
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Each square of a chessboard has a knight on it. What is the minimum number of knights that need to be removed so that there isn't a single knight left on the board that can attack exactly three other knights? (A knight attacks squares that are one square away horizontally and two squares vertically, or vice versa.)

Present the answer in LaTex format: \boxed{Your answer}
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