[Event "Mahrisch Ostrau"] [Site "?"] [Round "0"] [White "Walter"] [Black "Lasker"] [Result "0-1"] [ECO "D00"] [Opening "Queen's Pawn: Stonewall Attack"] 1. d4 d5 2. e3 Nf6 3. Bd3 Bg4 4. Nf3 e6 5. c4 Nbd7 6. Qb3 { White goes after a pawn but allows his kingside to get busted open.} 6... Bxf3 7. gxf3 c5 8. cxd5 exd5 9. Qxb7 cxd4 10. exd4 Bd6 11. Nc3 O-O 12. Nxd5 { Taking this second pawn is very risky, since his king will now be permanently stuck in the center.} 12... Qa5+ {By this maneuver Black prevents exchanges and gets his queen to a good attacking square.} 13. Nc3 Qh5 14. Be2 {Black was threatening 14...Rab8 15 Qc6 Rb6 when the f-pawn will fall and Black's queen will give White a major headache.} 14... Rab8 15. Qa6 Rb6 16. Qd3 Re8 17. Ne4 Nd5 18. Nxd6 {White is desparate to castle, but the knight was his only good piece, and with Black's rooks active there's no safety on the kingside.} 18... Rxd6 19. O-O Rde6 20. Re1 Qh3 21. Kh1 { Avoiding 21...Rg6+, but setting up a back rank mate.} 21... Rxe2 0-1