
Danish Gambit - Wikipedia
The Swede Hans Lindehn played 1.e4 e5 2.d4 exd4 3.c3 on a regular basis from 1857 at the latest. He defeated the later World Champion Wilhelm Steinitz with his gambit in London, …
Sicilian Defence, Alapin Variation - Wikipedia
The main line in current practice is 2...Nf6 3.e5 Nd5 and can also arise if Black declines the Smith–Morra Gambit (1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5). White has a number of options …
Pawn Formation: e4 d4 c3 - Chess.com
2012年9月5日 · These lowly pawns invade the center as an impenetrable wall. The formation prevents the enemy bishop from taking advantage of the whole a1-h8 diagonal by …
Danish Gambit - Chess Openings - Chess.com
The Danish Gambit starts with the moves 1.e4 e5 2.d4 exd4 3.c3. White attacks Black's only central pawn and offers a pawn sacrifice for quick development. The starting position of the …
Smith–Morra Gambit - Wikipedia
In chess, the Smith–Morra Gambit (or simply Morra Gambit) is an opening gambit against the Sicilian Defence distinguished by the moves: White sacrifices a pawn to develop quickly and …
音高是怎么表示的? - 知乎
钢琴中央C是C4,中央区的A键为440Hz(即标准音高。 —–那为何标准音高又是用A来制定的呢? 目测是制定者想纠正前面的错误)。 在唱谱中通常书写”Do Re Mi Fa So La Si”,升一个八度 …
国际象棋的五种开局分类 - 知乎 - 知乎专栏
白方的基本战略思想很明确:以白格象直指防守薄弱的f7兵,并通过c3、d4占领中心,经常为了获得攻势,不惜弃兵、弃子来制造杀局。 但经过几百年来的实战证明,此开局容易迅速简化, …
Chess Opening Theory/1. e4/1...e5/2. d4/2...exd4/3. c3
By giving a two-pawn material advantage to his opponent, Black spends two moves to capture both of the pawns, and has to deal with a massive attack. Black has few choices here: The …
The Danish Gambit - A Fast Guide - MyChessTutor
2024年1月17日 · 1.e4 e5 2. d4 exd4 3. c3 - the Danish Gambit! What is the Danish Gambit? At its heart, the Danish Gambit is about sacrifice for rapid development and attack. As White, you …
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. c3/3...Nf6/4. d4
2024年12月12日 · With 4. d4, White ignores the attack on the e-pawn and counterattacks Black's central pawn on e5. Black now has a choice - they can take the e-pawn, take the d-pawn, …