abande tactics and strategy

01

White to move. How can White gain control over the lower left corner?

Click to reveal the solution. b2-a1 is the best move here. a1 cannot be captured since both black pieces at a2 and b1 are bound. In the next turn White can also capture c1-b1 to gain two counting double stacks!

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02

White to move. Hint: sleeping pieces don't count.

Click to reveal the solution. b2-a1 is the best move here. Black loses the stack at c2, scoring only 2 points at b1, White scores 3 points. Note that a2 is safe, as b1-a2 would break the connection.
Otherwise (a2-b1) Black and White would both score 4 points. Even worse, Black could possibly capture a1-b2.

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