Mike Wojcio's "Queen Sac" Game

Position after 33...Bd7.
What's the strongest move for White to play and win?
(Note: Black's King has moved, making 34...O-O-O illegal).

I returned from Michigan yesterday to find the following game in my e-mail from Mike Wojcio. It is his game from the match with West Orange. I had asked Mike to send it to me because Scott Massey, who saw the game, said that it featured some excellent play by our "president emeritus" -- after the mistake that lost his queen, that is.... Having just given it a going over with Fritz, I must concur. Mike develops excellent play on the back rank that eventually guarantees him the win no matter what his opponent does. As I write in my notes: "Mike played so brilliantly once he lost the queen that you'd almost think he sacrificed it!"

[Event "Kenilworth CC at West Orange CC"]
[Site "West Orange, NJ USA"]
[Date "2005.06.28"]
[Round "?"]
[White "Wojcio, Mike"]
[Black "Hart, Charles"]
[Result "1-0"]
[ECO "B02"]
[Annotator "Goeller,Michael"]
[PlyCount "73"]
[TimeControl "G60"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 {Mike notes: "This is the 'chase variation.' I played it against Arthur Bisquier in the Bermuda Open around 1989 and lost. Arthur played the same Kf8 move against me. I also played it against Roz Katzson who is a master. He played a variation giving up the exchange. I am very prepared against that variation today."} e6 6. Nc3 $5 { White does not have to play a gambit. The superior} (6. d4 d6 (6... b6 $5) 7. cxd6 cxd6 8. Nf3 Nc6 {heads toward the familiar isolani territory discussed recently by Steve Stoyko at the club.}) 6... Nxc3 7. bxc3 (7. dxc3 $5 Bxc5 8. Qg4 g6 9. Bh6 d5 $13) 7... Bxc5 8. d4 Be7 (8... Bf8 $5) 9. Qg4 Kf8 ({ I always prefer} 9... g6 { in situations like this, but neither is especially appealing.}) ({Of course not } 9... O-O $2 10. Bh6 $1 $18) 10. f4 (10. Ne2 $5) 10... h5 (10... d5 11. Bd3 c5 ) 11. Qf3 ({Mike notes that} 11. Qh3 $1 {would help support g4 or f5 with better attacking chances than in the game notes Scott Massey.}) 11... d5 12. Bd3 g6 $6 {...then he should have played this in the first place.} (12... c5 $1 ) 13. Ne2 Kg7 14. O-O h4 $6 {This seems like a risky idea since it potentially weakens the kingside defenses. Black should seek counterplay via the queenside.} 15. Qg4 Rh5 $6 16. Be3 Nc6 $6 { Blocking the c-pawn is simply wrong-headed.} (16... b6 $1 { with ideas like c5 and Ba6 looks more reasonable.}) 17. Rf2 (17. Rf3 $1 Na5 18. Rh3 Nc4 19. Bxc4 dxc4 20. Ng3 Rh8 21. Ne4 $1 Qd5 22. Ng5 $36) 17... Bf8 18. Raf1 Ne7 19. Qf3 Nf5 {White is down a pawn with no obvious plan.} 20. g3 (20. Bxf5 $6 exf5 $1 $15 (20... Rxf5 $2 21. g4 $16)) (20. g4 hxg3 21. Nxg3 Rh4 $15) 20... hxg3 21. hxg3 Rh3 22. Kg2 $4 Nh4+ 23. Kxh3 (23. gxh4 Rxf3) 23... Nxf3 24. Rxf3 f5 $5 {Good timing, since White does not benefit from capturing. Better, though, may have been to try to open up lines on the queenside and activate his forces with} (24... c5 $19) 25. g4 $5 Be7 26. g5 $5 { White creates chances of attack down the h-file.} c5 $6 {Finally! But maybe the right plan at the wrong time. Black's queenside play may actually distract him from necessary defense, since now White develops a very strong kingside attack.} ({ Close analysis suggests that it was necessary for Black to play} 26... Qg8 $1 { and build up a kingside defense.}) 27. Kg2 Qa5 28. Rh3 Kf7 29. Rh8 $1 { Tying up Black's queenside forces.} c4 30. Rfh1 $1 Bf8 $8 { All other moves allow mate!} 31. R1h7+ Ke8 $2 { It's never good to walk into a pin.} ({Better} 31... Bg7 $1 32. Bb1 b5 33. Bd2 Bb7 {allows Black to extricate himself. Now he gets in trouble.}) 32. Bb1 Qb6 ({No better was} 32... Bd7 33. Bc1 $1 (33. Rxf8+ $5 Kxf8 34. Rxd7 $13 ({or} 34. Rh8+ Kg7 35. Rxa8 Ba4 $1 $13)) 33... Rc8 (33... Rd8 34. Rg7 $1) 34. Rg7 Qa4 35. Rxg6 $40 {and the passed g-pawn gives White a winning edge.}) 33. Bc2 ({Better } 33. Bc1 $3 {Anyway.} Qa5 (33... Qxb1 $4 34. Ba3 { and Black cannot prevent mate.}) 34. Rg7 $1 Bd7 35. Rxg6 $1 Kf7 36. Rgg8 Bg7 37. Rxa8 Bxh8 38. Rxh8 $18) 33... Bd7 34. Bc1 $3 (34. Rxf8+ $5 Kxf8 35. Rh8+ Ke7 36. Rxa8 $14) 34... Qa5 35. a4 $3 { Forcing the Bishop to a3 to take maximum advantage of the back-rank pin.} Kd8 { Desperation, but there was no hope in} (35... Rc8 36. Ba3 $18) 36. Rxf8+ Be8 37. Ba3 $18 {Mike played so brilliantly once he lost his queen that you would almost think he sacrificed it!} 1-0