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likesforests
06-10-2006, 04:34 PM
I've studied Rook vs Pawn endings and boiled it down into a few simple rules. Would you guess, 54% of the time, the side with the pawn draws? To learn the secrets of this ending, read today's entry on my blog.

ER
07-10-2006, 01:14 AM
I've studied Rook vs Pawn endings and boiled it down into a few simple rules. Would you guess, 54% of the time, the side with the pawn draws? To learn the secrets of this ending, read today's entry on my blog.

Good work in the R+P endings LF. I think if you included a few standard positions of Lucena, Philidor and Saavedra for example, it would have been more complete. Excellent blog as well. Keep up the good work!
Cheers and good luck!

likesforests
07-10-2006, 04:30 AM
Thanks, heaviestknight!

Barbier-Saavedra is a fascinating position. Who would guess, White to win??

FEN: 8/8/1KP5/3r4/8/8/8/k7 w - - 0 1
Diagram: http://tinyurl.com/qtjqr

The natural moves 1.c7 Rd6+ 2.Kc5? Rd2! lead only to a draw.

I found a stronger sequence: 1.c7 Rd6+ 2.Kb5! Rd5+ 3.Kb4 Rd4+ 4.Kb3 Rd3+ 5. Kc2... but Black still manages a draw if he sees 5.Rd4! 6.c8=Q Rc4+ 7.Qxc4 1/2-1/2. When Barbier created the position, that was the solution he had in mind.

However, the monk Saavedra found an incredible continuation! 6.c8=R!! Ra4 7.Kb3 Kb1 8.Kxa4 and White wins.

While Barbier-Saavedra is exciting, and studying it will improve your calculation skills, I think it has very little practical value. In a 406,000 game database, the pawn side of rook vs pawn has only won once (on time). Rook vs Pawn is a draw, or a win for the rook side.

I'll add Lucena, Philidor, and Vancura as soon as I get to the Rook vs Rook and Pawn section. :)

Desmond
07-10-2006, 08:25 AM
8/8/1KP5/3r4/8/8/8/k7 w - - 0 1

Likeforests, you can insert the position by using the following code (replace my '{' & '} with '[' & ']':
{fen}8/8/1KP5/3r4/8/8/8/k7 w - - 0 1{/fen}

likesforests
07-10-2006, 08:48 AM
Thanks, Boris. I was looking for such a feature.

MichaelBaron
08-10-2006, 03:51 PM
8/8/1KP5/3r4/8/8/8/k7 w - - 0 1

Likeforests, you can insert the position by using the following code (replace my '{' & '} with '[' & ']':
{fen}8/8/1KP5/3r4/8/8/8/k7 w - - 0 1{/fen}

Very memorable position..someone showed it to me for the first time when i was 9 years old. It brings a lot of memories..

ER
08-10-2006, 04:03 PM
LF, you 've started a great thread here, and I hope you and other players, such as Michael and Boris continue contributing with position and presentation ideas. In my opinion, this kind of threads is what we need most here and I think yours is the best in this forum! Keep up the good work!
Cheers and good luck!

likesforests
10-10-2006, 05:15 PM
8/8/RK3kp1/5p2/8/7p/8/8 w - - 0 57

This is from a blitz game I played today. What is White's best move?

1.Ra3! h2 2.Rh3 h1=Q 3.Rxh1

To pick off a pawn on the third rank, your rook moves in a Z-shape pattern. This position has much in common with the "Force Field" position on my Rook vs Pawns page.