All you need to know about Carpenter's Square-17
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Diagram 17.1: White to play

Black corner is under more pressure. How can white make good use of ?


Diagram 17.2: Solution

Unlike Diagram 16.2, because of , black has to play , leaving the key point to white. After the situation is so-called 'Golden Chicken Standing on One Leg' and black is dead.


Diagram 17.3: Solution 2

Trying to emulate Diagram 16.7, black plays . However, because of , is possible now. There is simply not enough eyespace in the corner. Black is dead too.


Diagram 17.4: Variation

We've mentioned earlier that does not work. White can follow the sequence in Diagram 16.9 and play directly to kill. Or even simpler white can play here. is a good move, creating miai points 'a' and 'b'. Black can not survive.


Conclusion: this is one of the simplest shapes we've covered so far. Black has no chance.


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