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Capturing Race Exercise 20/ Attempts
Sub-page of CapturingRaceExercise20
Diagrams repeated for convenience. Part I
Shaydwyrm: After this exchange, black is ahead 10 liberties to 5 (actually, black need not play 2 at all if there is no threat to connect on the right).
Shaydwyrm:
Shaydwyrm: Play might continue like this...
Shaydwyrm: ...and now it is evident that white is one move ahead in the capturing race. Part II follows the same logic, except that because white has one less liberty on the right, black is a move ahead instead of white. All of this is complicated a little if white can escape to the right, but if we make the fairly standard (though artificial) assumption that the rest of the board is empty, white can't gain any liberties that way.
Part II
This is a copy of the living page "Capturing Race Exercise 20/ Attempts" at Sensei's Library. ![]() |