The combination of Xs,Os, and blanks will approximately be somewhere between 2048 and about 4048. The combination’s total is 19, 683, but since the Xs and Os number will always be equal or off by 1, many cases are eliminated. Thus, the board is represented in 11 or 12 bits.
Answer:
5
Explanation:
2⁵ = 32, so that fits.
In general, to calculate the number of bits without guessing, you can take the 2 log of the number and then round up:

rounded up gives 5.
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