Dutch Championship 2017 Urk round 3

Ron Heusdens - Anton van Berkel 2-0

1.32-28 18-23 2.33-29 23x32 3.37x28 20-25 4.41-37 12-18 5.37-32 16-21 6.29-24 19x30 7.35x24 21-26 8.39-33 26x37 9.42x31 7-12 10.46-41 1-7 11.41-37 14-20 12.43-39 20x29 13.33x24 17-21 14.47-42 21-26 15.39-33 12-17 16.44-39

diagram 1
diagram 1

18-22!?

A rather ambitious move. It's definitely not going to be easy to find a constructive plan against the simple white attack.

17.49-43 10-14 18.31-27 22x31 19.36x27 8-12 20.27-21 13-18 21.21-16 9-13 22.37-31 26x37 23.42x31 3-8 24.31-26 5-10 25.34-29 14-20 26.48-42 10-14 27.50-44 18-22 28.42-37 4-9 29.37-31 13-18 30.40-34 9-13 31.44-40 14-19 32.40-35 19x30 33.35x24 13-19 34.24x13 8x19 35.31-27 22x31 36.26x37

diagram 2
diagram 2

20-24?

Van Berkel has managed to neutralize the white attack. But here it was necessary to close the position using 18-23! 37.29x18 12x23 38.45-40 20-24 39.28-22 17x28 40.33x22 11-17 41.22x11 6x17 and white only has a small advantage.

37.29x20 25x14 38.45-40!

Heusdens prepares the decisive attack. All white pieces are active now, and there is no way for black anymore to stop them.

18-22 39.34-29 22-27 40.32x21 17x26 41.38-32 2-8 42.43-38 8-13 43.40-35 11-17 44.35-30!

The combination 44.28-23 19x28 45.33x2 26-31 46.2x10 31x44 47.10-4! was also winning, but this is much more efficient.

6-11 45.29-24

Martijn van IJzendoorn - Ben Provoost 2-0

1.32-28 17-21 2.37-32 21-26 3.41-37 16-21 4.31-27 11-16 5.27-22 18x27 6.28-23 19x28 7.33x31 14-19 8.39-33 12-18 9.44-39 10-14 10.32-28 7-12 11.38-32 21-27 12.32x21 26x17 13.46-41 5-10 14.42-38 19-23 15.28x19 14x23 16.37-32 1-7 17.41-37 9-14 18.47-42 4-9 19.50-44 17-22 20.34-30 14-19 21.30-25 10-14 22.33-29 23x34 23.40x29 19-24 24.45-40 24x33 25.39x17 12x21 26.35-30 18-23 27.44-39 14-19 28.25x14 9x20 29.40-35 7-12 30.49-44 20-25 31.31-26 25x34 32.39x30 3-9 33.26x17 12x21 34.36-31 9-14 35.44-39 8-12 36.38-33

Martijn van IJzendoorn - Ben Provoost 2-0 (2017)
diagram 3

21-27(?)

Provoost voluntarily accepts a passive position. Indeed a logical variant like 15-20 36.31-27 20-24 37.33-28 12-18 38.39-34 2-7 39.30-25 7-12 40.34-30 6-11 41.37-31 21-26 42.43-38 26x37 43.42x31 11-17 44.31-26 looks dangerous for black, although it is still a draw after 23-29 45.48-43 18-23 46.43-39 29-34 47.39-33 34-40 48.35x44 24x35 49.44-39 12-18 50.39-34 16-21 51.27x16 18-22.

However, a forced way to make a draw was 12-18 36.31-27 23-28 37.32x12 21x41 38.42-37 41x32 39.33-28 32x23 40.12-8 16-21! etc.

37.31x22 23-28 38.32x23 19x17 39.37-32 17-22 40.32-28 2-8 41.28x17 12x21 42.33-29! 6-11 43.29-24! 21-27 44.42-37 11-17 45.30-25 17-22 46.39-34 8-12 47.34-30

diagram 3
diagram 4

Using a straightforward plan Van IJzendoorn has put large pressure on the black position.

14-19 48.43-38! 12-17(?)

It looked like the logical move 12-18 was prohibited because of the combination 49.38-32 27x38 50.48-42 38x47 51.37-31 47x20 52.25x12, but then black can easily make a draw using 13-18 53.12x23 16-21 etc.

49.25-20 22-28?

The decisive mistake. Black had still a comfortable way to make using 13-18 50.24x13 15x24 51.30x19 18x9 52.38-33 16-21 53.35-30 21-26 54.30-25 27-31 55.48-42 31-36 56.25-20 26-31 57.37x26 36-41 etc.

50.20-14 19x10 51.24-20 15x24 52.30x8 17-21 53.38-32 27x38 54.8-3 21-26 55.3-9 16-21 56.35-30

Hein Meijer - Alexander Baliakin 1-1

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 17-21 5.34-29 23x34 6.39x30 11-17 7.44-39 7-11 8.50-44 1-7 9.40-34 20-25 10.44-40 21-26 11.32-28 17-22 12.28x17 11x22 13.30-24 5-10 14.31-27 22x31 15.36x27 6-11 16.46-41 11-17

Hein Meijer - Alexander Baliakin 1--1+ (2017)
diagram 5

17.41-36

It looks like white has a simple attack, but it's not so clear for white how to proceed.

14-20 18.49-44

Perhaps 18.35-30 20x29 19.34x23 18x29 20.33x24 25x34 21.40x29 was a better plan here.

20x29 19.33x24 7-11 20.34-30 25x34 21.40x29 10-14 22.44-40 17-21 23.47-41 21x32 24.37x28 11-17 25.41-37 17-22 26.28x17 12x21

diagram 5
diagram 6

Baliakin clearly has the initiative now.

27.35-30 18-22 28.30-25 13-18 29.39-33 8-13 30.24-20 15x24 31.29x20 2-8 32.40-34 8-12 33.45-40 22-27 34.37-32 18-22 35.40-35 12-18 36.34-29 13-19 37.35-30 3-8

diagram 7
diagram 7

38.20-15(?)

It turns out that here it was safer to play 38.29-24 8-13 39.32-28 18-23 40.28x17 21x12 41.20-15 12-17 42.33-29 23x34 43.30x39 19x30 44.25x34 etc.

19-23 39.29-24 8-13 40.43-39 26-31 41.39-34 21-26 42.32x21 16x27(?)

This allows white a problematic escape. Perhaps 26x17 43.36x27 22x31 44.42-37 31x42 45.38x47 16-21! would have given more practical chances.

43.34-29 23x34 44.30x39 31-37 45.42x31 26x37 46.48-42!! 37x48 47.15-10 48x19 48.10-5 19-46 49.5x7 46-5 50.7-40 5-28 51.40-18 28x50 52.38-32 27x38 53.18x43 13-19 54.43-32 9-14 55.25-20 14x25 56.32x5 25-30

© Wieger Wesselink http://10x10.org