personally I have found that an Archbishop is especially powerful and in many cases would rather have one than a chancellor or queen. One reason is the solo mate, the other is the incredible defensive features it offers by being able to fork attacking pieces while defending. I think that the human brain finds diagonal routed attacks more difficult to deal with than ranks or files. There are so many examples I can think of in Tal's games where he would set up an apparent rook sacrifice, then sac the bish or N as the opponent was bolstering against the open attack..and this is at the GM level!

One more thing, as public service: the word "it's" is a contraction for "it is", so the cat put it's feet in the water is WRONG, the cat put its feet in the water (possessive) is right. Further unwelcome education may be found at http://angryflower.com/bobsqu.gif