Bishop Exchange Strategy was adopted. I think Watanabe is really good at opening preparation. It seems like he always try to play something new his opponent probably doesn't know in detail. In this game, P-25 at #41 haven't been
About 10 moves later from Diag.1, advancing a gold
Actually, in reply to P*52, Habu took a silver simply. And, Watanbe captured the king from G*31. L*82 at #103 was the technique which is not commonly seen. I guess Habu overlooked this in the little time he had left.