
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
There are 100 chess pieces, and two players take turns to take the pieces. Each time, a player is allowed to take 1 or 2 pieces. The player who takes the last piece wins. If you go first, how many pieces should you take on your first turn to ensure victory?

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