Under much pressure, Anand outclassed Jones and finally registered a win after 17 Classical Chess games.
Magnus Carlsen [ Images ] of Norway continued with his top form to beat Michael Adams of England.
Vladimir Kramnik [ Images ] accounted for Luke Mcshane to complete the English rout in the fifth round while American Hikaru Nakamura coasted to a win against the world's best woman player Judit Polgar of Hungary.
The victory took Carlsen to an astonishing 13 points from four games in the soccer-like scoring system in place in the tournament.
Kramnik remains on the toes of the leader with 11 points in his kitty and the rest of the field is now far behind.
For the record, Hikaru Nakamura holds the third spot on eight points and is followed by Michael Adams.
Anand jumped to sole fifth place with six points, two clear of Levon Aronian of Armenia.
Gawain Jones, on two points, holds the seventh spot, while Polgar and McShane are at the bottom of the standings with just one point in their bag.
Four rounds still remain in the highest category tournament in the UK.
Results round 5:
Gawain Jones (Eng, 2) lost to V Anand (Ind, 6); Michael Adams (Eng, 7) lost to Magnus Carlsen (Nor, 13); Vladimir Kramnik (Rus, 11) beat Luke McShane (Eng, 1); Judit Polgar (Hun, 1) lost to Hikaru Nakamura (Usa, 8).
The moves: G Jones - V Anand
1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 e5 9. d5 c6 10. h4 cxd5 11. exd5 N8d7 12. h5 Nf6 13. hxg6 fxg6 14. Nh3 e4 15. fxe4 Ng4 16. Bf4 Ne5 17. Bg5 Qd6 18. Nb5 Qc5 19. Na3 Bxh3 20. Be3 Qc8 21. Rc1 Qg4 22. Rxh3 Qxh3 23. gxh3 Nf3+ 24. Ke2 Nxd2 25. Bxd2 Bxb2 26. Nb5 Bxc1 27. Bxc1 Nxd5 28. exd5 Rae8+ 29. Be3 Rxf1. White resigned.