📘 43.Bg3? Rd7? 44.Bf2=
As you can see in the following comments from GM Elshan Moradiabadi, after 43.Bg3? Black had a winning opportunity:
Black could win with 😏
47...c5!! 48.bxc5 [48.Bf2 d4! 49.cxd4 cxb4 Black king blocks white's central mass while the b-pawns decide the game.]
48...d4 49.cxd4 [49.Be1 dxc3 50.Bxc3 Rd7 And now the black's rook invade white's position. The game is practically over for white. 51.Kf2 Rd3 52.Be1 Rd5 53.Bb4 Rd4–+]
49...Rd7 50.Bf2 [50.Kf2 Rxd4 51.Ke3 Rc4 And the b-pawn decides]
50...b4 51.c6 Rc7 52.f5+ gxf5 53.gxf5+ Kd5!! [Blockade is more important than material]
[53...Kxf5?? 54.d5! Kxe5 55.Bg3+ Kxd5 56.Bxc7 b3 57.Bd8 Kxc6 58.Bf6 Kb5=]
54.Be1 b3 55.Bc3 Rxc6 56.Ba1 Rc1 57.f6 Rc2+ 58.Kf3 b2 59.Bxb2 Rxb2 60.f7 Rb8–+
As you can see in the following comments from GM Elshan Moradiabadi, after 43.Bg3? Black had a winning opportunity:
Black could win with 😏
47...c5!! 48.bxc5 [48.Bf2 d4! 49.cxd4 cxb4 Black king blocks white's central mass while the b-pawns decide the game.]
48...d4 49.cxd4 [49.Be1 dxc3 50.Bxc3 Rd7 And now the black's rook invade white's position. The game is practically over for white. 51.Kf2 Rd3 52.Be1 Rd5 53.Bb4 Rd4–+]
49...Rd7 50.Bf2 [50.Kf2 Rxd4 51.Ke3 Rc4 And the b-pawn decides]
50...b4 51.c6 Rc7 52.f5+ gxf5 53.gxf5+ Kd5!! [Blockade is more important than material]
[53...Kxf5?? 54.d5! Kxe5 55.Bg3+ Kxd5 56.Bxc7 b3 57.Bd8 Kxc6 58.Bf6 Kb5=]
54.Be1 b3 55.Bc3 Rxc6 56.Ba1 Rc1 57.f6 Rc2+ 58.Kf3 b2 59.Bxb2 Rxb2 60.f7 Rb8–+
📘 GM Moradiabadi:
16.Nxe6!? [A very deep idea which Gabuzyan failed to assess to correctly.]
16...fxe6 17.Rxc6 Ng4 18.Qd4 Bf6 19.Qxg4 Bxb2 20.Rb1 Bxc6 21.Qxe6+ Kh8 22.Qxc6 Ba3 23.h4! [And black king is rather weak. White has a tangible advantage here. It is not possible for human to calculate from here but intuitively one should feel that white is better thanks to his center and black's weak king.
16.Nxe6!? [A very deep idea which Gabuzyan failed to assess to correctly.]
16...fxe6 17.Rxc6 Ng4 18.Qd4 Bf6 19.Qxg4 Bxb2 20.Rb1 Bxc6 21.Qxe6+ Kh8 22.Qxc6 Ba3 23.h4! [And black king is rather weak. White has a tangible advantage here. It is not possible for human to calculate from here but intuitively one should feel that white is better thanks to his center and black's weak king.
📘 After setting up a drawing position, GM Melkomian, the former Armenian Champion, made a blunder by playing:
86...Ra7?
(86...Rf7 87.Rd7 Rf8+ 89.Rd8 (89.Kc7 K×g5) 89...Rf7=)
87.Rd7! Ra8+ 88.Kb7 Rg8 89.Kc7 Ra8 90.Rg7+ Kf5 91.Kb7 Re8 92.h7 1-0
86...Ra7?
(86...Rf7 87.Rd7 Rf8+ 89.Rd8 (89.Kc7 K×g5) 89...Rf7=)
87.Rd7! Ra8+ 88.Kb7 Rg8 89.Kc7 Ra8 90.Rg7+ Kf5 91.Kb7 Re8 92.h7 1-0
📘 16...Nd8!
To maneuver the knight to a preferrable square and to free the c pawn to either move it to c5 and control d4 or to play c6 and consolidate d5.
To maneuver the knight to a preferrable square and to free the c pawn to either move it to c5 and control d4 or to play c6 and consolidate d5.
📘 An intetesting combination from Jobava.
21...Nxf2!? 22.K×f2 Qh4+ (B×e5 23.d×e5 Qh4+ --->Q×c4 was also possible)
23.Qg3 Q×g3 24.h×g3 B×e5 25.d×e5 R×c4=
21...Nxf2!? 22.K×f2 Qh4+ (B×e5 23.d×e5 Qh4+ --->Q×c4 was also possible)
23.Qg3 Q×g3 24.h×g3 B×e5 25.d×e5 R×c4=
📘 7...Nfd7
This move became popular among super grandmasters after Kramnik played it in 2000 against Adams. The idea is to maneuver the knight to e6 via f8 to increase control over the critical square d4. By delaying the short castle black has kept both the option of long castle and the option of h6 after Be3 and Qd2.
This move became popular among super grandmasters after Kramnik played it in 2000 against Adams. The idea is to maneuver the knight to e6 via f8 to increase control over the critical square d4. By delaying the short castle black has kept both the option of long castle and the option of h6 after Be3 and Qd2.
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🔸Iranian Championship semi-final 2017
🔸Round 5
⚪️Mosadeghpour,Masoud (2510)
⚫️Tabatabaei,M.Amin (2563)
🔸0-1
🔸Round 5
⚪️Mosadeghpour,Masoud (2510)
⚫️Tabatabaei,M.Amin (2563)
🔸0-1
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🔸Iranian Championship semi-final 2017
🔸Round 6
⚪️Rastbod,Ali (2353)
⚫️Mosadeghpour,Masoud (2510)
🔸½-½
🔸Round 6
⚪️Rastbod,Ali (2353)
⚫️Mosadeghpour,Masoud (2510)
🔸½-½
📘 17.d5!! to weaken f5 and as a result black king's safety. 17...ed5 18.Nh4 or Bh3
The value of white's positional advantage is more than a pawn.
The value of white's positional advantage is more than a pawn.
📘 Both black bishops are aiming at white's king, and black knight is ready to land on f4 outpost; on the other hand, Bb4 and Na5 are miles away kingside. These factors makes a kingside attack highly promising.
An at least dubious sacrifice 18...Bxh3? in such a pleasant position is illogical.
18...Ng3?! 19.Rfc1 is also pointless as Ng3 is not attacking any concrete weaknesses in white's castle.
18...Qf6! is a strong move. Black defends d6 and threatens Bxh3.
18...Qf6! 19.Kh2 Nf4 20.Ng1 (20.Ne1 Qh4-+ with an imminent sacrifice on h3) 20...Qg56 21.f3 (21.g3 Nxh3 22.Nxh3 Qh5-+) 21...Be3! 22.Qc2 Rfc8 23.Nc4 d5 0-1
An at least dubious sacrifice 18...Bxh3? in such a pleasant position is illogical.
18...Ng3?! 19.Rfc1 is also pointless as Ng3 is not attacking any concrete weaknesses in white's castle.
18...Qf6! is a strong move. Black defends d6 and threatens Bxh3.
18...Qf6! 19.Kh2 Nf4 20.Ng1 (20.Ne1 Qh4-+ with an imminent sacrifice on h3) 20...Qg56 21.f3 (21.g3 Nxh3 22.Nxh3 Qh5-+) 21...Be3! 22.Qc2 Rfc8 23.Nc4 d5 0-1