Shusaku number

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The Shusaku number represents the "distance" between a Go player and Honinbo Shusaku, measured in Go opponents.

A person's Shusaku number can be determined, as follows:

• Shusaku himself has the Shusaku number 0.
• Any other Go player has the number 1 + the smallest Shusaku number of the player's opponents (provided at least one opponent has a Shusaku number). For example, if a player has played Shusaku himself, that player would have a Shusaku number of 1.
• For all other people, the Shusaku number is undefined.

[edit] See also

• Erdős number
• Bacon number
• Erdős-Bacon number

[edit] External links

• Sensei's Library: Shusaku Number