World championship match 2013 round 4

In the fourth round Georgiev managed to strike back in the game with normal time controls.

Schwarzman - Georgiev 0-2
Alexander Schwarzman - Alexander Georgiev 0-2

After 40 moves an almost symmetrical position appeared on the board, and it did not look like a decision was still possible. 41.33-28 2-7 42.39-33(?) It was more flexible to play   42.49-44 18-23 43.44-40, to keep the options open.   18-23 43.48-43 7-11 44.43-39 11-17! Georgiev deliberately avoids the symmetrical position after   4-9 45.49-44 13-18 46.44-40 9-13, since it is absolutely equal.   45.49-44 17-21 46.44-40 4-10 47.40-34 12-17! And not   10-15? due to 48.35-30 24x35 49.33-29 12-18 50.29-24 19x30 51.28x8 35-40 52.34x45 18-23 53.25x34 23-28 54.32x23 21x41 with some advantage for white.   48.34-30 Here   48.27-22? was not possible due to 21-27 49.32x12 23x43 50.39x48 24-30 51.35x24 19x8 B+   23-29! 49.28-22 Here   49.27-22 10-15 50.22x11 16x7 51.28-22 15-20 52.32-28 7-12 53.37-32 26-31 54.22-17 was also possible for white.   17x28 50.32x34 21x41 51.34-29

diagram 1
diagram 1

14-20! This maneuver has one precedence, in a game between Domchev and Provoost in 2008. 52.25x5 41-46 53.5x23 46x19 54.29x20 26-31 The position is still a draw now, but white has to get into action before black makes a second king. Domchev managed to do that using 50.30-25! 31-36 51.20-15 19-5 52.35-30! 36-41 53.33-28 5x34 54.30x39 41-46 55.39-33 13-18 56.25-20 and black was one move too late to win the game.

  55.39-34(?) The plan that Schwarzman chooses is too slow. 31-36 56.34-29! Since   56.30-25? loses after 36-41 57.33-28 19x30 58.35x24 41-46 59.20-15 46-41 60.25-20 41-19 B+.   19-5 57.29-24? The decisive mistake. With   57.20-15 36-41 58.33-28! 5x25 59.15-10 41-46 60.10-4 13-19 61.29-24 19x30 62.35x24 a draw was still possible.   36-41 58.30-25 41-46! With two black kings on the long diagonal the white position is hopeless. 59.20-15 16-21 60.33-29 21-26 61.24-20 26-31 62.29-24 31-36

© Wieger Wesselink http://10x10.org