"[...] I have attached question marks to the moves which change a winning position into a drawn game, or a drawn position into a losing one, according to my judgement.
A move which changes a winning game into a losing one deserves two question marks (now and then I might for emotional reasons have put two question marks where one would have sufficed; the stupidity shown by these moves has been too incredible for me to be passed by silently).
I have distributed question marks in brackets to moves which are obviously inaccurate and significantly increase the difficulty of the player's task, but do not alter the evaluation of the position.
Sometimes, a series of weak moves occurs; it is problematic to pinpoint the exact moment of the change in evaluation, because it does not happen by precipitation, but in a slide. I hope, that these cases will be sufficiently illuminated by the explanatory text.
There are no exclamation marks, as they serve no useful purpose. The best move should be mentioned in the analysis in any case; an exclamation mark can only serve to indicate the personal excitement of the commentator. I do not want to impose my feelings on the reader, and I leave it up to him when to feel amazed or thrilled, and when not. [...]"
(Robert Hübner - Twenty-five Annotated Games)
"[...] I have attached question marks to the moves which change a winning position into a drawn game, or a drawn position into a losing one, according to my judgement.
A move which changes a winning game into a losing one deserves two question marks (now and then I might for emotional reasons have put two question marks where one would have sufficed; the stupidity shown by these moves has been too incredible for me to be passed by silently).
I have distributed question marks in brackets to moves which are obviously inaccurate and significantly increase the difficulty of the player's task, but do not alter the evaluation of the position.
Sometimes, a series of weak moves occurs; it is problematic to pinpoint the exact moment of the change in evaluation, because it does not happen by precipitation, but in a slide. I hope, that these cases will be sufficiently illuminated by the explanatory text.
There are no exclamation marks, as they serve no useful purpose. The best move should be mentioned in the analysis in any case; an exclamation mark can only serve to indicate the personal excitement of the commentator. I do not want to impose my feelings on the reader, and I leave it up to him when to feel amazed or thrilled, and when not. [...]"
(Robert Hübner - Twenty-five Annotated Games)