Tbilisi Rd5: Three wins

[Event "Tbilisi FIDE GP 2015"] [Site "Tbilisi GEO"] [Date "2015.02.20"] [Round "5.3"] [White "Kasimdzhanov, Rustam"] [Black "Svidler, Peter"] [Result "1-0"] [ECO "D85"] [WhiteElo "2705"] [BlackElo "2739"] [PlyCount "57"] [EventDate "2015.02.15"] [SourceDate "2015.02.07"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. e3 Bg7 7. f4 {An interesting and recent approach to battling the Grunfeld. White prevents e5 at all costs, but he is of course still vulnerable to c5.} O-O 8. Nf3 Bg4 9. h3 Bxf3 10. Qxf3 N8d7 11. O-O-O $5 {A great decision. This allows White to play a quick h4-h5 to attack the kingside if he wants, so it pushes Black to activate his pieces immediately.} e6 12. Kb1 c5 13. dxc5 Nxc5 14. e4 Qe7 15. Be2 Rad8 16. Rhe1 Rd4 17. e5 f6 $1 {Of course Black has to keep creating threats.} 18. Nb5 Rd5 19. Bb4 fxe5 20. Qa3 $1 {A nice sacrifice. White has multiple threats, especially on the a3-f8 diagonal, and Black has to be careful of opening the center too quickly as well as the a7 pawn.} Nbd7 21. Bg4 Rxf4 $6 (21... Rxd1+ 22. Rxd1 h5 23. Bf3 exf4 24. Nd6 $13) 22. Rxd5 exd5 23. Nc3 {Black's center cannot be held. The threat is Bxd7.} (23. Bxd7 {doesn't work yet} Qxd7 24. Bxc5 Qxb5 {this is why Kasimdzhanov moved his knight.}) 23... Rf7 $2 {This, though, is a serious mistake.} (23... Rc4 $1 24. Nxd5 Qf7 { now the knight on c5 is defended} 25. Ne3 Rxb4 26. Qxb4 Nd3 27. Qxb7 Nxe1 28. Bxd7 $14) 24. Nxd5 Qd6 25. Rd1 b6 26. Qxa7 {Now Black is very tied down and he cannot hold all of his pieces together.} e4 27. Bxd7 e3 {desperation} (27... Rxd7 28. Bxc5 bxc5 29. Qxd7 Qxd7 30. Nf6+ $18) 28. Nxe3 $1 Qe5 (28... Rxd7 29. Rxd6 Rxa7 30. Nc4 {was also hopeless.}) 29. Qa8+ (29. Qa8+ Rf8 30. Qd5+ { forces the trade of queens and White remains up a piece.}) 1-0

[Event "Tbilisi FIDE GP 2015"] [Site "Tbilisi GEO"] [Date "2015.02.20"] [Round "5.6"] [White "Jobava, Baadur"] [Black "Mamedyarov, Shakhriyar"] [Result "1-0"] [ECO "A01"] [WhiteElo "2696"] [BlackElo "2759"] [Annotator "Ramirez Alvarez,Alejandro"] [PlyCount "54"] [EventDate "2015.02.15"] [SourceDate "2015.02.07"] 1. b3 Nf6 2. Bb2 g6 3. Nc3 Bg7 4. d4 c5 5. e3 cxd4 6. exd4 d5 7. Qd2 Nc6 8. O-O-O {A Jobava opening leading to a Jobava position. What a strange situation! White has castled queenside, fianchettoed, but hasn't touched his kingside pieces.} Qa5 9. f3 h5 (9... O-O {was another way of playing, no worrying about h4-h5.}) 10. Kb1 Bf5 11. Bd3 $5 {An interesting pawn sacrifice. The point is that White gets several tempi to develop while Black's king remains in the center.} Nxd4 12. Nge2 Nxe2 13. Qxe2 Bd7 14. Rhe1 (14. Bb5 $5 Bxb5 15. Qxb5+ Qxb5 16. Nxb5 {gives White a slight edge as he will regain the d5 pawn, but it's rather close to equal and way too normal for a player like Jobava.}) 14... e6 15. Bxg6 $5 {Does this work? Who cares! Practically speaking White will have a lot of compensation, but objectively it shouldn't be sufficient.} fxg6 16. Nxd5 Nxd5 {forced} (16... O-O 17. Nxf6+ Bxf6 18. Bxf6 Rxf6 19. Rxd7 $18) 17. Bxg7 Rg8 18. Qe5 Rxg7 $6 (18... Qc7 $1 {is a beautiful resource that would have parried most threats.} 19. Qd4 (19. Qxd5 Rxg7) (19. Rxd5 Qxe5 20. Rdxe5 Rxg7 $19) 19... O-O-O $17) 19. Rxd5 Qb4 20. Rd6 {Now White has a huge attack against the uncastled king position.} Kf8 $18 {The rook lift is deadly.} (20... O-O-O 21. Re4 $18 {The rook lift is deadly.}) 21. Red1 Bc6 22. R1d4 $2 {losing a crucial tempo.} (22. Rd8+ Rxd8 23. Rxd8+ Be8 (23... Kf7 24. a3 $1 {removing the defense of f4. The queen has no square to keep it under control} (24. Qc7+ $4 Kf6 $19) 24... Qh4 (24... Qe7 25. Qf4+ Qf6 26. Rf8+ ) 25. Qc7+ Kf6 26. Rf8+ $18) 24. Qf6+ Rf7 25. Qh8+) 22... Qb5 23. Rd8+ Rxd8 24. Rxd8+ Ke7 25. Qd6+ Kf6 26. Qd4+ Kf7 $4 {Returning the favor!} (26... Ke7 $11) 27. Qf4+ {Black is now hopelessly lost. Ke7 runs into Qf8 mate, while Qf5 into Qc7+ followed by Rf8.} Ke7 1-0