5...Bd6

Black develops his knight ...Nb8-d7-c5 with the hopes of trading off White's active light-squared bishop.

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White often creates an escape square to tuck away the bishop with c3 and Bc2.

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In order to preserve the light-squared bishop White may be forced to play the strange maneuver Bb3-c4-f1.

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If the light-squared bishop cannot be captured, Black completes the long-winded knight maneuver of ...Nb8-d7-c5-e6, which prevents White from the pawn break f4 and clears the c5-square for the dark-squared bishop.

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Black can also begin his knight maneuver with ...Na6.

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White plays for a central strategy by placing a rook on the open d-file with Rd1 and centralizing his bishop with Be3.

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It is also possible for White to begin play on the kingside with the maneuver Qf3-g4.

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White can exchange the knight for the dark-squared bishop with Nxd6, and immediately attack the weakened dark squares with f4, which also activates his rook on f1.

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Black gains space on the queenside with ...a7-a5, and if allowed ...a5-a4.

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Black will get his queen off the open d-file, ...Qe7, from where it would be opposite an enemy white rook on d1, and play ...Rfd8.

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