I. The game of chess is a draw. The only way a player can possibly win is if the other player commits an error, usually many errors. Taking advantage of errors is not always easy, and so, even in the presence of errors, wins are not always obtained.
II. Chess is a game of incremental improvement or degradation of one's position. Attempts to radically improve one's current position in one move are bound to fail. Fears that the opponent's previous move has radically degraded one's position are unfounded.
III. Chess is a game of virtually an infinite number of positions. Thus, calculation in non-forcing positions is filled with error. In any given game, most of the positions can be played very well without deep calculation.
IV. No matter the rating difference between player 'A' and 'B', the level of understanding of some positions and the skill in playing them may be 1) exactly the same, 2) greater for player 'A', 3) greater for player 'B'. Understanding and skill in some position does not guarantee understanding and skill in all, or even other, positions.
V. Most players have an average ability to visualize and calculate future chess positions and moves. A more skillful player is the result of having learned how to play more positions than the weaker player, not in having greater calculation ability.
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