
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
Two people, Player A and Player B, are playing a guessing game. Player A thinks of a number, denoted as $a$, and then Player B tries to guess the number thought by Player A, denoted as $b$. Both numbers are in the set {1, 2, 3, 4, 5, 6}. If $|a-b| \leqslant 1$, it is said that the players are "close in heart". The probability that two arbitrarily chosen players are "close in heart" is \_\_\_\_\_\_\_\_.

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