XX.
Although no degree of instruction derived from "books" will make a good player, without much practice with all sorts of opponents, yet, on the other hand, when you hear a person, who has had great practice, boast of never having looked into a chess-book, you may be sure either that he is a bad player, or that he is not nearly so good a player as he might become by attentively studying the laborious works which have been published on almost every conceivable opening, by such players as Ercole del Rio, Ponziani, Philidor, Sarratt, and Lewis.
XXI.
Between fine players, small odds (viz. pawn, with one, or with two moves) are of great consequence. Between inferior players they are of none. The value of these odds consists chiefly in position; and in every long game between weak players, such an advantage is gained and lost several times, without either party being aware of it.
XXII.
Almost all good players (and some others) have a much higher opinion of their own strength than it really deserves. One person feels sure that he is a better player than some particular opponent, although he cannot but confess that, for some unaccountable reason, or other, he does not always win a majority of games from him. Another attributes his failure solely to want of attention to details which he considers hardly to involve any real genius for the game; and he is obliged to content himself with boasting of having certainly, at one time, had much the best of a game, which he afterwards lost, only by a mistake. A third thinks that he must be a good player, because he has discovered almost all the many difficult check-mates which have been published as problems. He may be able to do this, and yet be unable to play a whole game well, it being much more easy to find out, at your leisure, the way to do that which you are told beforehand is practicable, than to decide, in actual play, whether, or not, it is prudent to make the attempt.
XXIII.
A theoretical amateur, with much real genius for the game, is often beaten by a fourth-rate player at a chess club, who has become from constant practice thoroughly acquainted with all the technicalities of it, and quietly builds up a wall for the other to run his head against. The loser in this case may perhaps eventually become the better player of the two; but he is not so at present.
XXIV.
A person sometimes tells you that he played the other day, for the first time, with Mr. Such-a-one, (a very celebrated player,) who won the game, with great difficulty, after a very hard fight. Your friend probably deceives himself greatly in supposing this to be the case. A player who has a reputation to lose, always plays very cautiously against a person whose strength he does not yet know: he runs no risks, and does not attempt to do more than win the game, which is all that he undertook to do.