Lolli
White to move and win.
8/8/kP6/2R1K3/8/8/1p6/8 w – – 0 1
Chess Daily News from Susan Polgar
Unusual endgame pattern
About Author
Lolli
White to move and win.
8/8/kP6/2R1K3/8/8/1p6/8 w – – 0 1
1. Rb5! , if 1… Kxb5 then 2. b7 wins.
Rb5 wins
At first glance 1. Rb5 looks good, and if 1. … Kxb5, then 2. b7, when the b-pawn cannot be stopped and 2. … b1Q loses to 3. b8Q+
1.Rb5, Kxb5
2.b7, b1=Q
3.b8=Q+, …
and the black king gets stabbed on its back.
Is this a deja vu? Yes, we already saw this pattern in your post of 8/04/2009 at 02:51:00 PM. Susan, we are learning a lot from your blog. Keep up the good work!
Isn’t this pretty much the same as the “Special Endgame Pattern” puzzle from yesterday or the day before?
1. Rb5 Kxb5
2. b7 b1Q
3. b8Q+ K any
4. Qxb1 1-0
Black can’t refuse the rook, since after any other move, Rxb2 or b1 is also obviously 1-0.
1. Rb5+-
1. … Kxb5
2. b7 b1Q
3. b8Q K moves
4. Qxb1 and wins.
Rb5
This seems a lot like the puzzle from two days ago…
1. Rb5! seems to do trick:
1. .. Kxb5 2. b7 b1Q 3.b8Q+
1. .. Kb7 2. Rxb2
1. Rb5 Kxb5
2. b7 b1(Q)
3. b8(Q) or (R)+ wins the newly-promoted queen.
Rb5 wins.
1. Rb5 Kxb5
2. b7
and there is no way for black to stop white from being atleast a queen up. 🙂
-RJ
Rb5! and skewer tactic.
Rb5! and 1-0
rb5 wins because although black gets his queen first, white gets his with check and takes black queen out for good 🙂
easy…
Rb5 (threatening Rxp) Kxb5
b7 b1=Q
b8=Q+ K moves
QxQ 1-0
rb5 wins.
Rb5 and on.
1. Rb5! Took me awhile to find.
Beautiful!
1…. KxR
2. b7 b1=Q or whatelse?
3. b8+ =Q K anywhere
4. QxQ and White is winning.
RB5!
KxB5
B7
b1=Q
b8=Q+
…
QxQ
it seems simple, let me try 1.Rb5 Kxb5 2.b7 Kc4 3.b8Q Kc3 4.Qb5 Kc2 5.Qc4+ Kd2 6.Qb3 Kc1 7.Qc3+ Kb1 8.Kd4 Ka2 9.Qc2 Ka1 10.Qa4+ Kb1 11.Kd3 Kc1 12.Qc2++ maybe there are other lines, i’m not sure
Rb5 should do the trick..
Rb5 wins. After Kxb5, b7.
This one is easy
1. Rb5 Kxb5
2. b7 b1Q
3. b8Q+ (or b8R+)
Rb5 Kb5
b7 b1Q
b8Q
1.Rb5 Kxb5 2.b7 b1=Q 3.b8=Q+ K moves & 4.Qxb1 1-0
Rb5! KxR b7 b1=Q b8=Q
1.Rb5
1. Rb5
If Black advances his pawn, it is lost, and the White pawn is still protected from the King. Same goes for Black attempting to block the White Pawn at B7. The King’s only other legal move is to take the Rook. It is the positioning of the White King that makes all the difference.
1. Rb5 Kxb5
2. b7 b1(Q)
3. b8(Q)+ anything
4. QxQ
and White should win.
1.Rb5 Kxb5 2.b7 b1=Q 3.b8=Q+
Rb5!!
Rb5!!
Rb5!!
Rb5
Rb5 looks good. Stops the pawn cold and if the king takes, b7 will queen with check after black queens, skewering the king and new queen. Black will have to move his king out of the potential check, losing a tempo, allowing white to queen first, again stopping the new black queen.
Very elegant.
It´s too obvious: 1.Rb5 !!, and after the best continuation 1. … ,Kxb5, 2.b7 and the black player is almost lost.
1. Rb5! Kb5 2. b7 b1=Q 3. b8=Q+ and White Wins
Nice but simple! like it.
1.Rb5 1-0
1.Rb5 Kxb5 2.b7 +-
1. Rb5 threatening to capture the Black pawn.
1. … Kxb5
2. b7 b1=Q
3. b8=Q(or R)+ skewering the new Black queen.
3. … K moves.
4. Q(or R)xb1 +-
I think that 1) Rb5, …; wins
Ciao
Luigi
Rb5 wins
No comments yet? guess the moderator(s) are busy.
Rb5 isn’t too hard to find
1. Rb5 Kxb5
2. b7 b1=Q
3. b8=Q+
1.Rb5! Kxb5 2.b7 b1Q 3.b8Q+ +-
1. Rb5 Kxb5 2. b7 b1=Q 3. b8=D+ K somewhere 4. Dxb1 1-0
Move the castle thing one square to the left
1. Rb5 is a direct win for white
HT
1. Rb5 and either wins the pawn or promotes with check and X-rays Black’s new Q before it can move.
1.Rb5 !
Medhat
I like:
1. Rb5
followed by b7 (whether or not 1…Kxb5
Rb5 Kxb5
..
1. Rb5!! Kxb5
2. b7 b1Q
3. b8Q+ ka5
4. Rxb1
It took me a couple of minutes but:
Rb5! wins.
If:
… Kxb5
b7 b1=Q
b8=Q+ Kc5
Qxb1
1.Rb5 KxRb5 2.b7 and if b1=Q b8=Q(or R) and white wins. If black doesn’t crown the Queen vs pawn ending is won.
1. Rb5 KxRb5 2.b7 if b1=Q 3.b8=Q+ and wins, if not the queen vs pawn ending is won.
Looks like Rb5 wins in all continuations. If 1…Kb5, then
2 b7 and the King will be skewered.
1.Rb5
After Black moves, White either takes the pawn or skewers the Queen by Queening with check.
rb5
Rb5 Kxb5
b7 b1=Q
b8=Q+ and black loses queen.
1. Rb6 kxR 2. pb7 k any move and white wins . . .
1. Rb5 if 1…Kb5 2.b7 b1Q b8Q and then white wins capturing the black queen
if 1…Kb7 2. Rb2 and wins
Angelo Piantadosi (Italy)
1. Rb5! Kxb5 2. b7 b1Q 3. b8Q+ and then take the Q on b1.
Rb5
1.Rb5! seems to grab the win for white.
If 1. … Kxb5 then 2. b7 and black can not queen his pawn due to the skewer.
1. Rb5 seems to win for white.
If 1. … Kxb5 then 2. b7 and black can not queen his pawn due to the skewer.
1. Rb5 Kxb5
2. b7 and white wins
Who is Lolli?
Is there something wrong with your blog? I know I put a comment in, but it hasn’t appeared. Rb5 should win.
1.Rb5
Best Regard from Paris
Phil
http://www.chess-and-strategy.com/
Rb5
1.Rb5! Kb5: 2.b7 b1Q 3.b8Q – with check, winning the newly-born black counterpart.
The rest should be easy ,:)
Rb5 kxR; pb7 any king move and black wins.
1.Rb5 Kxb5, 2. b7 1-0
Easy!
1.Rb5! and wins.
If 1…Kxb5 then 2.b7 b1=Q 3.b8=Q+ and 4.QxQ
The simple Rb5 decides, no? If black doesn’t grab the rook, the black pawn is taken; if black does grab the rook, b7 followed by b8(QorR)+ decides.
Will Rb5 work? If KxR the pawn is free to Queen with a check and take QxQb1, if not white Rxb2.
Arun
1.Rb5!
The b pawn is then protected, as 1… Kxb5 leads to 2.b7.
Black can’t take advantage of its pawn with 2…b1=Q, as 3.b8=Q+ wins the Queen and the game.
2…Kc4 or 2…Ka4 sees 3.b8=Q, and Black will lose tempi in protecting the pawn, the white Queen forcing …Kb1 in the future. Once the white King reaches the zone, White wins.
A great pattern!
I just saw a similar pattern.
White to move in this setuo:
White Pawn: b6, King: e7
Black: Pawn: b2, King: b4
Black is ahead a tempo, but the king makes the tempo useless due to being on the same line as the promotion squares for both black and white. But it can move towards the pawn to prevent the pawn from being lost immediately when white queens.
Then you have a tricky way for the white queen to force the black king to b1 so the white king can move toward black’s pawn.
There must be a problem with moderation today. There are long delays for comments being approved, and in the meantime some spam is being posted. Flagging comments with links will not work for end game, because even its username is spam.
You have all missed the most stubborn defense by black.
1. Rb5 Kxb5
2. b7
is the start. But now
2. — Kc4
3. b8=Q Kc3
and black is back in time to protect the pawn. White will now have to do some carefull manouvering to keep the black pawn from queening. It is still a win for white but much more difficult than the 2. — b1=Q line.
Nobody cares, b-pawn and king vs queen is a well known win for the queen.
Seriously, why 81 comments? I saw this in like 10 seconds. You don’t all need to comment.
“Flagging comments with links will not work for end game, because even its username is spam.”
Besame culo, Miguel.
Puto.
Andrew, there has been a long delay for moderation. It looked like there were no comments at all, and all of a sudden they appeared at once, this is why there are so many.
Anonymous @ 6:01:00 PM CDT, you are right when you say that 2. … , Kc4 is the most stubborn defense by black, but like Andrew said, the resulting position is a win for white after some basic maneouvering.
Anyway, your remark is interesting because that defense does make a difference when all men are shifted one column. Then, the resulting position would be a draw.
Concerning the latest comments (2.-Kc4 would be a better defense): Queen vs. b-pawn on the second rank is winning ‘easily’ – one only has to know standard endgame theory. As far as I am concerned, a puzzle is solved once such a position is reached. And things would be the same if black could play 2.-Kc3; only the illegal moves b2-a2 or b2-c2 would hold a draw ,:) .