throw-in
A throw-in is a sacrifice stone played to create a false eye or reduce the liberties of an opponent's group. In the first diagram, White is asked to kill the intervening black stones. A play at B would be answered by Black at A leaving the black stones with three liberties which is one liberty ahead in the liberty race. Instead ,White must throw-in at A. In the next diagram, after black 4 connects, the resulting group will now have only two liberties, and thus White will have no difficulty in killing the black stones. |
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