Chess Board
[ECO code B57] Move Move Here
The Leonhardt Variation (alt. route)

White deployed his KB to QB4(c4) targeting KB7(f7) to tempt Black's KP forward, and enabled 0-0.
Black's KPawn to K3(e6) forms a small centre, shields his weak KBP and frees his KB. The "main" entry until 1960s ECO coding recatalogued. B-Alt.
    White  Black	White  Black
 1. P-K4   P-QB4     5.	Kt-QB3 Kt-B3
 2. Kt-KB3 P-Q3	     6.	B-QB4  P-K3
 3. P-Q4   PxP
 4. KtxP   Kt-KB3  Main Schev. route

WHITE to Move or Undo or Jump or Clear
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