[ECO code D50]
The Been and Koomen (aka. Dutch) Variation
Black's QBPawn advances to a defended QB4(c5) in a counter against White's QP. Inferior, bringing sharp play. Named after two Dutch players. B-Alt.
White Black 1. P-Q4 P-Q4 2. P-QB4 P-K3 3. Kt-QB3 Kt-KB3 4. B-Kt5 P-B4
WHITE to or Undo or Jump or Clear
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