![]() StartingPoints Referenced by
|
reversible play - loss and gain
Keywords: EndGame
Discussion moved here from last section of One-Two-Three.
Charles In this example the point is that Black has gained nothing yet, if we're just talking endgame. Simply playing In fact that claim is in a state of tension with the sente gains nothing idea (which could be called a OneTwo concept).
Charles Then next we may have Black a - White b, a sente exchange. Out of the three statements
at least one must be untrue, no? In the diagram it could be that this is a double sente (for all we know), but assuming it is really Black's (one-sided) sente to play here (we can add context to make that apparent) I'd say, of these statements, 1 and 3 are true, and 2 is false (that is not a sente-gains-nothing case). Bill, please give us your interpretation.
Bill: Black a is not sente. A gote played with sente does gain something. And for free! The proverb does not apply to that situation. :-)
So 2) and 3) are false. Black a - White b gains more than
As for a case where Black a is sente, Here is a case that is plainly Black's sente.
We make the usual assumptions that the corner is Black territory and to the right is White territory.
The sequence,
Is the position worse for Black than the original? Yes, it is, but it is not a loss in terms of the saying, Sente gains nothing, which refers to the local count. It is worse for Black because White's reverse sente is larger than before.
Before, if See Double Sente is Relative, example 1, for another related position. This is a copy of the living page "reversible play - loss and gain" at Sensei's Library. ![]() |