Example of Game-Tree Search
• Search: Tic-Tac-Toe
– players place X and O in
turn.
– Initial state: empty 3´3 grid
– Goal state: three of a player's
symbol in a row
– Count win = +1, draw = 0,
loss = -1
– Find sequence of move
which maximizes utility
regardless of adversarial
play
…
…
…
…
draw
0