2. Spassky Variation with 8.Rb1 O-O 9.Nf3 (The a2 Pawn Sacrifice)
Boris Spassky revitalized the Grünfeld with 8.Rb1, moving the rook off the long diagonal and eyeing b7. Black boldly responds with ...cxd4, ...Qa5+, and ...Qxa2, grabbing the pawn sacrifice to dismantle White's queenside.
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Nf3 c5 8.Rb1 O-O 9.Be2 cxd4 10.cxd4 Qa5+ 11.Bd2 Qxa2 12.O-O Bg4
Move by move
- 1.d4 – White occupies the center with the Queen's pawn: controls e5 and c5 and opens diagonals for the c1 Bishop and the Queen.
- 1...Nf6 – Black develops the Knight and controls e4 and d5: prevents an immediate 2.e4 and prepares the Grünfeld structure.
- 2.c4 – White gains central space with the c-pawn: controls d5 and prepares harmonious Knight development to c3.
- 2...g6 – The signature move of the Grünfeld: Black prepares the fianchetto of the Bishop on g7 to pressure White's center from afar.
- 3.Nc3 – White develops the Knight toward the center: guards d5 and prepares to seize the full center with e2-e4.
- 3...d5 – The defining thrust of the Grünfeld Defense: Black immediately challenges White's center with d5 before castling.
- 4.cxd5 – White captures on d5 opening the c-file and inviting Black's Knight to take center stage.
- 4...Nxd5 – The Black Knight recaptures in the center with tempo, establishing a dominant post and clearing the way for pawns.
- 5.e4 – White seizes the center with e4 gaining space and attacking Black's Knight to win tempi.
- 5...Nxc3 – Black trades knights on c3, reducing pieces and forcing White's b-pawn to recapture toward the center.
- 6.bxc3 – White recaptures toward the center: builds an imposing c3-d4-e4 pawn block but offers Black tangible targets.
- 6...Bg7 – The Bishop takes command of the long h8-a1 diagonal: from here it will continuously harass White's c3-d4 center.
- 7.Nf3 – White develops the King's Knight naturally to f3, controlling d4 and e5 and preparing rapid castling.
- 7...c5 – Black immediately counterattacks in the center with ...c5, challenging the d4 pawn and freeing the Queen.
- 8.Rb1 – Boris Spassky's innovation: the Rook steps out of the g7 Bishop's diagonal and threatens to invade on the b-file.
- 8...O-O – Black shelters the King with kingside castling, letting White define intentions on the b7 square.
- 9.Be2 – The Bishop develops solidly to e2, guarding the King and preparing castling without conceding weaknesses.
- 9...cxd4 – Black dissolves White's central chain, opening the c-file for the Queen and future rook operations.
- 10.cxd4 – White recaptures with the c-pawn, restoring the broad pawn center but leaving the a2 pawn unprotected.
- 10...Qa5+ – Incisive queen check: forces the Bishop to interpose on d2 and opens access to the loose a2 pawn.
- 11.Bd2 – The Bishop interposes on d2 to block the check, leaving the a2 pawn exposed to Black's Queen.
- 11...Qxa2 – Critical pawn capture: Black pockets the a2 pawn, creating a dangerous queenside passed pawn majority.
- 12.O-O – White completes castling, securing the King and preparing heavy piece counterplay against Black's a2 Queen.
- 12...Bg4 – Aggressive pin: the Bishop develops to g4 threatening to chop the f3 Knight that guards White's center.
How to exploit the position
Sharp, double-edged position: Black has pocketed the a2 pawn and holds a material plus with a healthy queenside majority, while White seeks initiative on the b-file.
- Coordinate queen retreats or consolidation via ...Qa3 or ...Qa5, keeping control over invasion squares.
- Pin the f3 knight with ...Bg4 to eliminate White's primary central defender on d4.
- Develop the b8 knight to c6 or d7 to challenge central squares and wrap up mobilization.
- Advance the queenside majority with ...a5 and ...b5 to create an unstoppable passed pawn backed by the g7 bishop.
Master tips
Grabbing on a2 with precision
The 11...Qxa2 raid is theoretically sound but demands absolute precision: Black's queen must never get trapped on the flank.