Another Clue in Book One "Spoiler"

[Randy]

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I remembered something from Book One that I have not seen mentioned 
here yet.  As we debate whether Albus Dumbledore sacrificed his own 
life to Snape to allow for Snape and Harry to help save the Wizard 
World, we have a clue from Book One.

During the Chess Match Ron sacrifices himself to let Harry checkmate 
the other King.  Ron even says "sometimes you have to make some 
sacrifices!"  This is a perfect analogy to our theories that 
Dumbledore planned the whole death scene to fool Voldemort about 
Snape's loyalties.