key: 不再异或 pieceCountInHand 和 ACTION_REMOVE
两者并不会影响到 value 的计算,故可移除。 而 pieceCountNeedRemove 需要保留,因为会影响 value 计算。
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@ -1265,12 +1265,15 @@ Key Position::update_key_misc()
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}
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#endif
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#if 0
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if (action == ACTION_REMOVE) {
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hi |= 1U << 1;
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}
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hi |= static_cast<Key>(pieceCountNeedRemove) << 2;
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hi |= static_cast<Key>(pieceCountInHand[BLACK]) << 4; // TODO: may use phase is also OK?
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#endif
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hi |= static_cast<Key>(pieceCountNeedRemove) << 2;
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st->key = st->key | (hi << (CHAR_BIT * sizeof(Key) - KEY_MISC_BIT));
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