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OngoingGame1

 

Ongoing Game 1 Moves 120 To 158
   

[Diagram]
Diag.: 'Group Rengo' : Move 120

Holigor: 120. White would not like to be sealed at the top. Small reductions from all sides seems to be the only possible tactics. White should play little bit thin too.



[Diagram]
Diag.: 'Group Rengo' : Moves 121-130

Andre Engels: 123 is a big move. This is almost certainly better than answering in the center.



[Diagram]
Diag.: 'Group Rengo' : Moves 131-140

MortenPahle: 136. I'm sorry, but I think white has to do something stronger than just follow blacks yose moves. However, I am not sure whether this is the way to go about it.... (A typical Morten move :-) (See A valid reason for move 136)

DaveSigaty: I think that 136 is not the best. But I think that it was played from an underestimation of W's position. W has gained a lot in the last few stones as both the upper side and center have become thick. What is the potential here? CanWhiteWinAt136?

HolIgor: I made a move suggested by Dave (138).



[Diagram]
Diag.: 'Group Rengo' : Moves 141-150 (10: at the point of the marked stone)

DaveSigaty: (142) W plays here too soon, I think.


[Diagram]
Diag.:

W's calm play at 2 in response to 1 leaves B on the spot. If B tries to prevent the top from getting too large with 3 and 5, W plays the combination against the corner and ends up cutting 1 off with a big gain on the left side. Compare this to the shape in the game where B's ponnuki is much better positioned. W will make more territory at the top but the left side is gone.

HolIgor: (147) Black should not allow white to connect undeneath in my opinion. DaveSigaty: I think this is an interesting way of looking at it. W needs to worry about the cut at 'a'.



[Diagram]
Diag.: 'Group Rengo' : Moves 151-158

Tim Brent (158) : Though this is a gote move,it is necessary in that if White does not play here,Black will,and White cannot win the Ko as Black would take 2 stones on the first capture. It also protects the eye around E 16.

DieterVerhofstadt (156) : Mmm. Black seems ahead after 153. Maybe 152 too slow ?

Matt Noonan (155): I assume sente is too important right now for black to respond to white 154? I think there are larger moves to be made..

Andre Engels: I agree. Black 153 was quite large and sente, but any further moves will be gote, and there are larger moves in other parts of the board.

DieterVerhofstadt (152) I'll make a positional judgment first.

Black: UL 5; U&R 58 with lots of endgame; LL 6; Total:69

White: UL 24; LL + LR 44; UR 5; komi 5.5; Total 78.5

White ahead in territory, but Black has better endgame objectives. Overall I'd say White slightly ahead.

Move 152: This should resolve the ko, while providing an escape route for the marked stones at either A or B. The Black stones are cut, so White keeps the advantage ?

Move 151. HolIgor: Interest to the game has strongly fallen. I have to make another move for black (though I played mostly white in this game). If black loses, blame me, please. First we lost it for white and then for black :-(.



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