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Nakade Liberties
This page discusses the number of liberties the different nakades have, which is slightly different from the usual meaning in the liberties page. Here, it refers to the number of moves required to remove the group containing the nakade off the board. Two Space Nakade
Not much discussion here, but I'll use it as the base. Each case builds on from the previous case. Anyway, a two space nakade has 2 liberties. Three Space Nakade
Three space nakade has 3 liberties. We count 1 move at the marked stone. Then white plays at a, and black replies at b, ... SIDE NOTE: If black fails to reply in this case, the strategic result is the same as if she had. But under Chinese scoring, white has one more point at the end of the game. Under Japanese scoring the points are the same too. --DerekGrant
We are back to two space nakade. Note that after the marked stone, black has 2 liberties (the same as the two space nakade as white a is answered by b, so that liberty doesn't count). Thus a three space nakade has 1 + 2 = 3 liberties. Four Space Nakade
Using the same theory, we do the same counting for the four space nakade. First we count 2 liberties at the marked stones, now black has 3 liberties left, because after white ataris at a, and black answers at b, we get...
... a three space nakade. So a four space nakade has 2 + 3 = 5 liberties. That's 3 liberties for the "three space nakade" and 2 more liberties for the additional step above. Five Space Nakade
The same theory goes, counting 3 marked stones, and after the exchange of white a and black b, we have...
... a four space nakade with 5 liberties. Summing up, a five space nakade has 3 + 5 = 8 liberties. By the way, this shape is also known as the bulky five. That's 5 liberties for the "four space nakade" and 3 more liberties for the additional step above.... You get the idea. Six Space Nakade
The last case, a six space nakade...
... will get reduced into a five space nakade. It has is 4 + 8 = 12 liberties. Contributors: This is a copy of the living page "Nakade Liberties" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |