28...Nf7?? [A fatal blunder that allows White to exploit Black's vulnerable king position by a spectacular combination.]
[28...Nc5! would be correct: 29.Rg1 Rg8 30.Rxg8 Qxg8 31.b4 Ncd7 32.Kb2 Qg5 33.Qh3 Nf8 34.h6 Qg8²]
29.Nxe6! [29.Bg4!? △N×e6 29...Nd8 30.Nxe6 Nxe6 31.Nd5+ Kf7 32.Bf5 △B×e6 32...Qh6 33.Bxe6+ Kxe6 34.Qh3+ Kf7 35.Qxd7++–]
29...Kxe6 30.Bg4+ [30.Qa7 Nc5 31.Bg4+ Ke7 32.Nd5+ Kf8 33.Nxf6 Qh6 34.Qb8+ Kg7 35.Ne8+ Kg8 36.Rg1+–]
30...Ke7 31.Qa7 Nd8 32.Nd5+ Kf8 33.Nxf6 Nxf6 34.Rxf6+ Ke8 35.Rxd6 Qxe4 36.Qb6 Qe1+ 37.Rd1 Qe7 38.Qg6+ Nf7 39.Rd7 Qe1+ 40.Ka2 1–0
[28...Nc5! would be correct: 29.Rg1 Rg8 30.Rxg8 Qxg8 31.b4 Ncd7 32.Kb2 Qg5 33.Qh3 Nf8 34.h6 Qg8²]
29.Nxe6! [29.Bg4!? △N×e6 29...Nd8 30.Nxe6 Nxe6 31.Nd5+ Kf7 32.Bf5 △B×e6 32...Qh6 33.Bxe6+ Kxe6 34.Qh3+ Kf7 35.Qxd7++–]
29...Kxe6 30.Bg4+ [30.Qa7 Nc5 31.Bg4+ Ke7 32.Nd5+ Kf8 33.Nxf6 Qh6 34.Qb8+ Kg7 35.Ne8+ Kg8 36.Rg1+–]
30...Ke7 31.Qa7 Nd8 32.Nd5+ Kf8 33.Nxf6 Nxf6 34.Rxf6+ Ke8 35.Rxd6 Qxe4 36.Qb6 Qe1+ 37.Rd1 Qe7 38.Qg6+ Nf7 39.Rd7 Qe1+ 40.Ka2 1–0
20.a5! [Before launching his attack on the kingside, White closes the queenside to limit his opponent's counterplay.]
[20.Nf1 bxa4!? 21.Bf4 Rb8 22.Bc1 Rab7 23.Qe3 Nc7 24.N1h2 Rxb2 25.Bxb2 Rxb2 26.Bxa4 Bxa4 27.Rxa4 Qf8 28.Rea1 h5 29.Qc1 Rb3 30.Rb1 Bh6 31.Qc2 Rxb1+ 32.Qxb1 Qb8 33.Qa1±; 20.Bf4 bxa4 21.Nf1 Rb8 22.Bxa4 Bxa4 23.Rxa4²]
20...b4 [Black tries to get some counterplay in the queenside.]
21.Bf4 Rb8 22.Qe3 [22.Nh2]
22...bxc3 23.bxc3 Rb2 24.Rec1 Nc7 25.Nf1 Nb5 26.N1h2 Qf8 27.Ba4 [27.Ng4 h5 28.Ngh2 Rb7 (28...Na3 29.Bd1) 29.g4±]
27...Rb7 28.h4 [28.Ng4! h5 29.Ngh2]
28...h5 29.Ng5 [29.g4! Qe8 30.Bc2 Qe7 31.gxh5 gxh5 32.Ng5 f6 33.exf6 Nxf6 34.Nhf3 Ng4 35.Qe1 Be8 36.Bh7+ Kh8 37.Rc2 Rb3 38.Re2 Bf7 39.Bd2±]
29...Nb8 30.g4 Na3 31.Bd1! hxg4 32.Nxg4 Nd7 33.Qh3 Qe7 34.h5 gxh5 35.Qxh5 f6 36.Qh7+ Kf8 37.Nh6 [37.Nh6! Ke8 (37...Bxh6 38.Qh8#) 38.Ng8 Nf8 (38...Qd8 39.Bh5+ Kf8 40.Nxe6#) 39.Qh5+ Kd8 40.Nxe7] 1–0
[20.Nf1 bxa4!? 21.Bf4 Rb8 22.Bc1 Rab7 23.Qe3 Nc7 24.N1h2 Rxb2 25.Bxb2 Rxb2 26.Bxa4 Bxa4 27.Rxa4 Qf8 28.Rea1 h5 29.Qc1 Rb3 30.Rb1 Bh6 31.Qc2 Rxb1+ 32.Qxb1 Qb8 33.Qa1±; 20.Bf4 bxa4 21.Nf1 Rb8 22.Bxa4 Bxa4 23.Rxa4²]
20...b4 [Black tries to get some counterplay in the queenside.]
21.Bf4 Rb8 22.Qe3 [22.Nh2]
22...bxc3 23.bxc3 Rb2 24.Rec1 Nc7 25.Nf1 Nb5 26.N1h2 Qf8 27.Ba4 [27.Ng4 h5 28.Ngh2 Rb7 (28...Na3 29.Bd1) 29.g4±]
27...Rb7 28.h4 [28.Ng4! h5 29.Ngh2]
28...h5 29.Ng5 [29.g4! Qe8 30.Bc2 Qe7 31.gxh5 gxh5 32.Ng5 f6 33.exf6 Nxf6 34.Nhf3 Ng4 35.Qe1 Be8 36.Bh7+ Kh8 37.Rc2 Rb3 38.Re2 Bf7 39.Bd2±]
29...Nb8 30.g4 Na3 31.Bd1! hxg4 32.Nxg4 Nd7 33.Qh3 Qe7 34.h5 gxh5 35.Qxh5 f6 36.Qh7+ Kf8 37.Nh6 [37.Nh6! Ke8 (37...Bxh6 38.Qh8#) 38.Ng8 Nf8 (38...Qd8 39.Bh5+ Kf8 40.Nxe6#) 39.Qh5+ Kd8 40.Nxe7] 1–0
34.e4!? [34.exd4! Nd5 35.Ra4 h5 36.h4 Nc3 37.Ra5 Ne2+ 38.Kf2 Nxd4 39.Nc7 g6 (39...Rxb4?? 40.Ra8+ Ke7 41.Nd5++–) 40.Nd5 Rb8 41.Rc5±; 34.Kf2 dxe3+ 35.Kxe3 Nd5+ 36.Ke4 Nxb4 37.Nc5 Rb5 38.Nd7+ Ke7 39.Ne5 f6 40.Ra7+ Ke6 41.Nc4 Rc5 42.Kd4 Rg5 43.Kc3 Nd5+=]
34...Nh5 35.Nc7 Nf4 36.g3 Ne2+ 37.Kf2 Nc3 38.Na6? [38.Ra8+ Ke7 39.Ra7 Kd8 40.Nd5 Nxd5 41.exd5 Rxb4 42.Rxf7 Rb2+ 43.Ke1 g5 44.Rf6 Rb3 45.h4 gxh4 46.gxh4 h5²]
38...g5 39.e5 f6 40.exf6 Kf7 41.Ke1 Rxf6 42.Nc7?? [42.f4 gxf4 43.gxf4 Rxf4 44.Nc5 Rf3 45.h4 Nd5 46.Ra7+ Ke8 47.Rb7=]
42...Rxf3–+ 43.b5 Rxg3 44.Kf1 Rxh3 45.Kg2 Re3 46.Rf1+ Ke7 47.b6 Re2+ 48.Rf2 Rxf2+ 49.Kxf2 Ne4+ 50.Kf3 Nc5 51.Nb5 d3 52.Ke3 Kd7 53.Nd4 h5 54.Nf3 g4 55.Ne5+ Kc8 56.Ng6 Kb7 0–1
34...Nh5 35.Nc7 Nf4 36.g3 Ne2+ 37.Kf2 Nc3 38.Na6? [38.Ra8+ Ke7 39.Ra7 Kd8 40.Nd5 Nxd5 41.exd5 Rxb4 42.Rxf7 Rb2+ 43.Ke1 g5 44.Rf6 Rb3 45.h4 gxh4 46.gxh4 h5²]
38...g5 39.e5 f6 40.exf6 Kf7 41.Ke1 Rxf6 42.Nc7?? [42.f4 gxf4 43.gxf4 Rxf4 44.Nc5 Rf3 45.h4 Nd5 46.Ra7+ Ke8 47.Rb7=]
42...Rxf3–+ 43.b5 Rxg3 44.Kf1 Rxh3 45.Kg2 Re3 46.Rf1+ Ke7 47.b6 Re2+ 48.Rf2 Rxf2+ 49.Kxf2 Ne4+ 50.Kf3 Nc5 51.Nb5 d3 52.Ke3 Kd7 53.Nd4 h5 54.Nf3 g4 55.Ne5+ Kc8 56.Ng6 Kb7 0–1
Unity Chess Strategy Multiple Choice 75
public poll
A)Nb5 – 8
👍👍👍👍👍👍👍 62%
@shahrook, @Jasemsa, @mahyarebrahimi1983, @ali_arghavani, @WataxPin, Hansika, Mohammad mahdi, Sanjana
B)d6 – 3
👍👍👍 23%
@Sh39r, Jayden, Vincent
C)Nc6 – 2
👍👍 15%
@Kasra_note9, @h_a_d_I_1169
👥 13 people voted so far.
public poll
A)Nb5 – 8
👍👍👍👍👍👍👍 62%
@shahrook, @Jasemsa, @mahyarebrahimi1983, @ali_arghavani, @WataxPin, Hansika, Mohammad mahdi, Sanjana
B)d6 – 3
👍👍👍 23%
@Sh39r, Jayden, Vincent
C)Nc6 – 2
👍👍 15%
@Kasra_note9, @h_a_d_I_1169
👥 13 people voted so far.
Unity Chess Endgame Multiple Choice 75
public poll
A)Qa8 – 8
👍👍👍👍👍👍👍 62%
@shahrook, @Jasemsa, @shahramabdo, @flowchess, @Kamrankazemi1990, @WataxPin, Mohammad mahdi, Sanjana
B)Nh5 – 3
👍👍👍 23%
@Sh39r, @Kasra_Germany, @h_a_d_I_1169
C)Qe4 – 2
👍👍 15%
@mahyarebrahimi1983, Vincent
👥 13 people voted so far.
public poll
A)Qa8 – 8
👍👍👍👍👍👍👍 62%
@shahrook, @Jasemsa, @shahramabdo, @flowchess, @Kamrankazemi1990, @WataxPin, Mohammad mahdi, Sanjana
B)Nh5 – 3
👍👍👍 23%
@Sh39r, @Kasra_Germany, @h_a_d_I_1169
C)Qe4 – 2
👍👍 15%
@mahyarebrahimi1983, Vincent
👥 13 people voted so far.
Chess players, by Anthony Rosenbaum (died 1888), given to the National Portrait Gallery, London in 1939.
https://goo.gl/JAz2a9
@UnityChess
https://goo.gl/JAz2a9
@UnityChess
At the 1982 London (Phillips & Drew) tournament April 1982. Yasser Seirawan (USA) and Jan Timman (Netherlands) analyse their 9th-round game, which was drawn in 71 moves.
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