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cutting stones

Stones or groups whose connection can be severed by an effective cut.

Cutting stones are stones or groups that can be separated from one another by an effective cut. A cutting point or other weakness lets the opponent divide them into disconnected groups, often creating simultaneous threats against both sides. This makes the concept important when assessing connection, tactical vulnerability, and the consequences of cutting or defending against a cut.

Cutting stones are the vulnerable or strategically relevant stones themselves. A cut is the move or tactic that separates them, while a cutting point is the location where that separation can occur. Whether stones are truly cutting stones depends on their surrounding liberties, supporting stones, and the result of careful tactical reading. A nominal cutting point may exist without producing a viable cut.