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1.Be7 Re1+ 2.Kd6 Rxe7 3.c7 Rxc7 4.Kxc7 Ke7 5.Kb7 Kd7 6.Kxa7 Kc7 7.c4 /+-/
Endgame win for White.
1. c7 Re1+
2. Be5 Rxe5+
3. Kd6!
(3. Kxe5? Kd7 4. c8Q+ Kxc8 5. Ke6 Kc7! =)
3. …Rd5+
4. Kc6! Rd8
5. cxd8Q+ Kxd8
6. Kb7 +-
The gap c4 indicates zwugzwang some where.
1.c7 Re1+
2.Be5 Rxe5+
3.Kd6 (3.KxR Kd7 is a sefety bet for black.)
3…. Rd5+
4.Kc6 Rd8
5.Kb7
(5.cxd8=Q+ Kxd8 6.Kb7 c4!(6…. Kd7 7.Kxa7 Kc7 8.c4! wins for white) 7.Kc6 Ke7 8.Kd5 Kd7 9.Kxc4 Kc7 10.Kd5 Kd8 11.c4 Kc7 12.c5 bxc5 13.Kxc5 is a draw)
5…. Rd7
6.Kxa7 Rxc7+
7.Kxb6 Rc8
8.Kb7 Kd7
9.a7 Rh8
10.a8=Q Rxa8
11.Kxa8 white wins.
1.c7 Re1+ 2.Be5.. then 3.c8=Q8++
Here it is possible to spend a good deal time on calculating what goodlooking moves don’t work:
Try A:
1. c7? Re1+
2. Be5 (Kd5? Kd7 looses) Rxe5+
3. Kxe5 Kd7 is a draw, black goes for stalemate on a8.
Try B (looked like an improvement on A):
1. Be7? Re1+
2. Kd6 Rxe7
3. c7 Rxc7
4. Kxc7 c4!! (also possible on the next couple of moves)
5. Kb7 Kd7 etc.
White K is locked in on a7/a8 and has then no zugzwang by means of c4 to get at the b6 pawn. A draw.
So both 1. c7 and 1. Be7 can be excluded.
Now I feel that 1. Bb8 looks promising (idea to eat the black pawn chain from behind). But perhaps not.
Yet another idea could be 1. Bxc3
Both those lines are too complicated for me to calculate.
There are too many variations.
But I really do guess that one of those should be a win for white!
1. c7 Re1+ 2. Be5 Rxe5+ 3. Kd6 Rd5+ 4. Kc6 Rd8 5. cxd8Q+ Kxd8 6. Kb7 Kd7 7. Kxa7 Kc7 8. c4 Kc8 9. Kxb6 etc. 1-0
Draw easy.
what i see a win!
This is a beauty. The draw is easy to find, but the win won’t be easy for many people, though I did find it almost immediately after finding the easy draw:
1. c7 Re1 (what else?)
2. Be5!
Hard to see any other move holding here for white. 2.Kd5 might draw, or it might not, but white can only draw at best by maintaining the c7 pawn. With 2.Be5, white keeps the pressure on by denying the black king the d7 square. Continuing:
2. ……Re5
This is forced. No other way to stop the c-pawn now. The rest is quite pretty…..
3. Kd6!
After 3.Ke5, white can only draw this, since black’s king takes d7 and will win the c7 pawn and take residence in the corner. However, by not taking the rook, white keeps control of the d7 square, cutting black’s king off from the pawn. The best black can do here is to continue to check…
3. ……Rd5
4. Kc6
I don’t know if white can take the rook now, but in any case Kc6 is clearly winning because…
4. ……Rd8 (what else?)
5. Kb7!
Again, I am not quite sure (without working it out) white can win with an immediate cd8(Q).
5. ……c4 (alternative below)
6. Ka7 Rc8 (what else now?)
7. Kb6 Kd7 (what else?)
8. a7 Kd6 (nothing else now)
9. Ka6
More accurate than an immediate 9.Kb7, but even that should win. The point behind Ka6 is that black can’t take at c7 with check. Continuing:
9. ……Kc7
10.b6 Kc6
11.b7 and white wins with ease.
At move 5 in the line above, black didn’t have another better move than c4….
5. ……Rd7
6. Ka7! Rc7
7. Kb6 Kd7 (what is better?)
8. a7 Rc8 (Ra7 9.Ka7+-)
9. Kb7 Re8 (or Rf8 etc)
10.a8Q Ra8
11.Ka8 and black can’t stop Ka7 followed by b6-b7-b8Q.
Decided to try to work out an early rook capture to see if I was making this too hard:
1. c7 Re1
2. Be5 Re5
3. Kd6 Rd5
4. Kd5
This is the variation. Before, I showed 4.Kc6 is a winner in all lines. Continuing:
4. ……Kd7
5. c8Q Kc8
6. Kc6
It is important to understand why white couldn’t take the rook at e5 at move 3- he couldn’t reach this position since the black king would shut him out before he could reach the c-file. The only question I had in my mind earlier was whether or not white could win by forcing black to play c4. Let’s see…
6. ……Kb8
7. Kd7
The idea is to trap the black king on a8 long enough to force him to play c4. Continuing:
7. ……Ka8 (or c4 now)
8. Kc7 c4 (forced now)
9. Kd6 Kb8
10.Kd5 Kc7
11.Kc4
Now, white is up a pawn, but it isn’t necessarily won. The problem is that white will have to push the c-pawn and exchange at c5 followed by an exchange at b6, but this will leave white with the a-pawn, and no clear way to get the king out of the corner. I think this has to be drawn.
After 5.Kb7 Kd7 I had planned 6.cxd8=Q+ Kxd8 7.Kxa7 when black had no time for …. c4.He had to play 7…. Kc7 to support b6 and had to give way after 8.c4.But Yancey’s 5…. c4 floored me and changed course of main line.
After 5…. c4 6.cxd8=Q+ will only lead to draw.
5.cxd8=Q+ Kxd8 6.Kb7 c4 will lead to draw.