On Mar 9, 2007, at 8:57 AM, John Joyce wrote:

>>
>> To eliminate the idea of rotation, we could just say this:  given  
>> the neighborhood:
>>
>> +--+
>> |12|
>> |43|
>> +--+
>>
>> Change to:
>>
>> +--+
>> |23|
>> |14|
>> +--+
>>
>> or:
>>
>> +--+
>> |41|
>> |32|
>> +--+
>>
>> There's a 50% chance to go either way.
>>
>> James Edward Gray II
>>
> these examples are rotation.

Correct.  This was just another way to describe it.

James Edward Gray II