Game review from Spanish Tournament


Last weekend took place the Sixth Spanish Tournament on KGS. This game is extracted from the first round and is confronts a Gotomah 12k with Buitenland 13k without handicap.

Personally, I think it is an interesting game for everyone, it has some techniques we already have practised on this blog, a kosumi-tsuke could have been played and more groups coud have been killed. The whole game is available at the "continue reading".


On the following situation, after black has played the crossed stone, where would you play? Look from something else than M15 or N15, and forget about trying to kill the lower black group, it is possible, but it is not what I want you to see.

I hope you already found what to do with the black floating group, if you are not sure about it, check the whole game at the "continue reading"


This entry was posted by Alejo on Sunday, April 1. 2007 at 11:23. and is filed under In the Game. You can leave a response, or trackback from your own blog.

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    Thanks for the very nice review of this game Alejo!
    There is a lot of information in it and I will need to read it several times to asorb everything...
    I'm sure I'll become a better player now :-)
    #1 Buitenland (Homepage) on 2007-04-05 18:41 (Reply)
    I'm glad you like it!!

    Let's see if we could meet each other sometime in La Pedra... I've got a couple of friends who are around 13-14k... but I think they would be somewhat weak for you...

    Ah, by the way, remember that if you want more games to be reviewed, post them at the forum!!
    #1.1 Alejo on 2007-04-06 04:38 (Reply)
    Black 7 at D2 does not protect against a 3-3 invasion. White 10 at C4 is wrong. After D6 - C3 - D3 you have D2, then black has the choice between E2 to make influence facing the right, or C4 for territory along the left side :
    1) E2 - C2 - E3 - B5 and White live in the corner.
    or 2) C4 - B2 - B3 - C2 and Black make territory on the left.
    In both cases Black has lost the corner. Black must add a stone at D3 or E3 in order to avoid a successful 3-3 invasion.
    #2 Elzeothis on 2007-04-06 02:36 (Reply)
    Black 7 doesn't play at D2... and I don't seem to have mention it neither...
    White 10 at C4... doesn't appear here neither... and doesn't seem to be suitable here.

    Are you really talking about this game? Are you using the Zgo applet or something else?
    #2.1 Alejo on 2007-04-06 04:22 (Reply)
    Ok, I've made a mistake, it's Black 7 at D6, with the comment "This would be a nice response, it blocks the 3-3 invasion. And the connection between B and C is still stable."
    After D6, White C3 - D3 - D2, then Black can choose between E2 and C4.
    #2.1.1 Elzeothis on 2007-04-06 06:31 (Reply)
    Yep... for some reason I've been watching reviews where they regard this D6 as preventing the corner invasion. Just now I visited Sensei's Library and it doesn't seem to be a successful way to prevent invasion, so currently I'm quite astonished...
    #2.1.1.1 Alejo on 2007-04-06 08:32 (Reply)
    After White 10 at F17, I think that the tsuke ar F16 is dubious. G16 - F15 - E17 - D17 and if White protect his weakness at H17, then Black must protect the cut with D14 (for example). In this game, if Black makes a base for his lone stone with N17, then White E16 - E15 - D15 and Black is in trouble because the White group is safe. Or E16 - D15 - E15 and the two black stones are separated from the corner.
    So, let's protect the cut with Black D14. Then White can attack the black stone with a pincer.
    #3 Elzeothis on 2007-04-06 02:52 (Reply)
    There is something wrong with the first sequence you mention, because E17 has already been played. So I guess I can't really read the continuations you wrote.

    Personally, I fit that the kosumi-tsuke fits perfectly here... you talked about black attacking at F15, why don't just get easy territory at d14? TAking into account how territorialy black was playing, I guess this suits his style better.

    You also talked about separating the black stones from the corner, which actually isn't accomplished by the sequence E16-D15-E15, so I think it is after the sequence I can't read.
    #3.1 Alejo on 2007-04-06 04:35 (Reply)
    Here I talk about Black 11 at F16 with the comment "Creating a wall to increase the potential of your group. And you have the k17 there to avoid white escaping to his side... nice move..."
    There's no E17 played here.

    To separate : E16 - D15 - E15, then Black can't avoid being separated : if E14, then F14 - G15 - E13 - D14 and black stones are separated from the upper right corner.
    #4 Elzeothis on 2007-04-06 06:39 (Reply)
    Sorry, but I don't agree with black D15... it is very deffensive and it's not a joseki neither. I think that answering to an atari made by black when playing at E15 would be too important for white to ignore.

    The secuence if you want to start with white playing at E16 (in order to separate) is answered by E15-E17-D15-g16-f15...

    You can check the whole joseki secuence at the Kogo's Joseki Dictionary (http://waterfire.us/joseki.htm click on the grey rectangle and wait for it to load).
    #4.1 Alejo on 2007-04-06 08:43 (Reply)
    There's no atari, the complete sequence is F16-G16-F15-E17-D17-H17-N17 (instead of D14), and then E16 for the cut.

    Then you're right, D15 is defensive, but it was in order to give two possible answers by Black after White E16 if you've not played Black D14 to protect the cut. Maybe E16 - E15 - D15 is more obvious in this case.

    Thanks for the URL (--> bookmark)!
    This dictionary say that you must protect the cut (Black 9 in the dictionary), which correspond to Black D14 for us. And if White try to cut at E16 instead of H17, then the dictionary propose the move Black D15, so this move is not as bad as you can think.
    #4.1.1 Elzeothis on 2007-04-06 09:05 (Reply)
    Sorry, I had misunderstood what you meant with D15, I thought of that move right after F16. So that's were the problem came from.
    I totally agree with you that black needs some fixing at D15 to protect the cut and it allows white to pincer the lonely stone.

    In the end, where would you move?
    #4.1.1.1 Alejo on 2007-04-06 10:24 (Reply)
    I think that you're right when you say that the kosumi-tsuke is good in this situation (with the K17 stone in place). But after E17-F16-D14 the 3-3 point invasion is always possible (you must add a stone around E18 to secure the corner) and White will take the corner or leave bad aji depending of Black's response.

    After this, instead of playing F14, White can play H17 or H16.
    Then Black must do something to strengthen his K17 stone, and it'll certainly be a good idea to make a base for this stone as soon as possible (beacause the upper-right corner is White).

    According to me (but I may be wrong) simply playing D14 or C14 after the approach at F17 is to passive in this situation.

    Hope it will help you.
    #4.1.1.1.1 Elzeothis on 2007-04-06 11:41 (Reply)
    I've just looked at some pro games and with the kosumi-tsuke in this situation (E17-F16-D14) White can also make a pincer at N17 or M17 to take Black's base away, then Black stone must jump to the center or being prepared to die.
    #4.1.1.1.1.1 Elzeothis on 2007-04-06 11:54 (Reply)
    Yes, I think that D14 and C14 are too passive here, but black player is playing passivelly at the beginning, that's why I didn't count on pincering. As you can see on the first white approach, I already stated something like : "black plays territorialy".

    Pincering at N17... seems a reasonable option but when would you do that? After black D14? Then the white group has to run for life to the center too...or be sacrificed
    #4.1.1.1.1.2 Alejo on 2007-04-06 14:46 (Reply)
    Yes, after D14 White can pincer and then he should also run to the center. But since Black has also to do this, he can't attack White very strongly, and White stones are less in trouble than if Black had only strong groups around.
    #4.1.1.1.1.2.1 Elzeothis on 2007-04-07 03:21 (Reply)
    I'll see if I can add kogo's joseki dictionary to this site, to be directly implemented on one section...
    #4.1.1.2 Alejo on 2007-04-06 10:26 (Reply)
    Yes, it would be great to have strong groups on both sides, but after D14 Black has a quite strong group on the corner and one weak, whereas White has only one weak group around to fight.

    Possibly black could try starting a fight with his weak group to whites group in order to make himself stronger...
    #5 Alejo on 2007-04-07 16:50 (Reply)

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