|Dec-05-04|| ||Kaspy2: Levenfish comments this game in his book "rook endgames", an important classic. After move 48, it looks like clear 0-1, yet white could have drawn despite black 's extra free pawn.
49. f5!! ef
50. e6! fe:+
51. Kg6: Kb5
52. Ra1 f4
53. h5 e5
black has 2 extra pawns but can't win
(re1 kc4,re5: kd3, h6 f3, h7 rh7:,kh7: f2 asf.)
|Dec-05-04|| ||Shams: <Kaspy2> thanks bro. a fine resource lasker missed! |
|Sep-01-05|| ||Gypsy: 36...Rd1+ 37.Rxd1 Qxd1+ 38.Kh2 Qd7 ... seems to be a Q-endgame win (38...a5 should also work). Black just has to excercise reasonable caution and expecially prevent White Qd8! For instance, 39.Qg3 a5 40.Qa3 Qd5 41.Qe7 Qd4 42.Kg3 a4 43.Qa3 Kg7 (tempo) 44.Kf3 Qd1+ 45.Kf2 Qc2+! 46.Kg1 (other retreats lose immediately) Qc4 47.Qg3 Qb3 48.Qg5 Qd3 ... and Black easily wins.|
|Sep-18-05|| ||Gypsy: <36...Rd1+ 37.Rxd1 Qxd1+ 38.Kh2 ...> As far as Q endgames go, this setup is a classic scenario. Besides the Q endgames that arise after promotions, this is probably <the> classic scenario:|
Both sides have castled short. White grabed space and has a pawn on e5. Black is trying to hide his king behind the wall f7-g6-h5(h6). (What other good option is there!?) And King side pawns are mostly locked. Finally, Black has a passer somewhere on the Q side and all pieces except for queens have been traded off.
The pivotal square of all such positions is d8 and the pivotal notion is its control. If Black in its haste to push the passed pawn gives up the control of d8, White draws by a perpetual. Otherwise Black shall win.
|Sep-18-05|| ||Gypsy: Ian Snape (Ches Endings Made Simple) gives Browne-Yermolinsky, 1998 (USA Ch, Denver) as the example of play in such a type of a Q endgame. (It currently is not in cg database. Snape gives only the endgame fragment; does anyone has the whole game?)|
|Sep-18-05|| ||Calli: <Gypsy>
[Event "Denver ch-USA B"]
[White "Browne, Walter Shawn"]
[Black "Yermolinsky, Alex"]
[NIC "GI 3.4"]
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Na4 Nf6 6. Nf3 Bg7 7. g3 Nc6 8. Bf4 Nd5
9. e3 Bf5 10. Nh4 Bd7 11. Nc5 b6 12. Nxd7 Qxd7 13. Rc1 Nd8 14. Nf3 O-O 15. Qb3 Nxf4
16. gxf4 c5 17. Bg2 Rc8 18. Ne5 Bxe5 19. dxe5 Nc6 20. O-O Na5 21. Qc2 Qe6 22. b3
Rfd8 23. Rfd1 Nc6 24. Qe4 Nb4 25. Qb1 a5 26. a3 Nc6 27. Qc2 a4 28. bxa4 Na5 29. h3
c4 30. Qc3 Nb3 31. Rxd8 Rxd8 32. Rc2 Na5 33. Rd2 Rxd2 34. Qxd2 Qc8 35. Qc3 Qd7 36.
Bf1 Qxa4 37. Qd4 Qxa3 38. Bxc4 Nxc4 39. Qxc4 Qc5 40. Qa2 b5 41. Qa8 Kg7 42. Qb7
b4 43. Kg2 h6 44. Kg3 e6 45. Qb8 Qc4 46. Qd8 Qd5 47. Qf6 Kg8 48. Qe7 b3 49. Qb4
Kg7 50. e4 Qd3 51. Kg2 Qc2 52. f5 gxf5 53. exf5 exf5 54. Qd6 b2 55. Qf6 Kg8 56.
Qd8 Kh7 57. Qf6 Qe4 58. f3 Qe2 59. Kg3 Qe1 60. Kf4 Qd2 0-1
I'll submit it to CG.
|Sep-18-05|| ||Gypsy: <Calli> Excellent, as always! Thx.|
|Sep-20-05|| ||paladin at large: <white could have drawn despite black 's extra free pawn. 49. f5!! ef >|
Don't think so - what if 49. f5 Kxa4, Black's rook kills the lead white pawn as needed and Black's a-pawn queens, no?
|Sep-20-05|| ||Gypsy: <paladin at large> I think you are looking at the position after the move 49, not before. Black king is still on c6 and 49...Kxa4 is not a feasible move.|
|Sep-21-05|| ||Hesam7: Dvoretsky also covers this ending in his "Endgame Manual", (pg. 184) he begins with 44 g4. |
<1 ... hg+ ?
G. Levenfish lets the white king go ahead for no reason whatsoever. An easy win was 1 ... Ke7 2 gh gh, for example: 3 Ke4 Kd7 4 f5 Kc6 5 f6 Kb5 6 Ra1 a4 7 Kf4 Rg8 , or 3 f5 ef 4 Kf4 Ke6 5 Kg5 Kxe5 6 Kxh5 Kf6! with an inevitable mate.>
he also analyses 49 f5! as enough for achieving the draw.
|Sep-21-05|| ||paladin at large: Oops. thanks <Gypsy> <Hesam7>|
What happens after 49. f5 Kb5.
|Sep-21-05|| ||Gypsy: <What happens after 49. f5 Kb5> 50.Ra1 exf5 51.e6! fxe6 52.Kxg6 saves a tempo as compared to the game. That is sufficient to draw despite the two extra pawns of Black. (White remaining pawn is sufficiently far advanced.)|
|Sep-21-05|| ||paladin at large: Thanks again.|
|Oct-02-05|| ||Gypsy: Here is a link to the Q-endgame mentioned earlier: Browne vs Yermolinsky, 1998|
|Sep-22-12|| ||vinidivici: With the right theory, it will be a draw. The theory for the defense side is "Make the passed pawn the FASTEST you can".|
So to speak, 49.f5!, I played with this position as white with engine got the draw.
64.Kg8 Ra8+ draw
|Sep-22-12|| ||vinidivici: Levenfish could shorten the win out if he did 44.Ke7, catch up the pawn as soon as possible|