FIDE World Junior Chess Championship 2018 (open & girls under 20) will be held in Kocaeli - Gebze, Turkey from September 4th to 16th 2018.
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Grandmasters Nakamura and Vachier-Lagrave play a casual game ... without a board! GM Aronian looks on and comments.
@UnityChess
@UnityChess
♦️ Tigran Petrosian
♦️ Soviet Armenian Grandmaster
🔸Born: June 17, 1929, Tbilisi, Georgia
🔸 Died: August 13, 1984, Moscow, Russia
@unitychess
♦️ Soviet Armenian Grandmaster
🔸Born: June 17, 1929, Tbilisi, Georgia
🔸 Died: August 13, 1984, Moscow, Russia
@unitychess
4...b6!?
An interesting pawn sacrifice which was introduced by English GM Jonathan Penrose in 1958.
5.d×c5 b×c5 6.Qd5 Nc6 7.Q×c5 Bb7 8.Nbd2 Nf6 9.Bg2 0-0 10.0-0 a5 11.Ne5 Rc8 12.Qb5 Rb8
An interesting pawn sacrifice which was introduced by English GM Jonathan Penrose in 1958.
5.d×c5 b×c5 6.Qd5 Nc6 7.Q×c5 Bb7 8.Nbd2 Nf6 9.Bg2 0-0 10.0-0 a5 11.Ne5 Rc8 12.Qb5 Rb8
34.e3?
34.b5!
This is the only correct way.
A) 34...Q×d4 35.b×a6 R×a6 36.a5 =
B) 34...Nb8 35.e×d3! Q×d4 36.Qc4 +/- leaves White with excellent compensation for the piece due to his dangerous connected passed pawns.
C) 34...Nc7 35.Nc6 Q×h3 36.Qc4 +/-
34...Q×h3 35.Qd5 Rf6 36.Bd2 Nc7 37.Qb7 Re5 38.Rdc1 Rh5 0-1
34.b5!
This is the only correct way.
A) 34...Q×d4 35.b×a6 R×a6 36.a5 =
B) 34...Nb8 35.e×d3! Q×d4 36.Qc4 +/- leaves White with excellent compensation for the piece due to his dangerous connected passed pawns.
C) 34...Nc7 35.Nc6 Q×h3 36.Qc4 +/-
34...Q×h3 35.Qd5 Rf6 36.Bd2 Nc7 37.Qb7 Re5 38.Rdc1 Rh5 0-1
15.N×g7!
The dramatic variation with the sacrifice of the knight on g7 was much analyzed, but White is not likely to get any advantage.
15...Rd8!
15...K×g7 16.Qd4 +/-
16.Qf3 K×g7 17.Bh6+! Kg6 18.c3 Nh5 19.Be3 f5 20.g4 Nf6 21.g×f5+ e×f5 22.Qg2+ Ng4 23.f3 b5 24.Bc2 Kf6 25.Bd4+ R×d4 26.c×d4 Bb7 27.B×f5 Nf2+ 28.Q×f2 Qf4 29.Bh3 Bg3 =
The dramatic variation with the sacrifice of the knight on g7 was much analyzed, but White is not likely to get any advantage.
15...Rd8!
15...K×g7 16.Qd4 +/-
16.Qf3 K×g7 17.Bh6+! Kg6 18.c3 Nh5 19.Be3 f5 20.g4 Nf6 21.g×f5+ e×f5 22.Qg2+ Ng4 23.f3 b5 24.Bc2 Kf6 25.Bd4+ R×d4 26.c×d4 Bb7 27.B×f5 Nf2+ 28.Q×f2 Qf4 29.Bh3 Bg3 =
25. Qf2??
In this critical moment, the calculation is a vital factor. White should have continued with 25.e6! and now:
A) 25...Rg8 26.Rf3 Rd1+ 27. Rf1
A1) 27... Rgd8 28. Qe4 R8d2 29. Qa8+ Rd8 30. Qe4 =
A2) 27...Rxf1+ 28. Qxf1 Rxg3+ 29. hxg3 Qxg3+ =
B) 25... Rxf4?? 26. Rxf4 Qxf4 27. Qa8+ Kg7 28. Nh5+ +-
25... Rg8 26. Kg2 Qd8 27. Kh1 Rd2 28. Qe3 Qd5+ 29. Qf3
Qxf3+ 30. Rxf3 Rgd8 31. e6 Rxb2 32. f5 Rd1+ 33. Nf1 Kg7 34. f6+ Kf8 35. Kg1 Re2 36. e7+ Kf7 37. Rf4 Rde1 38. a4 Re6 39. Kf2 R1e5 40. Ne3 Rxe3 0-1
In this critical moment, the calculation is a vital factor. White should have continued with 25.e6! and now:
A) 25...Rg8 26.Rf3 Rd1+ 27. Rf1
A1) 27... Rgd8 28. Qe4 R8d2 29. Qa8+ Rd8 30. Qe4 =
A2) 27...Rxf1+ 28. Qxf1 Rxg3+ 29. hxg3 Qxg3+ =
B) 25... Rxf4?? 26. Rxf4 Qxf4 27. Qa8+ Kg7 28. Nh5+ +-
25... Rg8 26. Kg2 Qd8 27. Kh1 Rd2 28. Qe3 Qd5+ 29. Qf3
Qxf3+ 30. Rxf3 Rgd8 31. e6 Rxb2 32. f5 Rd1+ 33. Nf1 Kg7 34. f6+ Kf8 35. Kg1 Re2 36. e7+ Kf7 37. Rf4 Rde1 38. a4 Re6 39. Kf2 R1e5 40. Ne3 Rxe3 0-1
12.Rc1!
Exploiting the absence of the knight from c3.
However, 12.Nc3!? is also not bad.
After 12.Qxb6 axb6 Black's activity would compensate for the spoiling of his pawn structure: 13.Rc1 (13.Nc3 Be6 and ...Rgc8) 13...Nb4 14.Nc3 Bf5 with equality. But now he is forced to exchange queens on b3, which activates the rook on a1.
12...Qxb3 13.axb3+/=.
Exploiting the absence of the knight from c3.
However, 12.Nc3!? is also not bad.
After 12.Qxb6 axb6 Black's activity would compensate for the spoiling of his pawn structure: 13.Rc1 (13.Nc3 Be6 and ...Rgc8) 13...Nb4 14.Nc3 Bf5 with equality. But now he is forced to exchange queens on b3, which activates the rook on a1.
12...Qxb3 13.axb3+/=.