411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...c5/2. Nf3/2...d6/3. d4/3...cxd4/4. Nxd4/4...Nf6/5. Nc3/5...a6/6. h4
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Kobo-Steinberg Variation
A sharp move that initiates a kingside initiative.
first played in the game Nitzan Steinberg vs. Lali Agbabishvili 2017.