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English opening, symmetrical defence

chess opening, variation of the English Opening

Pronunciation
/ˈɪŋɡlɪʃ ˈoʊpənɪŋ , səˈmɛtrɪkəl dɪˈfɛns/
/ˈɪŋɡlɪʃ ˈəʊpənɪŋ , sɪˈmɛtrɪkəl dɪˈfɛns/