Solution 4A The threat of the cut of W1 here is extremely dangerous for Black, and cannot be permitted!
If this cut is allowed, after the sequence thru W7 Black’s entire position here would be in serious trouble! So ...
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Solution 4A The threat of the cut of W1 here is extremely dangerous for Black, and cannot be permitted! If this cut is allowed, after the sequence thru W7 Black’s entire position here would be in serious trouble! So ... |
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Solution 4B Black must play immediately to prevent that dangerous cut!. The solid connection of B“a” obviously works, but is inferior not only because it doesn’t extend Black’s position, but because it also lacks eyeshape. And making a “Tiger’s Mouth” at either “b” or “c” is also not best because it would only serve to induce a White peep on the complementary point, with (slight) advantage to White. So B1 here is the ideal answer, both extending and defending. After this, if W“a” cuts, B“b” will capture the cutting stone. |