Dawid Markelowicz Janowski
Dawid Markelowicz Janowski [ˈd̪avʲit̪ ˈmaʁkəlɔvit͡ʂ ˈjanɔfski] was a Russian-born French chess player. The Janowski variations of the Old Indian Defense and of the Queen's Gambit Declined are named after him.
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