if (window.location.hostname == "chessmind.ai" && !window.location.pathname.startsWith('/embed/')) { document.write('<iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TS8C2C58" height="0" width="0" style="display:none;visibility:hidden"></iframe>'); }

ECO C74

ECO C00–C99 — Open Games and the French Defense: 1.e4 e6 and 1.e4 e5, from the Italian and Ruy Lopez to the King's Gambit.

1 named opening lines are classified under ECO code C74.

Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5