Krajenbrink,J. - Flits 1-1 (23-07-2002)
In the fourth round of the match Krajenbrink is looking for revenge for his defeat in the previous game. Due to a clever openings choice he seduces the computer into a complicated half classical game.
≡ 1.31-27 19-23 2.33-28 17-21 3.28x19 14x23 4.38-33 21-26 5.34-30 10-14 6.30-25 14-19 7.25x14 9x20 8.35-30 11-17 9.30-25 20-24 10.40-34 5-10 11.44-40 4-9 12.43-38 10-14 13.49-43 14-20 14.25x14 9x20 15.40-35 6-11 16.34-30 3-9 17.45-40 9-14 18.39-34
With the very agressive 18.39-34 Krajenbrink keeps the pressure on the black position.
20-25 19.33-29 24x33 20.38x29 14-20 21.43-39 20-24 22.29x20
Flits wisely decides not to capture the piece in forward direction. That would certainly have helped the white player.
Probably Flits started to realize here that the black position is dangerous, because white threatens to undermine the black center with 33-29. Using a temporary sacrifice the pressure on the black position is relieved somewhat.
23-28 25.33x22 18-23 26.44-39 23-29 27.34x23 19x17 28.40-34 12-18 29.42-38 17-22
Most likely Krajenbrink has thought about playing 30.36-31 in this position. It's a very tough decision against a computer. In such a complicated position the computer can calculate a tremendous amount of variants. On the other hand, it is very hard for the computer to evaluate this type of position correctly. And that is why I think that Krajenbrink should have gone for it. Some examples of the possibilities for white are 13-19 31.38-33 7-12 32.30-24 19x30 33.34x25 8-13 34.33-29 13-19 35.39-33 followed by 29-24, and ≡ 7-12 31.38-33 11-17 32.33-29 13-19 33.30-24 19x30 34.34x25 (without fear for the combination 22-28 35.32x23 21x32 36.37x28 26x37 37.41x32 17-22 38.28x17 12x21 39.23x3 21-26 40.3x20 15x44 41.25-20 with a very promising endgame position, especially against a computer) ≡ 1-7 35.29-23 18x29 36.27x18 12x23 37.32-27 21x32 38.37x10 26x37 39.41x32 15x4 40.25-20 etc. with in both cases very good prospectives for white.
≡ 30.48-42 22x31 31.36x27 13-19 32.38-33 7-12 33.33-28 1-6 34.39-33 8-13 35.34-29 12-17 36.41-36 2-7
Clearly Krajenbrink has still the better position. His next move is better than 37.30-24 19x30 38.35x24 because of the reaction 17-22 39.28x17 11x31 40.36x27 7-11 and white has no serious chances anymore.
≡ 37.46-41 17-22 38.28x17 11x31 39.36x27 7-11 40.29-24 26-31 41.37x17 11x31 42.32-28 6-11 43.33-29 11-17
In this position the exchange 44.30-25 19x30 45.25x34(!) would have given better opportunities. However, due to the excellent defensive skills of computers (not in the least because of the 6-piece endgame database) it is not likely that Krajenbrink would have won in this case. At least after a few more moves ( 16-21 46.34-30 13-19 47.30-24 19x30 48.35x24) Truus already starts to calculate drawing lines. For a human player it would still be very hard to defend the black position. After the next move the game quickly ends in a draw.
≡ 44.42-37 31x42 45.47x38 18-22 46.38-33 13-18 47.24x13 18x9 48.30-25 16-21 49.35-30 21-26 50.30-24 22-27 51.24-20 15x24 52.29x20 26-31 53.28-23 31-36 54.41-37 27-32 55.37x28 36-41 56.23-19 14x32 57.33-28 32x23 58.20-14 9x20 59.25x14 41-46 60.14-9
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