White first
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Positive solution
White 1 and 3 are in the correct order. Black 6 block on the left side is the best choice, white 7 tip with hand tendon clever robbery, black even if the robbery can also hold the corner.
Change chart
If black 6 blocks the right side, white 7 also takes a sharp tendon, and eventually although it is also a robbery, the robbery is obviously burdened by black weight.
Failure plot
The order of the white first break of the two roads is wrong, and the white live chess is hopeless.