(13) Samenwerking tussen de vleugels - het bezetten van 24 en 23,centrumbezetting
fa8_003


15.28-23













White had 7 more tempi than black. It is suitable for attacking.
White made Tandem.
17-21 16.32-28
White reinforced 23/24.
[ >16.31-27













White gets 27/23/24. Computer says this move is best.
12-17













Black wanted to get rid of 23 and to make white 23/24 weak.
17.23x12 17x8 18.45-40 14-19 19.40-35 19x30 20.35x24 13-18 21.38-33 21-26 22.43-39 26-31 23.27-22 18x38 24.33x42 1-7 25.36x27 (0.22;0.00/11) ]
16...21-27 17.31x22 18x27













Such attack of 23 and 24 is called "flank-central-attack".
White has more tempi( 7 tempi ). Movein to 23 and 24 needs a lot of tempi. I think having more tempi is good for "flank-central-attack" . 18.47-42 3-9 19.42-37 6-11 20.38-33 11-17 21.43-38













White became quickly stronger.
17-21 22.38-32













White will exchange with 38-32 3 times, keeping 23/24/38/29. After 3 times exchange, black lost 27 and white got it. This is a point of this game , I think.
This exchange did not change tempi.

At this moment, white 23 & 24 is stronger than black 27. So exchange with 13-19x18 is better, because black gets rid of white 24.
27x38 23.33x42 21-27













Black intended to keep 27.
24.45-40













42-38 is also good.
1-6 25.40-34 6-11 26.42-38 16-21 27.38-33 21-26 28.48-43












14-20
[ 28...12-18












29.23x12 13-19 30.24x13 9x7













Black got rid of white 23 and 24, but white could get 23 and 24 again.
]
[ 28...27-32












29.23-19












32x41 30.19x6 41-46 31.29-23 9-13 ]
[ >28...13-19













Not bad
29.24x13 9x18 30.43-38 11-17 31.34-30 15-20 32.30-25












26-31 33.37x26 18-22 34.36-31 27x36 35.26-21 17x26 36.28x8 20-24 37.29x9 4x2 38.23-19 36-41 39.19-13 (0.14;0.38/11) ]
29.43-38













Because of white 23/24, black has no formation in center and black's right wing. Black knew that white had intended to keep 23/24 and dare to use tempi with exchante 28-32x42, but black had no option.
9-14 30.38-32
[ 30.37-32













Possible
11-16 31.32x21 16x27 ]
30...27x38 31.33x42 13-18













After last exchange of 27, white has the game in the hands.

[ 31...12-18












32.23x12 14-19













This offer-and-attack is often seen. 33.34-30 20-25 34.37-32 25x23 35.42-37 19x30 36.28x8












]
[ >31...20-25












32.28-22 12-18 33.23x12 14-19 34.34-30 25x23 35.22-17 11x22 36.12-7 19x30 37.7-2 13-18 38.2x35 23-29 39.35-40 18-23 40.42-38 (0.52;1.49/12) ]
32.36-31













White can get 27 at last.
11-17 33.31-27 20-25 34.37-32 4-9
[ >34...17-21 35.27x16 15-20 36.24x15 26-31 37.23-19 14x23 38.28x19 25-30 39.34x25 31-36 (1.40;2.81/12) ]
35.42-37 9-13













White has 7 more tempi.

[ >35...26-31 36.27x36 18-22 37.36-31 22x33 38.29x38 9-13 39.32-28 25-30 40.24x35 13-18 41.34-29 18-22 42.38-33 15-20 43.37-32 (2.15;7.66/13) ]
36.37-31 26x37 37.32x41 14-20
[ >37...17-21 38.27x16 14-19 39.23x14 12-17 40.41-37 15-20 41.24x15 18-22 42.28-23 13-19 43.14-9 19x28 44.9-4 28-33 45.29x38 25-30 46.34x25 22-28 47.15-10 17-21 48.16x27 (7.55;9.99/13) ]
38.41-37













White won.
You can see that white 27/23/24 control center. Black can not have a formation in center.