Riga World Cup 2023 fragments
Below a number of interesting fragments of the games in Riga can be found.
Jitse Slump - Ivan Surov 2-0 (2023)
After
2-7? Slump won using an elementary combination:
20.34-30
24x35
21.33-29
23x34
22.27-22
18x27
23.32x21
16x27
24.28-23
19x28
25.38-32
27x38
26.42x2
Guntis Bringulis - Emre Hageman 0-2 (2023)
After
48.36-31?
17-21! Hageman won the game with the combination
49.31-26
22-27!
50.26x17
14-19
51.32x21
18-22
52.17x28
23x45 . A narrow draw for white was still possible after
≡
48.40-34
17-21
49.34-30
14-19
50.30-25
22-27
51.35-30
24x35 and now the unexpected defense
52.39-34!
19-24
53.33-28!
13-19
54.28-22! and black can't win.
Kirils Gavlass - Gunars Zalitis 0-2 (2023)
Instead of
3-8? Zalitis could have won beautifully using
≡
24-29!
42.33x13
22x44
43.32-27
21x43
44.48x50
15-20! Now
45.45-40? loses due to
2-8
46.13x2
20-24
47.2x30
25x45 with a threefold opposition. And
≡
45.50-44 doesn't help either, since black plays
20-24! and the necessary move
46.44-39? is prevented using the same combination
2-8
47.13x2
17-22
48.2x30
25x43 B+
Bohdan Panchenkov - Aleksandrs Tabunovs 0-2 (2023)
After
27.38-33? Tabunovs won the game using the well known combination
16-21
28.27x16
14-20!
29.25x23
18x40
30.35x44
22-27
31.31x22
17x50
Arvo Krebe - Raimonds Millers 0-2 (2023)
After
45.36-31? Millers won very convincingly using
13-18!
46.31-27
Here,
≡
46.38-32
17-22! would not make any difference:
47.43-38
8-12
48.31-27
22x31
49.26x37
18-22
50.37-31
16-21 etc.
≡
17-22!
47.38-32
22x31
48.26x37
18-22
49.37-31
16-21! Now after
50.43-38
8-12
51.31-26
12-17 the game is over. Therefore the white player sacrificed a piece with
≡
50.31-27 , but that didn't help to save the game.
Wouter Sipma - Anastase Leclerc 2-0 (2023)
In this classical position, the black position is overdeveloped. It is very instructive how the Dutch grandmaster Sipma takes advantage of that.
35.40-34!
24-29
After
≡
20-25
36.48-43
15-20? white can win using
37.47-41
17-22
38.28x17
12x21
39.33-28
24-29
40.28-22
29x40
41.45x34
8-12
42.22-17!
20-24
43.17x8
13x2
44.38-33
2-7
45.41-36
7-12
46.37-31
26x28
47.33x13
19x8
48.36-31
21x32
49.34-30
25x34
50.39x37
≡
36.33x24
20x40
37.45x34
17-22
38.28x17
12x21
39.38-33
19-24?
This is the decisive mistake. The normal continuation
≡
8-12
40.33-28
12-17
41.39-33
17-22
42.28x17
21x12
43.33-28
15-20
44.48-43
20-24 looks extremely dangerous for black. However, white cannot win. For example
45.47-41
24-29
46.41-36
29x40
47.35x44
23-29!
48.28-23
19x28
49.32x34
12-17
50.43-38
17-22!
51.37-32
22x31
52.36x27
13-19! and black survives.
≡
40.48-43!
15-20
41.47-41!
13-19
42.37-31
26x46
43.34-30
46x28
44.33x2
21x32
45.2-13!!
With this beautiful move Sipma secures the win.
19x8
46.30x37
16-21
47.39-33
Iurii Anikeev - Gunars Zalitis 2-0 (2023)
After
24-30? Anikeev ended the game using the effective combination
39.48-43!
30x48
40.29-23!
48x22
41.28x19
18x29
42.33x15
Vsevolods Mitrevics - Rostyslav Lieshchynskyi 0-2 (2023)
White is in trouble, and in the game white lost after
44.48-42?
24-29!
45.33x24
23-29
46.24x33
14-20
47.25x23
18x47 . But with
≡
44.31-26
11-17
45.48-43!
24-29
46.33x24
23-29
47.24x33
14-20
48.25x23
18x49
49.28-22
17x37
50.30-24
49x21
51.26x19 he could have saved the game.
Renards Helfrekts - Aleksej Domchev 0-2 (2023)
After
34.34-29? Domchev emptied the board using
18-23!
35.29x7
24-29
36.33x24
19x30
37.35x24
8-12
38.7x18
13x35
Victors Mateiko - Martinas Masanauskas 1-1 (2023)
With
10-14? Masanauskas became the victim of a well known opening trap:
8.27-22!
18x27
9.36-31!
27x36
10.32-27
21x32
11.37x10
9-14
12.10x19
13x24
13.30x19
4-10
14.40-34?
But this move is inaccurate. White should have defended the outpost on 19 using
≡
14.44-39
3-9
15.35-30! and black can't play
20-24? due to
16.19-14!
24x33
17.14x5 W+
Aleksandr Ivanov - Guntis Bringulis 1-1 (2023)
After
11-17? Ivanov could have gained a big advantage using a well known scheme:
40.27-21!
16x27
41.31x11
6x17
42.36-31
14-19
43.31-27
19-23
44.28x19
13x24
46.33-28
However,
the computer shows that black can survive this precarious situation using
8-13
47.38-33
4-10!
48.43-39
10-15!
49.28-22
17x28
50.33x22
13-19
51.22x13
19x8
52.39-33
8-13
53.33-28
12-18
54.28-22
13-19
55.22x13
19x8
56.27-22
15-20! (not
≡
8-12?
57.32-27
3-8
58.37-32
8-13
59.32-28
12-18
60.22-17 W+)
≡
57.32-27
20-25!
58.37-32
25-30
59.34x25
24-29 etc.
Kees Thijssen - Yurii Bobkov 0-2 (2023)
In this tricky endgame Thijssen played
55.12-7? This allowed Bobkov to grab both points using
41-46!
56.7-2
46-14!
57.2-8
33-38!
Now the white king can't go anywhere. After
58.8-26? black has
16-21
59.26x42
47x2 .
≡
58.35-30
47-36
Leonids Bickovskis - Karlis Kalejs 0-2 (2023)
Instead of
5-10? Kalejs could have decided the game elegantly using
≡
8-13!
40.39-34
13-19!
41.43-39
27-31! and white is the victim of a terrible case of `zugzwang`.
Maigonis Juhnjevichs - Arvo Krebe 1-1 (2023)
Krebe started correctly with
24-30!
32.35x24
20x40
33.45x34 But instead of
12-17? he should have played
≡
15-20! Then
34.49-44? is not possible due to the combination
23-29!
35.33x15
14-20
36.25x23
18x49 B+. And since
≡
35.33-29? is also impossible due to
19-24
36.28x17
24x11 , white will lose the game.
Martin de Jong - Bohdan Panchenkov 0-2 (2023)
When white played
41.36-31? Panchenkov decided the game using elementary means:
20-25!
42.29x20
15x24 Now both
43.45-40? and
≡
43.43-39?
are prevented due to
18-23 . The game continued with
≡
43.38-32
8-12
44.31-26
Or
≡
44.31-27?
3-8
45.43-38
10-15 B+
≡
3-8
45.32-27
17-22
46.28x17
12x32 and white resigned.
Iurii Anikeev - Jitse Slump 1-1 (2023)
After the inaccurate
5-10? Anikeev got a great opportunity to close the gap with the leaders.
44.37-32!
10-14
Most likely Slump had missed the combination
≡
17-21?
46.36-31!
26x19
47.29-24
20x29
48.34x5 in his calculations.
≡
45.32-27!
Now white has a decisive advantage.
3-8
46.30-24
8-13
47.42-38
17-22
48.38-33?
But this allows black to escape miraculously. The right move was
≡
48.40-35!
22x31
49.36x27
20-25 (since
≡
12-17?
50.23x21
26x17 loses due to
51.34-30!
≡
51.34-30
13-18
52.30-25
17-22
53.27-21
22-28
54.38-33!
28x39
55.29-23 W+)
≡
50.27-22
18x27
51.23-19
14x23
52.29x7 W+
≡
22x31
49.36x27
12-17!
50.23x21
26x17
51.40-35
Here
≡
51.33-28? leads to a draw after
14-19
52.34-30
17-22
53.27x9
20-25
54.24x13
25x32 .
≡
13-18
52.33-28
20-25
53.27-21
17x26
54.28-23
25-30
Victors Mateiko - Gunars Zalitis 0-2 (2023)
10.37-32?
This move is hardly ever played, and rightfully so.
21-27!
11.32x21
22-28
12.33x22
18x16
13.29x18
20x29?
But here black should have played
≡
12x23!
14.39-33
20x29
15.33x24
14-20!
16.43-39 (since
≡
16.34-29?
23x34
17.40x29 simply loses a piece after
10-14
18.44-40
14-19
19.40-35
19x30
20.35x24
9-14
21.45-40
14-19
22.40-35
19x30
23.35x24
4-9
etc.)
≡
20x29
17.39-33
10-14
18.33x24
14-20
19.34-29 (here
≡
19.44-39
20x29
20.39-33
9-14
21.33x24
14-20
makes no difference)
≡
23x34
20.40x29
9-14
21.44-40
14-19
22.40-35
19x30
23.35x24
3-9
24.49-44
9-14
25.44-40
14-19
26.40-35
19x30
27.35x24
4-9
28.45-40
9-14 and this position looks practically lost for white. It turns out that Frerik Andriessen already played like this in the world championship cadets 2007:
Mariusz Slezak - Frerik Andriessen 0-2 (28-6-2007)
≡
1.33-29
17-22
2.39-33
11-17
3.44-39
6-11
4.50-44
1-6
5.31-26
16-21
6.32-28
19-23
7.28x19
14x23
8.35-30
10-14
9.30-24
5-10
10.37-32
21-27
11.32x21
22-28
12.33x22
18x16
13.29x18
12x23
14.39-33
20x29
15.33x24
14-20
16.43-39
20x29
17.39-33
10-14
18.33x24
14-20
19.44-39
20x29
20.39-33
9-14
21.33x24
14-20
22.34-29
23x34
23.40x29
3-9
24.49-44
9-14
25.45-40
4-10(?) (better
≡
14-19 )
≡
26.44-39
20-25
27.38-33
14-19
28.40-35
19x30
29.35x24
13-18
30.24-19
25-30
31.48-43
7-12
32.42-38
30-35
33.39-34
8-13
34.19x8
12x3
35.43-39
18-23
36.29x18
17-21
37.26x17
11x13
38.41-37
10-14
39.37-32
13-19
40.36-31
19-24
41.32-28
14-20
42.31-27
24-29
43.34x23
35-40
44.28-22
40-45
45.23-19
6-11
46.33-28
11-17
47.22x11
16x7
48.46-41
7-12
49.27-22
12-18
50.22x13
45-50
51.38-33
50-45
52.47-42
45-12
53.28-22
12-8
Nicholas Ramsundar - Oleksandr Honhalskyi 1-1 (2023)
3-8? Honhalskyi missed the unexpected combination
≡
19-24!!
28.28x8 (the other two captures lose more easily)
14-19
29.25x23
18x49 . Even though white has a material advantage, the situation is hopeless now. For example
30.39-34
49-35! and the threat
24-30 is decisive.
Martin de Jong - Artemijs Bogdanovs 1-1 (2023)
43.48-43?
21-26
On Toernooibase it was noted by Jan Koerselman that black could have won the game using the combination
≡
17-22!
44.28x26
23-28
45.32x12
13-18
46.12x23
19x48
47.30x10
48x47 .
≡
44.43-39
17-21
45.50-45?
And Hendrik Veenstra showed that white could have forced a win using exact the same combination:
≡
45.39-34
3-8
46.34-29!
23x25
47.28-23
19x39
48.38-33
39x28
49.32x3
21x41
50.3x4 .
Rostyslav Lieshchynskyi - Micha van Tol 2-0 (2023)
After
6-11? Lieschchynskyi missed a nice forcing:
42.27-22!
11-16
43.49-43!
7-11
44.33-29
24x44
45.43-39
44x33
46.38x9
14x3
47.25x23 W+
Ricards Ositis - Gunars Zalitis 2-0 (2023)
Ositis showed that the tempting move
25-30? was poisoned due to
33.33-28!
22x44
34.40x49
30x28
35.38-32 and black resigned.
Martinas Masanauskas - Nikita Bakulins 1-1 (2023)
60.10-5? White could have won the game using
≡
60.10-28! and now either
31-36
61.32-27
12-18
62.28-6 W+ or
≡
12-18
61.28-6
31-36
62.32-27 etc.
Hein Meijer - Iurii Anikeev 0-2 (2023)
In this interesting position Meijer made a big mistake with
27.28-22? , which gave Anikeev the opportunity to immediately decide the game with the combination
11-17!
28.22x11
16x7
29.27x16
18-23 and white resigned. This is a pity, since the position has many interesting possibilities. After the logical
≡
27.42-38(?) black can play
12-17! This looks problematic for white, but with
28.36-31!
17-22
29.28x17
11x22
30.48-43! white can keep the game going. Another plan for white is
≡
27.44-40
9-14
28.37-31!
26x37
29.42x31 , and now for example
4-10
30.28-23
12-17
31.23x12
17x8
32.47-42
21-26
33.32-28
26x37
34.42x31 . Even
≡
27.47-41! is a serious move, since the situation after
26-31
28.37x19
18-23
29.29x18
20x47
30.18-12! is far from clear.
© Wieger Wesselink https://10x10.org