[ECO code B20] |
CENTRE GAME to ORTHODOX VARIATION White develops his King's Knight to defend his QP, transposing into the Orthodox line. W-Alt. White Black Transp.White Black 1. P-K4 P-QB4 (1.) 2. P-Q4 Kt-QB3 (2. Kt-KB3 Kt-QB3) 3. Kt-KB3 (3. P-Q4 ) Continue: or Undo or Jump or Clear |