# Tag Info

4

\$\$cm1 \$\$ +---------------------------------------+ \$\$ | . . . . . . . . . . . . . . . . . . . | \$\$ | . . . . . . . . O . . . . . . . . . . | \$\$ | . . . . . . . O O . X . . O . . a . . | \$\$ | . . . , . . . . . X . . . . . O . . . | \$\$ | . . . . . . . . O O O . . . . . . . . | \$\$ | . . . . . . . . X X O O . O . . 1 . . | \$\$ | . . . . . . . . . . X . . . . . . ...

7

First off, count the current score. If you're winning, do not invade. Just make sure you keep white small enough that you still win. Let use further presume that black would be losing. You counted, so you know by how many points. A move around c could be parried with a sacrifice of two white stones while sealing off the rest of the upper right corner ...

1

Many question in one post ... An invasion on a should work, because the corner is not yet 100% secure. White will probably build up strength to the outside leaving no potential on b. White will probably get the initiative afterwards. An invasion on c looks very big, probably bigger than the corner invasion because of the two white stones to be captured. ...

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