Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...a6/4. Ba4/4...Nf6/5. O-O/5...Be7/6. Re1/6...b5/7. Bb3/7...O-O/8. c3/8...d5/9. exd5/9...Nxd5/10. Nxe5/10...Nxe5/11. Rxe5/11...c6

tright Marshall Gambit rd bd qd rd kd bd pd pd pd pd pd pd nd rl bl pl pl pl pl pl pl pl rl nl bl ql kl Common moves: 12. d4 - Main Line 12. d3 - Shirov's Variation Ruy Lopez, Marshall Gambit Main Line Black's move ...c6 nails down the d5-knight. For White to chop it off (12. Bxd5) would now leave Black with the bishop pair on an open board, and three queenside pawns that would tightly restrain White's four. 12. d4 is a natural developing move and the main line. Skip ahead to the first major fork in the road, which occurs after 12...Bd6 13. Re1 Qh4 14. g3 Qh3 12. d3 is a significant sideline favoured by Alexey Shirov. The pawn itself will be weaker for being on d3 instead of d4, but in return White gains the possibility of quickly converting the extra pawn into a passed pawn with a later c4 push. 12. d3 scores slightly better than 12. d4 at master level and is significantly less analysed. Marshall Gambit