What are the correct characters for 直接用自己的bǎolǐng象却换掉了对方的这个c3马 describing Caruana's recent surprise chess move? In this chess video, chess grandmaster 杨凯淇 describes a recent remarkable chess game where super-GM Caruana violated a chess principle:

在这个局面当中，走了象吃c3。直接用自己的bǎolǐng象却换掉了对方的这个c3马。
杨凯淇

I don't know what &quot;bǎolǐng&quot; means here, although I'd guess bǎo is 保.  In English, we'd call the bishop the &quot;fianchettoed bishop&quot;, borrowing from Italian.  I'm also not sure if 却 is correct.  So we might translate this to:

In this position, [he] moved the bishop to c3.  [He] directly swaps his fianchettoed bishop for his opponent's c3 knight.

Question: What are the correct characters for 直接用自己的bǎolǐng象却换掉了对方的这个c3马?
It is called &quot;堡垒象&quot;.
Not bao3ling3, but bao3lei3.