World championship 2013 finals round 1
Atse had already the initiative, due to a huge tempo advantage of 10. But Ano still had a solid position, without any structural weaknesses. That changed after the next passive exchange. 33.32-27(?) 22x31 34.33-28 23x32 35.38x36 Now the weak piece on 36 gives black a tangible advantage. 18-23 36.41-37 15-20 37.43-38 13-19 38.49-43 8-12 39.47-42 17-21 40.39-33 20-24 41.38-32 4-10 Note that white cannot take control of the squares 27 and 28. After 42.36-31? black responds with 23-28! ≡ 42.42-38 12-18 43.48-42? This is losing. It was necessary to play ≡ 43.43-39 21-27 44.32x21 16x27 45.37-32 18-22 46.32x21 26x17 and white can stop the black attack with the active moves 47.36-31! 17-21 48.38-32! ≡ 21-27! 44.32x21 16x27 45.37-32 24-29! 46.33x31 26x39 47.32-27 39-44 48.30-24 10-15 49.24-19 23-28 50.19x10 15x4 51.27-21 28-32 52.38x27 44-50 53.36-31 4-9 54.21-16 9-14 55.31-26 14-19 and white resigned.
Here Ndjofang played 21.31-27?! 22x31 22.36x27 in an attempt to seduce his opponent to play 25-30 23.34x25 19-23 24.29x18 13x31 This leads to an extremely complicated position, for example 25.39-34 31-36 26.33-28 24-30 27.35x24 20x29 28.34x23 9-13 29.44-39 26-31 30.37x26 36-41 and a lot of calculation is needed to assess the value of the position. ≡ 4-10 23.32-28 7-11 24.37-31 26x37 25.42x31 12-17 26.48-42 8-12 27.31-26 11-16 28.27-22 2-8 29.22x11 6x17 30.28-23 After ≡ 30.38-32 the most likely reaction is the exchange 17-22 31.28x17 12x21 32.26x17 19-23 33.29x18 13x11. Therefore white decides to make an exchange himself, in order to keep a small advantage. ≡ 19x28 31.33x11 16x7 32.26-21 24x33 33.39x28 14-19 34.38-32 13-18 35.42-37 9-14 36.44-39 19-23 37.28x19 14x23 38.39-33 10-14 39.33-28 14-19 40.37-31 7-11 41.31-27 11-17 42.21-16 20-24 43.43-38? Here ≡ 43.34-30! 25x34 44.40x20 15x24 45.43-39 was a promising alternative. Then black must defend the position with 23-29 46.45-40! 8-13 47.39-34 29-33! 48.28x39 17-22! 49.27-21 19-23 but this is not easy to find. ≡ 8-13? Just like in his game with Meurs in the preliminaries Buzinskij makes an inexplicable mistake. 44.27-21! Ndjofang claims the victory using a standard combination. 17x26 45.28-22 18x27 46.32x21 26x17 47.34-30 25x34 48.40x9 and black resigned.
© Wieger Wesselink https://10x10.org