2009年3月13日 · Algebraic notation is the most common and the official system to record a chess game. In this system you give each square on the board a name. The name consists of two factors: the code of the file (a-h) and the code of the rank (1-8); the board is like a coordinate system in which you put points (values for x and values for y).

2017年7月6日 · Yes, it means that the pawn on c takes on d4. When a piece takes on a square, for example, a knight takes on d4, we write Nxd4. And when there are two knights on different vertical files that can take this pawn, we write, for example, Ncxd4, to avoid ambiguity. So, Ncxd4 means "knight on the c-file takes on d4".

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 create attacking chances.

2023年10月31日 · Qxd4?! really isn't a promising option, since the queen will be pushed around, while black makes developing moves like Nc6. Also, unlike the Center game, the trade of the c-pawn for the d-pawn also gives black added central control. However, 3.Nf3 is probably a promising way to avoid the Smith Morra.

2023年9月20日 · Black captures White's d-pawn with cxd4 to reduce White's control of the centre, expecting the pawn to be recaptured. White usually plays 4. Nxd4 so that the knight may subsequently move to b3 to assist in the defence of their king following queenside castling. A knight on d4 also eyes the f5 square and once the king is safe on the queenside ...

Learn the Sicilian Defense: Open with free tools and analysis from Chess.com. Improve your opening repertoire and crush your opponents!

Moves:1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 This is the main line. Theory table [edit | edit source] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4. 4; Main Line: Nxd4-+= When contributing to this Wikibook, please follow the Conventions for organization. Wikipedia has related information at Sicilian Defence. References

In the engineering make-up of the Nintendo 64 (original codename: Project Reality) is a modified MIPS family revision 4000 co-processor called the "Reality Coprocessor" (RCP).

2015年9月3日 · c线兵吃d4格。 请采纳，谢谢！ 正常不应该是比如c5xd4这种写法吗？ 就像上面写的那样。 为什么c后面没有数字呢？ 应该有一个数字，不知道是漏掉了还是怎样。 国际象棋 …

d4 cxd4 4. Qxd4. On move four White ignores the standard opening principle to not develop the queen too early in the game. Although the Chekhover Variation is somewhat rare at grandmaster level, it is not uncommon among amateurs. [2] The Encyclopaedia of Chess Openings assigns code B53 to this opening. [3]