@13450
++ It should be exact: tempi come in natural numbers.
1 pawn > 2 tempi, 1 pawn < 4 tempi, 1 pawn = 3 tempi.
Even if it were not exact, it is clear that 1 tempo < 1 pawn.
+1 pawn is enough to win: queen the extra pawn.
+1 tempo is not enough to win: you cannot queen a tempo.
"+1 tempo is not enough to win: you cannot queen a tempo"
This means nothing since we are not certain that there is no line where that +1 tempo leads to, for example, a forced win of a pawn.
"1 pawn > 2 tempi, 1 pawn < 4 tempi, 1 pawn = 3 tempi"
What position do you refer to when you say "1 pawn?" In the starting position? I'm asking because obviously material count has different value in different positions. For example being up a knight vs a king is worth nothing.
Even in that case the evaluation of say 1 pawn or 0.33 pawns in the starting position is not worth much, since we don't know how many pawns up is enough to win.
Point is, we can't really put a value on that +1 tempi because we don't know where it leads to with optimal play.
Anyone who thinks that there is a fixed exchange rate between time and material that can be part of a proof of the value of chess has lost the plot.
Problems with this are: