Unity Chess Multiple Choice 629
public poll
A: Bd2 – 6
👍👍👍👍👍👍👍 60%
Jonas, Gavin, @AryanLeekha, Rachel, Zhenrui, Sanjana
B: Be3 – 3
👍👍👍👍 30%
@Sophia_Peng, @RichardPeng, Raymond
C: Bg5 – 1
👍 10%
@Afshin3333
👥 10 people voted so far.
public poll
A: Bd2 – 6
👍👍👍👍👍👍👍 60%
Jonas, Gavin, @AryanLeekha, Rachel, Zhenrui, Sanjana
B: Be3 – 3
👍👍👍👍 30%
@Sophia_Peng, @RichardPeng, Raymond
C: Bg5 – 1
👍 10%
@Afshin3333
👥 10 people voted so far.
Unity Chess Multiple Choice 630
public poll
C: Ne4 – 9
👍👍👍👍👍👍👍 75%
@Mehrdad0832, Jonas, Gavin, @Sophia_Peng, @AryanLeekha, Rachel, Zhenrui, Sanjana, @Raymond666
A: Nh4 – 2
👍👍 17%
@RichardPeng, Atharva
B: Qd2 – 1
👍 8%
@Afshin3333
👥 12 people voted so far.
public poll
C: Ne4 – 9
👍👍👍👍👍👍👍 75%
@Mehrdad0832, Jonas, Gavin, @Sophia_Peng, @AryanLeekha, Rachel, Zhenrui, Sanjana, @Raymond666
A: Nh4 – 2
👍👍 17%
@RichardPeng, Atharva
B: Qd2 – 1
👍 8%
@Afshin3333
👥 12 people voted so far.
Rd 4 at Sinquefield Cup: all games drawn between Anand-Carlsen (54 moves in knight vs pawns ending), Mamedyarov-Aronian (24 move perpetual check), Caruana-Nakamura (49 moves), Grischuk-Vachier_Lagrave (25 move perpetual check), and So-Karjakin (48 move perpetual check).
12. Nfg5!
The correct and interesting continuation.
12...hxg5 13. Qh5 Qc8 14. Nf6+ gxf6 15. Qg6+ Kh8 16. Qh6+ Kg8 17.Qg6+ Kh8 1/2-1/2
The correct and interesting continuation.
12...hxg5 13. Qh5 Qc8 14. Nf6+ gxf6 15. Qg6+ Kh8 16. Qh6+ Kg8 17.Qg6+ Kh8 1/2-1/2
39... Rxb2?
Grischuk missed a golden opportunity to win the game. He should have defended his f3-pawn and set a trap as well:
39... Rh3!
A) 40. Kf2 Rxg1 41. Kxg1 f2+ 42. Kxf2 Rxd3 -+
B) 40. Rd1 Rg3 41. Kf2 Rg2+ 42. Kxf3 Rhxg1 -+
40. Rxf3+ Ke7 41. Rf7+ Kd6 42. Rxg7 Rb1+ 43. Ke2 Rhxg1 44. g5 =
Grischuk missed a golden opportunity to win the game. He should have defended his f3-pawn and set a trap as well:
39... Rh3!
A) 40. Kf2 Rxg1 41. Kxg1 f2+ 42. Kxf2 Rxd3 -+
B) 40. Rd1 Rg3 41. Kf2 Rg2+ 42. Kxf3 Rhxg1 -+
40. Rxf3+ Ke7 41. Rf7+ Kd6 42. Rxg7 Rb1+ 43. Ke2 Rhxg1 44. g5 =
43... Re2
43... Be3!+ 44. Kh1 Rf2 with an easy win for Black:
A) 45. Nh2 Bf4 46. g5+ Kxg5 47. Ng4 Re2 -+
B) 45. Nh4 Bxd4-+
C) 45. g5+ Kh5 46.Nh2 Bf4 47. Ng4 Re2 48. Rb1 Kh4 or K×g5 -+
44. Kf1 Re4 45. Rb3 Kg7 46.Kf2
However, Black has still kept his advantage.
43... Be3!+ 44. Kh1 Rf2 with an easy win for Black:
A) 45. Nh2 Bf4 46. g5+ Kxg5 47. Ng4 Re2 -+
B) 45. Nh4 Bxd4-+
C) 45. g5+ Kh5 46.Nh2 Bf4 47. Ng4 Re2 48. Rb1 Kh4 or K×g5 -+
44. Kf1 Re4 45. Rb3 Kg7 46.Kf2
However, Black has still kept his advantage.
47. Qxe4??
Karjakin could have easily won the game with 47.b7.
A) 47...Rg2+ 48.Kh1 Rg8 49. b8=Q Rxb8 50.Kxg2 +-
B) 47... Rd3 48. Qe5 Rd2+ 49. Kh3 Rd3+ 50. Kh4 +-
47... R3g4 48. Qe7+ Kh6 49. Qe3+ R6g5 =
Karjakin could have easily won the game with 47.b7.
A) 47...Rg2+ 48.Kh1 Rg8 49. b8=Q Rxb8 50.Kxg2 +-
B) 47... Rd3 48. Qe5 Rd2+ 49. Kh3 Rd3+ 50. Kh4 +-
47... R3g4 48. Qe7+ Kh6 49. Qe3+ R6g5 =
50. b7??
But now, this move is a fatal blunder. 😔
50. Qe6+ Kh7 51. Qf7+ Kh6 52. Qf6+ draw by Perpetual Check.
50... Rh4+ 0-1
But now, this move is a fatal blunder. 😔
50. Qe6+ Kh7 51. Qf7+ Kh6 52. Qf6+ draw by Perpetual Check.
50... Rh4+ 0-1
14.Bd2!
This is a very important prophylactic move.
Gulko: If I had played 14.Be3?! it would have allowed him to exchange off the dark-squared bishop and develop his knight to e7; e.g. 14...Bb4! 15.Rac1 Nge7 with equality.
14...Nh6 15.Bxh6!
The most important element is disturbing the coordination of his rooks. Now I have the direct plan of taking over the c-file. I have the more pleasant position with a clear-cut plan, whereas he must come up with something quite sophisticated.
15...Rxh6 16.Rac1 Kf8 17.Na4
Gulko: Now my knight is heading to c5 or my queen to b5 with a lot of pressure on the queenside.
This is a very important prophylactic move.
Gulko: If I had played 14.Be3?! it would have allowed him to exchange off the dark-squared bishop and develop his knight to e7; e.g. 14...Bb4! 15.Rac1 Nge7 with equality.
14...Nh6 15.Bxh6!
The most important element is disturbing the coordination of his rooks. Now I have the direct plan of taking over the c-file. I have the more pleasant position with a clear-cut plan, whereas he must come up with something quite sophisticated.
15...Rxh6 16.Rac1 Kf8 17.Na4
Gulko: Now my knight is heading to c5 or my queen to b5 with a lot of pressure on the queenside.