I was a bit surprised when my opponent resigned at this point, having played my queen from f3 to b3. A rook, knight and bishop against my queen is advantageous to my opponent, but there is that pawn on b7. Don't get me wrong. I thought I had a winning chances here, but there was still a lot of work to be done. His problem, of course, is the move b7-b8 (Q) coupled with a closed backrank. Exchanging bishops would deny black the bishop pair plus his white-squared bishop could be very problematic for me. Let's take a look : 27... Be2 28. b8 (Q) Bc4 29. Qe8+ Ne8 30. Qe3 double attack. Another way is, 27... Re2 28. b8(q)+ Re8 29. Qe8+ Ne8 30. Qb5 Kf8 31. Qb4+ and white is looking better. And if 27... Rb8, then 28. Bg4 Ng4 29. Qd5 h5 30. Qc5 Be5 31. Qa7 Bc7 32. a4 and white has a very good game.