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| Nov-30-16 | | AlicesKnight: An intriguing combination of two classic endgame issues (RvP and Q v advanced Ps). |
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| Nov-30-16 | | Doniez: <offramp> thank you so much for the explanation and for the link. Very instructive. |
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Nov-30-16
 | | Richard Taylor: Yes, I was looking for the "draw" by Topalov. Originally the puzzle above was posted by Saavedra as "White to play and draw." But someone found an ingenious win. It is worth trying to work out without moving the pieces. |
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| Nov-30-16 | | clement41: What an endgame! Study-like!
It does indeed remind of the Saavedra position, but an improved version in the sense that black cannot use the stalemate trick.
Svidler's play appears super precise to me, I'd need to computer-check it though. |
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Nov-30-16
 | | offramp: <Richard Taylor: Yes, I was looking for the "draw" by Topalov.
Originally the puzzle above was posted by Saavedra as "White to play and draw." But someone found an ingenious win. It is worth trying to work out without moving the pieces.> Correct except it was Saavedra that found the win. |
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| Nov-30-16 | | Ironmanth: Fantastic game! The endgame here is one reason that chess has inspired me for over 45 years! Y'all savor this. |
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| Nov-30-16 | | 7he5haman: Really enjoyed playing over this game! |
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| Nov-30-16 | | kevin86: A very good game after the Saavadra model. Whitw was long a rook down , but won the game-even for a ime a queen ahead for two pawns! |
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| Nov-30-16 | | gauer: R Fenton vs W Potter, 1875 appears to have more history of how the original form of the theme came to be. |
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| Dec-01-16 | | JohnBoy: This is a magnificent game. The whole plan of locking up the black rook on h5 is lovely. Topalov throws puzzle after puzzle at Svid to recover, but to no avail. Beautiful finish, |
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| Oct-16-20 | | Cheapo by the Dozen: Another puzzle with a dubious starting point. The game move is pretty clearly the only thing that might work. Either you do or don't calculate accurately as to how to queen the pawn without letting Black exchange his rook-up for it. (I made some mistakes.) Finishing up the win from a position of great advantage was a whole separate matter. |
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Oct-16-20
 | | al wazir: Why not simply 55. Kf3 ? What does black do?
55...a3 accomplishes nothing: white can simply capture the ♙. If 55...Re1, then 56. Kf2. There is no way for black to promote a ♙, or even threaten to, and no way to stop white from promoting. |
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| Oct-16-20 | | Walter Glattke: "Lukenas win position" with R-K-P by 49.Re5 (to read in Loewenfish-Smuislov, theory of rook endings, very old book) now 49.-Rxh4+ 50.Kg5 Rh1 51.f7 Rg1+ 52.Kf6 Rf1+ 53.Kxg6 Rg1+ 53.Kf6 wins with that position then. 49.-Rh8 50.Kg5 Kd7 51.Ke7+ Kd8 52.Rg7 49.-Rxh4+ 50.Kg5 Rh5+ 51.Kxg6 Rxe5 52.f7 Re2 53.f8Q wins, now don't ask me, why this wins then. The theory idea was to counter rook checks from behind with e.g. Rf5-Kf6-Pf7 to win. |
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| Oct-16-20 | | Walter Glattke: 62.Kd2 b1N+ 63.Kc2 Ka3 64.Qb2# |
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| Oct-16-20 | | Walter Glattke: But 62.-b1Q 63.QxQ stale mate. |
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| Oct-16-20 | | Walter Glattke: al wazir: good idea, but what continuation then? 55.Kf3 Re1 56.Kf2 Rb1 57.f8Q Rxb2+ 58.Ke1(Ke3) a3 not easy. |
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| Oct-16-20 | | Eurotrash: After looking for one minute, I figured out that 49.Re5 had to be the move, even though I can't claim to have figured out all the lines. |
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| Oct-16-20 | | mlskdney: re5 because the black rook cannot go to g8 without pf7 and white rook can clear up and will loose his g pawn |
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| Oct-16-20 | | dleighton: The Saavedra position is one of the best known chess endgame studies. It is named after the Spanish priest Rev. Fernando Saavedra (1849–1922), who, while living in Glasgow in the late 19th century, spotted a win in a position previously thought to have been a draw. (Wikipedia) |
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| Oct-16-20 | | TheaN: I recognized this very quickly as Saavedra potential due to the configuration of the king side pawns. Once you realize White doesn't have much better than <49.Rxe5 Rxh4+ 50.Kg5! Rh5+> else White can just take g6 and bring Pf6 home <51.Kxg6! Rxe5 52.f7> and <essentially> this is the end of the puzzle, as Black can no longer stop Pf7. It does become more complicated because Black can of course force the step wise ladder down the e- and g-file and win a pawn on the queen side, but with two double isolated pawns Black doesn't have enough to stop the queen. |
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| Oct-16-20 | | Walter Glattke: Potter-Fenton-Saavedra: playing 52.-Re2 53.f8Q Rg2+ 54.Kh5 Rxb2 55.Qe8+ hopeless for black, getting an ending with Pc4 and Rd3 against King and queen, where the books say, this is lost for the rook-party. |
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| Oct-16-20 | | vajeer: What is the continuation after 57...a2 |
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Oct-16-20
 | | Jimfromprovidence: <vajeer> <What is the continuation after 57...a2>, below.
click for larger viewThe short answer is check until you can get the queen to a4. It depends on where black moves the king after check. Below is one way to get there. +7.15 (29 ply) 58.Qc8+ Kb6 59.Qd8+ Ka6 60.Qd6+ Kb7 61.Qd7+ Kb6 62.Qa4 
click for larger view |
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| Oct-16-20 | | vajeer: <Jimfromprovidence> Thanks! That pawn on c3 plays a crucial role in preventing Kb4. And also in the game continuation..allows 63.Qb4+ |
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Oct-16-20
 | | agb2002: White is a pawn down.
Black threatens Rf5+ and Rxh4+.
The black rook prevents the promotion of the past pawn. This suggests 49.Re5: A) 49... Rxh4+ 50.Kg5
A.1) 50... Rh5+ 51.Kxg6
A.1.a) 51... Rxe5 52.f7 Re6+ 53.Kg5 (53.Kf5 Re1) 53... Re5+ 54.Kg4 Re4+ 55.Kg3 Re3+ 56.Kf2 wins. A.1.b) 51... Rh2 52.f7 Rg2+ (52... Rh8 53.Re8 wins) 53.Kf6 Rf2+ 54.Rf5 wins. A.1.c) 51... Rh8 52.f7 Kd7 53.Kg7 wins.
A.2) 50... Rh2 51.f7 Rf2 52.Kxg6 transposes to A.1.b. A.3) 50... Rh8 51.f7 Rf8 (51... Kd7 52.Kxg6 as above) 52.Kxg6 Kd7 53.Kg7 wins. B) 49... Rf5+ 50.Rxf5 gxf5 51.f7 wins.
C) 49... Rh7 50.Kg5
C.1) 50... Kd6 51.Re8 Kd7 52.Re7+ Rxe7 53.fxe7 Kxe7 54.Kxg6 Kf8 55.Kf6 and White's c-pawn will win the game. C.2) 50... Kd7 51.Re7+ as above.
D) 49... Rh8 50.Kg5 Kd6 51.Re7 Rg8 52.f7 Rf8 53.Ra7 Ke6 54.Kxg6 wins. E) 49... Kd6 50.Rxh5 gxh5 51.Kf5 wins.
F) 49... Kd7 50.Rxh5 gxh5 51.Kg5 Ke6 52.Kg6 wins. |
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Kibitzing
sac: 49.Re5