Modern Benoni - Knight on e5 and ...g5
In the classical line with 10.Nd2, Black brings the b8 knight to e5. After 12.Ra3 the ...g5 push controls f4 and stops White from driving the knight away, at the cost of weakening f5 and h5.
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Nbd7 11.a4 Ne5 12.Ra3 g5
Move by move
- 1.d4 – White occupies the centre with the queen's pawn and frees the c1 bishop. Against 1.d4 this course offers two systems based on ...c5: the Benko and the Benoni.
- 1...Nf6 – A flexible move: it controls e4, stops 2.e4 and does not yet reveal the structure. It is better to wait for 2.c4 before ...c5, so that White cannot answer with a comfortable e2-e4.
- 2.c4 – White gains space and controls d5. However, the c4 pawn will support a future pawn on d5: it is exactly the target the Benko will hit with ...b5.
- 2...c5 – Black hits d4 at once. After 3.Nf3 cxd4 the structures become symmetrical; the main reply is 3.d5, which gains space but creates the c4-d5 chain that Black will undermine.
- 3.d5 – White advances, gaining space and taking c6 away from the b8 knight. Now the d5 pawn depends on c4: Black can choose between ...b5 (Benko) and ...e6 (Benoni).
- 3...e6 – The Modern Benoni: Black challenges d5 to exchange the e-pawn and create an asymmetrical structure, with a queenside majority and a half-open e-file.
- 4.Nc3 – White supports d5 with the knight, so he can recapture with the c-pawn after ...exd5 and keep a pawn on d5.
- 4...exd5 – Black exchanges in the centre: he opens the e-file and fixes the typical Benoni structure.
- 5.cxd5 – White recaptures with the c-pawn: he gets a central majority and space, while Black has the queenside majority.
- 5...d6 – The d6 pawn blocks d5, controls e5 against the e4-e5 push and opens the way for the c8 bishop. It is the key pawn of Black's defence.
- 6.e4 – White completes the e4-d5 centre. His long-term plan is the e4-e5 break, which would open the position in his favour.
- 6...g6 – Black prepares the fianchetto: the g7 bishop will control e5 and the long diagonal, supporting future queenside expansion.
- 7.Nf3 – Classical development supporting e5. White chooses the most natural line, with neither f4 nor a fianchetto.
- 7...Bg7 – The bishop completes the fianchetto: it protects the king, controls e5 and looks towards c3 and b2.
- 8.Be2 – The Classical Variation: the e2 bishop is modest but solid, protects the king and leaves the Nd2-c4 manoeuvre against d6 available.
- 8...O-O – Black castles and prepares ...Re8 to pressure e4 along the e-file.
- 9.O-O – White castles. Now he must decide how to defend e4 from the pressure of ...Re8: with Nd2, Qc2 or f3.
- 9...Re8 – The rook attacks e4 on the half-open file: it forces White to defend the pawn and restrains the e4-e5 break.
- 10.Nd2 – The knight defends e4 and prepares to go to c4, from where it will attack d6. It also frees the f-pawn for f3 or f4.
- 10...Nbd7 – This time the knight goes to d7 to reach e5: White has not played f3 yet, so the e5 square is available and from there the knight will contest c4.
- 11.a4 – White stops ...b5 before continuing, as almost always in the Benoni: without this push Black struggles to mobilise his majority.
- 11...Ne5 – The knight occupies the strong e5 square: it controls c4, d3 and f3, prevents Nc4 without exchanges and supports ideas like ...g5 or ...Nfg4.
- 12.Ra3 – White lifts the rook to the third rank: from a3 it defends c3 and the third rank and can swing to the centre or kingside, while preparing f4 to drive away the e5 knight.
- 12...g5 – An ambitious move: the pawn controls f4 and prevents f2-f4, so the e5 knight stays stable. However, it weakens f5 and h5, squares White will try to use.
How to exploit the position
Black has a dominant knight on e5 that White can no longer drive away with f4; in return Black's kingside is somewhat weakened.
- The f6 knight can go to g6 (via h7 or after ...Nfd7), increasing control of f4 and preparing ...Nf4.
- On the queenside ...a6, ...Rb8 and ...b5 remain the long-term plan against the a4 pawn.
- White will try Nf1-g3-f5 or h4 to open the kingside: control f5 with the c8 bishop and don't open the h-file without reason.
Master tips
...g5 is a double-edged weapon
The ...g5 push cements the e5 knight but leaves holes on f5 and h5. Play ...g5 only when the e5 knight is your key piece.