified slightly to
take you to a hiding spot rather than clearing the board right away. You can safely stay in the hiding spot
for hours before choosing to clear the board. To my knowledge, clearing pattern 2 is the fastest 9th Key pattern around.