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Spiegazione
Il segno + si mette alla fine di una mossa quando lascia il re avversario sotto attacco. Il giocatore minacciato deve rispondere con una mossa legale che elimini lo scacco.
Per esempio, Qe3+ significa che la donna va in e3 e dà scacco. Il + descrive un fatto oggettivo, non elogia la mossa.
La Standard Algebraic Notation (SAN), usata dal , include + nella mossa. Nella SAN, sul formulario FIDE il segno è facoltativo. Anche con due pezzi che danno scacco, la SAN mantiene un solo +; il significato di dipende dalla convenzione.
Se il re non ha risposte legali, la mossa è matto e si usa invece di +.
Confusioni comuni
Scacco e scacco matto
+ permette una difesa legale; # indica che non ne esiste alcuna.
Visualizza termineScacco e buona mossa
+ informa che il re è attaccato. Non dice se la mossa sia buona, cattiva o ovvia.
Fonti
- 1.FIDE Laws of Chess taking effect from 1 January 2023, FIDE
- 2.Appendix C. Algebraic Notation, FIDE Rules Commission
- 3.Standard: Portable Game Notation Specification and Implementation Guide, rec.games.chess contributors; coordinated by Steven J. Edwards