We called this region of proliferation the progress zone because it is there, we believe, that the cells acquire their positional values.

No further distal positional values can be generated.

Games with verbal in-turn declarations are uncommon, because the positional value of declaring last is so great that it makes the game unfair.

Experiences are part of a biographical time-structure and have different "positional" values only within that structure.

The Hox complex acts like a stamp, giving cells in each segment a long term positional value.

The lack of a positional value (or zero) was indicated by a space between sexagesimal numerals.

Portisch, with his eye on the important positional values, also rose to the occasion with 19 Rb5!

The time cells leave the AER determines their positional value.

A player may undertake an exchange to capture an opponent's piece having better positional value than the piece that will be lost.

Another argument is that bughouse neglects positional values due to its highly tactical gameplay.