white to play and win

aginis

Posers and Puzzles

12 Jun 06 12:16

aginis

Joined: 11 Jun 06
Moves: 3516

12 Jun 06 12:16

1 edit

this one is pretty famous please don't post the solution if you've already seen it.

oh and partial solutions will be considered incorrect.

crazyblue

Joined: 29 Apr 05
Moves: 827

12 Jun 06 14:52

This is a nice one indeed. Usually pawn is on f6 and rook on e5 though. It's one move longer then 🙂

uzless

The So Fist

Voice of Reason

Joined: 28 Mar 06
Moves: 9908

12 Jun 06 17:24

seems King to F5 would win a queen and facilitate the win

ark13

Enola Straight

mouse mouse mouse

Joined: 16 Jan 05
Moves: 12804

12 Jun 06 19:12

Originally posted by uzless
seems King to F5 would win a queen and facilitate the win

Kf5 fails to Re1

uzless

The So Fist

Voice of Reason

Joined: 28 Mar 06
Moves: 9908

12 Jun 06 19:40

1 edit

Originally posted by ark13
Kf5 fails to Re1

explain

BigDogg

Secret RHP coder

on the payroll

Joined: 26 Nov 04
Moves: 155080

12 Jun 06 20:00

Originally posted by uzless
explain

Try looking for it yourself; you only have to look one move ahead.

Peakite

Sais

Berks.

Joined: 27 Nov 04
Moves: 41991

12 Jun 06 20:01

Originally posted by uzless
explain

1. Kf5 Re1
2. f8=Q Rf1+

Peakite

Sais

Berks.

Joined: 27 Nov 04
Moves: 41991

12 Jun 06 20:03

Which presumably makes the first move Kg5. Black cannot then cover f8 with the rook.

If Re1 then Rg1+ the king can escape to the h-file.

Mephisto2

Joined: 12 Mar 03
Moves: 44411

12 Jun 06 21:37

And if not Re1 (Re5+ for instance)?

Peakite

Sais

Berks.

Joined: 27 Nov 04
Moves: 41991

13 Jun 06 06:01

Kg4 - Kg3 - Kf2

aginis

Joined: 11 Jun 06
Moves: 3516

13 Jun 06 16:45

1 edit

so far none of the solutions posted are complete/correct.
remember black will settle for a draw.

and i'd like to thank everyone who is familiar with the solution for their cooperation.

Gastel

B is for bye bye

Joined: 09 Apr 06
Moves: 27526

13 Jun 06 22:53

Originally posted by aginis
this one is pretty famous please don't post the solution if you've already seen it.

[fen]8/5P2/4r1K1/8/8/8/8/7k[/fen]

oh and partial solutions will be considered incorrect.

1. Kg5 Re5+ (has to or the pawn gets promoted)
2. Kg4 Re4+ (as above)
3. Kg3 Re3+ (as above)
4. Kf2 (rook cannot now check and be safe... a move like Re5 hoping for Rf5+ is trivially defeated by f8=Q after Re5)

crazyblue

Joined: 29 Apr 05
Moves: 827

13 Jun 06 23:38

Originally posted by Gastel
a move like Re5 hoping for Rf5+ is trivially defeated by f8=Q after Re5)

A move like Re4 isn't though, because after Re4 f8=Q Rf4+! ....White has no option but to take the rook and its stalemate.

MarsII

Eternity

Joined: 04 Jun 05
Moves: 3601

15 Jun 06 08:02

Originally posted by crazyblue
A move like Re4 isn't though, because after Re4 f8=Q Rf4+! ....White has no option but to take the rook and its stalemate.

The answer is simple, underpromote to rook, problem solved.

aginis

Joined: 11 Jun 06
Moves: 3516

15 Jun 06 17:00

Originally posted by MarsII
The answer is simple, underpromote to rook, problem solved.

and how are you planning to win a rook vs rook endgame?