Black to Move and Win

kenan

Only Chess

16 Mar 08

kenan

Joined: 31 Oct 03
Moves: 17163

16 Mar 08

Originally posted by Heroic Metool
I had posted the answer, but decided to delete it so that it won't be spoiled to other people.

Thanks. Give it a little time to let others figure out. 🙂

kenan

Joined: 31 Oct 03
Moves: 17163

16 Mar 08

Originally posted by Bifrost
As far as I am aware, no chess piece has characteristics. I don't understand what you mean. Any pawn moves the same way.

One key thing you need two know about passed pawns: they become really strong if the opportunity is given.

You have to create that opportunity with the first move.

~~diskamyl~~

Joined: 29 Mar 07
Moves: 1260

16 Mar 08

1 edit

Originally posted by kenan
[fen]6k1/p3b1pp/4p3/4Pp2/Pp1r1P1P/1P4P1/2p2R2/5RK1 w - - 0 1[/fen]

edit: sorry I realized I wasn't supposed to give the answer.

kenan

Joined: 31 Oct 03
Moves: 17163

16 Mar 08

Originally posted by diskamyl
edit: sorry I realized I wasn't supposed to give the answer.

Just for at least 1 hour or so others can enjoy too. 😉

MeadowMaker

Earth

Joined: 04 Aug 06
Moves: 28868

16 Mar 08

Originally posted by kenan
Just for at least 1 hour or so others can enjoy too. 😉

That took me bloody ages! Very hard to see the logic behind the first move.

Although given we aren't allowed to post the answer, I could just say I'd got it to sound clever 🙂

badivan1

Joined: 18 Apr 06
Moves: 31699

16 Mar 08

how about 1...Bc5 2.Rxc2 Rc4+?

kenan

Joined: 31 Oct 03
Moves: 17163

16 Mar 08

2 edits

Originally posted by badivan1
how about 1...Bc5 2.Rxc2 Rc4+?

I would have played Bc5 cold turkey in prospect of pinning the rook but there's a better move.

"1...Bc5?

2.Rxc2 Rc4+!

3. Rcf2! Rc3!

4.Kg2 Bxf2

5.Rxf2 Rxb3

6. Rd2 Ra3

7.Rd8+! Kf7

8.Rd7+ Kg6

9.Rxa7 is with equality."

badivan1

Joined: 18 Apr 06
Moves: 31699

17 Mar 08

1 edit

then how about Rc4, forcing the creation of a second passed pawn?

i'm thinking 1...Rc4! 2.bxc4 Bc5 3.Rc1 b3 winning?

tomtom232

Joined: 15 Jun 06
Moves: 16334

17 Mar 08

1 edit

Originally posted by kenan
[fen]6k1/p3b1pp/4p3/4Pp2/Pp1r1P1P/1P4P1/2p2R2/5RK1 w - - 0 1[/fen]

Rc4 I believe

EDIT: oops..already posted

kenan

Joined: 31 Oct 03
Moves: 17163

17 Mar 08

2 edits

Originally posted by badivan1
then how about Rc4, forcing the creation of a second passed pawn?

i'm thinking 1...Rc4! 2.bxc4 Bc5 3.Rc1 b3 winning?

Yes. Excellent answer.

Rc4!! in view to push for a queen wins, bxc4 loses to the idea that 2 passed pawns win against a lone rook. 🙂

"1...Rc4!! (not Bc5 as explained)

2.bxc4 (2.Rc1 Bc5!)

and now 2...Bc5! pinning the rook wins.

3.Kg2 Bxf2 4.Kxf2 b3 etc..."

Ah yes, this is the brilliancy of the iron logician. See http://www.chessgames.com/perl/chessgame?gid=1031758 if interested.

Heroic Metool

São Paulo, Brazil

Joined: 28 Dec 05
Moves: 7191

17 Mar 08

Thanks for posting the full game. I love Botvinnik's style, so straightforward.