Dutch Championship 2017 Urk round 1
Hein Meijer - Anton van Berkel 0-2
≡ 1.33-29 18-22 2.31-26 20-24 3.29x20 15x24 4.34-30 13-18 5.36-31 18-23 6.32-27 12-18 7.37-32 8-13 8.41-37 7-12 9.40-34 1-7 10.44-40 14-20 11.30-25 10-15 12.25x14 9x20 13.34-30 4-9 14.46-41 5-10 15.30-25 10-14 16.41-36 2-8 17.47-41
This attractive position occurred before in Luteijn - de Hardt 2-0 (1993). In that game the black player chose for the risky move 23-29!? 18.39-33 24-30 19.25x23 19x39 20.43x34 22-28 21.32x23 18x29 22.34x23 17-21 23.26x17 12x43 24.48x39 20-24 25.39-34 7-12 26.34-30 14-20 27.30x19 13x24 28.40-34 9-13 29.50-44 24-29 30.44-39 29x18 The position is equal now, but white managed to win the game later.
≡ 23-28 18.32x23 19x28 19.39-34?
This move is very inaccurate. Now black has a combination with 17-21 20.26x17 12x32 21.38x27 16-21 22.27x16 22-27 23.31x33 24-30 24.35x24 20x47. Of course white can capture the black king using 25.40-35, but the remaining position is significantly better for black.
≡ 13-19? 20.34-30 17-21 21.26x17 12x32 22.38x27 11-17 23.43-38 17-21 24.49-43 21x32 25.38x27 6-11 26.40-34 11-17 27.43-39 8-12
After this move black will grab the initiative. With ≡ 28.31-26 22x31 29.36x27 3-8 30.39-33 28x39 31.34x43 white could have kept more pressure on the black position.
Of course Van Berkel takes the opportunity to remove the lock on his left wing. After the next exchange he has a tempo advantage of 10, which guarantees him a long term advantage.
30.30-24 19x30 31.25x23 18x29 32.27x18 12x23 33.37-32 9-13 34.31-26 13-18 35.42-38 29-33 36.38x29 23x34 37.50-44 20-24 38.41-37 14-19 39.43-38 15-20 40.44-39 34x43 41.48x39 3-8 42.45-40 7-12
Black still has a small advantage, since it is not immediately clear how white should develop the pieces on 36 and 37. For example after 43.37-31 18-23 44.31-27? is not possible due to 23-28 45.32x25 17-21 46.26x17 12x45. But under normal circumstances this would be insufficient against an experienced grandmaster like Meijer.
≡ 43.40-34 20-25 44.39-33 8-13 45.34-29 17-22 46.29x20 25x14 47.32-28!? 12-17 48.37-31 19-24!
The situation is getting tricky for white.
This is already lost. It was necessary to make a draw using ≡ 50.36x27 13-19 51.26-21! 17x26 52.28-22 14-20 53.22x13 19x8 54.38-32, but that was far from obvious.
The correct plan was ≡ 16-21 51.37-31 ( ≡ 51.36-31? 13-19 also loses) ≡ 13-19 52.38-32 18-23 53.32-27 21x32 54.28x37 17-22 etc.
≡ 51.38-32? 17-21 52.37-31 21-27 53.32x21 16x27 54.31x22 18x27 55.35-30 24x35 56.33-29 27-32 57.28x37 35-40 58.37-32 40-44
Martijn van IJzendoorn - Nico Knoops 2-0
≡ 1.34-30 20-25 2.30-24 19x30 3.35x24 18-22 4.31-26 22-27 5.32x21 16x27 6.37-31 14-19 7.31x22 17x28 8.33x22 19x30 9.40-35 10-14 10.35x24 14-19 11.41-37 19x30
The players have chosen for a very romantic game type.
12.37-32 5-10 13.46-41 10-14 14.41-37 13-19 15.45-40 8-13 16.38-33 12-18
It doesn't seem logical to allow white to get rid of the piece on 22. But it was not easy for black to find a more constructive plan.
17.32-28 18x27 18.28-23 19x28 19.33x31 14-19 20.42-38 7-12 21.37-32 12-18 22.47-42 9-14 23.38-33 4-9 24.42-38 2-8 25.32-27 19-23 26.38-32 14-19 27.40-34 15-20 28.43-38 20-24 29.27-21 8-12 30.21-16 1-7 31.33-28 3-8 32.31-27 11-17
Objectively the plan ≡ 33.44-40 30-35 34.49-44 was a bit better here. But probably Van IJzendoorn already anticipated the tactical possibilities in the next couple of moves.
It's hard to believe that this is already the decisive mistake. The right move was ≡ 9-14! and black has no problems, for example 34.36-31 30-35 35.31-27 24-29 etc.
Now 18-22? is not possible due to 35.36-31 22x33 36.38x18 13x22 37.32-28! 22x33 38.39x28 8-13 39.31-27 13-18 40.50-45! and 24-30 fails due to 41.27-22 30x50 42.22x4 50x22 43.4x36 W+.
This not only neutralizes 23-29? but also ≡ 24-29? due to the combination 36.37-31 29x40 37.39-34 40x29 38.38-33 29x27 39.31x2 23x32 40.21-17 12x21 41.16x38
And now 23-29? 37.34x23 18x29 still fails due to the effective combination 38.44-39 29-34 or? 39.39x30 25x34 40.28-22! 17x39 41.21-17 11x22 42.49-43 39x48 43.38-33 48x31 44.36x40 35x44 45.50x39 W+
≡ 18-22 37.34-30! 25x34 38.33-29 24x31 39.36x20 23-29 40.20-15
Auke Scholma - Wouter Sipma 0-2
≡ 1.33-29 19-23 2.35-30 13-19 3.30-24 19x30 4.34x25 23x34 5.40x29 8-13 6.38-33 20-24 7.29x20 15x24 8.42-38 2-8 9.45-40 17-21 10.47-42 21-26 11.31-27 18-23 12.40-34 12-18 13.34-29 23x34 14.39x19 14x23 15.25-20 7-12 16.20-15 10-14 17.44-39 11-17
It was probably more realistic to deny black to gain control of square 24 using ≡ 18.39-34. Of course this allows black to simplify the position with 14-20 19.15x24 23-29 20.34x23 18x20 21.27-21 (what else?) 16x27 22.32x21, which is probably why Scholma chose a different move.
≡ 14-19 19.39-34 19-24 20.44-40 17-21 21.40-35 23-29! 22.34x23 18x29 23.43-39 5-10 24.27-22 10-14
The white position can not handle this. It was necessary to develop the pieces of the white left wing starting with something like ≡ 25.32-28 14-20 26.37-31 26x37 27.41x32.
≡ 6-11 26.50-45 13-19! 27.45-40 8-13! 28.39-34 13-18 29.22x13 9x18 30.34x23 18x29 31.36-31 14-20 32.40-34 29x40 33.35x44 12-18 34.31-27 20-25 35.38-33 18-23!
The black moves are both logical and strong. The white position is already completely lost.
36.48-43 25-30 37.27-22 3-9 38.42-38 9-13 39.41-36 1-6 40.43-39 23-29 41.37-31 26x37 42.32x41 11-17 43.22x11 16x7 44.36-31 30-34 45.39x30 24x35 46.33x24 19x30 47.28-23 30-34
Ben Provoost - Marino Barkel 0-2
≡ 1.32-28 17-22 2.28x17 11x22 3.37-32 6-11 4.41-37 12-17 5.34-30 7-12 6.30-25 1-6 7.46-41 22-27 8.31x22 18x27 9.32x21 17x26 10.38-32 13-18 11.43-38 9-13 12.36-31 4-9 13.31-27 11-17 14.41-36 17-21 15.49-43 2-7 16.33-28 19-23 17.28x19 14x23 18.25x14 10x19 19.47-41 19-24 20.39-33 13-19
A rare case of short circuit for the white player.
24x35 22.44-39 35x44 23.37-31 26x28
This is good enough to win the game, but there was nothing wrong with ≡ 26x46.
≡ 24.33x11 21x32 25.38x27 16x7 26.43-38 44x33 27.38x18 12x23 28.41-37 5-10 29.42-38 15-20 30.37-32 20-24 31.48-43 10-14 32.43-39 9-13 33.45-40 3-8 34.36-31 8-12 35.50-45 6-11 36.40-35 11-17 37.31-26 13-18 38.27-21 24-29 39.21-16 19-24 40.45-40 14-20 41.40-34 29x40 42.35x44 23-29 43.44-40 24-30 44.40-35 20-24 45.32-28 18-22 46.16-11 22x42 47.11x2 42-48 48.2-16 48x34 49.16-32 34-39 50.32-14 30-34 51.14-37 39-50
Waldo Aliar - Alexander Baliakin 1-1
≡ 1.32-28 17-21 2.37-32 11-17 3.31-26 18-22 4.41-37 7-11 5.34-29 1-7 6.46-41 20-25 7.40-34 14-20 8.32-27 21x23 9.29x27 13-18 10.44-40 10-14 11.38-32 19-23 12.43-38 5-10 13.49-43 14-19 14.36-31 9-13 15.41-36 17-22 16.50-44 10-14 17.33-28 22x33 18.39x28 4-9 19.44-39 20-24 20.47-41 14-20 21.27-21 16x27 22.31x22 18x27 23.32x21 23x32 24.37x28 12-18 25.21-16 11-17 26.34-30 25x34 27.39x30
This is of course good for black. But there was also much to say for the logical ≡ 7-11 28.16x7 2x11 29.30-25 9-14 30.38-33 24-29 31.33x24 20x29 32.40-34 29x40 33.35x44 15-20 34.45-40 20-24 and white faces a tough defense.
≡ 28.38-33 25x34 29.40x20 15x24 30.45-40 9-14 31.40-34 14-20 32.43-39 8-12 33.34-30 20-25 34.48-43 25x34 35.39x30 18-23 36.42-37 23x32 37.37x28 12-18 38.41-37 7-11 39.16x7 2x11
The white position looks absolutely hopeless due to the threat ≡ 18-23 37-32 23-29 43-38 29-34 30x39 24-29 33x24 19x30 35x24 17-21 45.26x17 11x42. But Aliar finds a miraculous escape.
≡ 18-23 41.43-39 23x32 42.39-34 32-38 43.33x42 13-18 44.31-27 11-16 45.42-37 6-11 46.30-25 3-9 47.35-30!
A second piece sacrifice is needed to secure the draw.
24x35 48.25-20 19-23 49.37-32 35-40 50.34x45 23-29 51.45-40 17-22 52.20-15 22x31 53.36x27 9-14 54.32-28 11-17 55.28-23
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