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解释
棋子图形代数记谱法简称 FAN，以每种棋子的图形代替其首字母。因此，♘f3 与 Nf3 表示同一手棋，♗xe6+ 与 Bxe6+ 也表示同一手棋。坐标、吃子和后缀遵循的规则。
兵着仍不带棋子符号，因此 e4 仍写作 e4。主要优点是读者无需知道某种语言用 N、C 还是其他字母表示马。因此，棋子图形常见于面向国际读者的书籍、杂志和界面。
Portable Game Notation (PGN) 规范是一种保存对局的文本格式，它把 FAN 描述为 SAN 的视觉替代形式，并指出除图标外两者完全相同。国际棋联 (FIDE) 也建议印刷期刊使用棋子图形。FAN 仍是着法文本：它不是图，也不能独自显示局面中的全部棋子。
用法与背景
具体外观取决于字体或界面，但每个符号都必须清楚标识棋子类型。
常见混淆
使用字母的 SAN
FAN 与 SAN 编码相同信息，区别只在视觉上：FAN 在 SAN 显示棋子字母的位置显示棋子图形。
查看术语局面图
FAN 序列逐手记录着法。局面图则表示特定时刻一个局面中的所有棋子。
来源
- 1.FIDE Laws of Chess taking effect from 1 January 2023, FIDE
- 2.Standard: Portable Game Notation Specification and Implementation Guide, rec.games.chess community; coordinated by Steven J. Edwards