Since we haven't seen whatever system it is that Odin uses to track these things, there's no guarantee that he isn't using the whole board as well. If he isn't, it's possible that he's simply trusting in his higher-quality forces; eight pawns is no match for a queen and a rook, after all.

On the other hand, if he is using the whole board, it suggests some interesting strategies.

Peter Eng
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I did not require my other forces to defeat this attack; therefore, I left them hidden.