和 Nothing 手机不同，Nothing 在内地有官方店出售耳机产品，目前 Headphone (a) 在国内还未正式发布，因此暂时还没有正式的国行售价。
Our initial recursive implementation was made up of 5 lines of logical code and 6 lines of type definitions. All of the data was immutable and the implementation was effectively forced by the shape of the data; under these constraints it would be harder to get it wrong than to get it right. Our iterative implementation is over ten times as long (not even counting type definitions and helper functions), makes wanton use of mutability, and is generally rife with potential edge cases. Questions about how this could possibly be tested and maintained are unavoidable.
，详情可参考新收录的资料
The evaluation function scans all 64 squares and sums material values plus piece-square table (PST) bonuses. The PSTs follow the well-known Simplified Evaluation Function from the Chess Programming Wiki: pawns are rewarded for advancing toward the center, knights prefer central squares, kings prefer the corners in the middlegame, etc.。新收录的资料是该领域的重要参考
Component Overview，详情可参考新收录的资料