ChessWorld.net, founded in 2000, is an online chess site.In modern chess, the game often begins before the first pawn is pushed. If you know who your opponent is (in a tournament or correspondence game), you have a massive advantage. You can look up their history, find the openings they play badly, and set a trap specifically for them. This is the art of Targeted Preparation.
Your first goal is to find their games.
Once you have their games, put them into an "Opening Tree" view. Look for specific patterns:
Does your opponent play the same first move 100% of the time? (e.g., they always play the Sicilian Dragon). If yes, you don't need to study general theory; you only need to study one specific anti-Dragon line.
Look at the statistics. Is there a line where they score very poorly?
Example: They score 60% wins against 1.e4, but only 30% against 1.d4.
Strategy: Even if you are an e4 player, consider playing d4 (or a d4-transposition) to force them into their "unhappy zone."
This is the Grandmaster secret. You don't need to outplay them for 60 moves; you just need to catch them once.
Look at how they lose.
Warning: Don't memorize 25 moves of a line hoping they walk into it. If they deviate on move 3, and you are stuck remembering a line that is no longer on the board, you will panic.
Rule of Thumb: Prepare specific traps, but understand the general plans.