Round 8 World Cup Ufa

Bobkow - Valneris 0-2
Bobkow - Valneris 0-2

After 31.38-32? Valneris forced a win using 18-22! 32.24-19(?) Here   32.32-28? was not possible due to 21-27 33.28x17 12x21 34.31x22 13-19 35.24x13 8x17 B+ and after   32.33-28? 22x33 33.39x28 21-27! 34.32x21 16x27 35.31x22 13-19 36.24x13 9x27 the threat   27-31! 36x27 12-18 23x3 2-7 3x20 15x42 is decisive.   13x24 33.29x20 15x24 34.33-29 24x33 35.39x17 9-13 36.43-38 13-18 37.32-28 18x29 38.37-32 26x37 39.17x26 29-33! 40.28x39 37x28 and black won.

Shaymardanov - Heusdens 1-1
Shaymardanov - Heusdens 1-1

Heusdens made a subtle mistake in this position: 4-9? 48.38-32 29-33 49.28-23 33x44 50.43-39 44x33 51.23-19 and black could not win anymore. The correct move was   4-10! Then 48.38-32 29-33 49.28-23 33x44 50.43-39 44x33 51.23-19 is not possible due to 13-18 52.22x13 33-39 B+. And   48.38-32 29-33 49.28-23 33x44 50.23-18 13-19 leaves black very good opportunities to win the game.

Kolesov - Georgiev 1-1
Kolesov - Georgiev 1-1

World champion Georgiev has set the board on fire. But in this complicated position he did not find the right plan for black 3-9(?) Note that   30-35? was not possible due to 34.33-29 35x42 35.29x29 W+.   34.40-35 15-20? 35.47-41! 23-28 36.33x22 17x28 37.26x17 11x22 38.27x18 13x22 39.32x23 19x28 40.31-26! Kolesov has now a winning advantage due to the weak black left wing. 9-13 41.41-36 13-19 42.38-33 6-11 43.37-31 22-27 44.31x22 28x17 45.43-38 17-22 46.36-31 19-23 47.38-32 14-19 48.25x14 19x10 49.34x25 10-14 50.39-34? Until now Kolesov had done everything right. But the last move was a mistake. With either   50.31-27 22x31 51.26x37 or   50.32-28! 23x32 51.31-27 22x31 52.26x28 he could have won the game.   11-17! 51.32-28 23x32 52.34-29 22-28 53.33x11 24x33 54.11-7 32-38 55.7-1 38-42 56.1-45 42-47 =

Skliarow - Gantwarg 0-2
Skliarow - Gantwarg 0-2

Apparently both Gantwarg and Skliarow missed the simple combination for white after 14-19? 18.36-31! 19x30 19.29-24 30x19 20.31-27 22x31 21.28-22 17x28 22.32x5 W+. The game ended in a victory for black after   18.40-35 19x30 19.35x24.

© Wieger Wesselink http://10x10.org