White to move. Can you find the best continuation? 
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1. Rc8+ Kxc8
2. b7+ Kb8
3. d5 Kc7
4. a8=B (a8=Q or a8=R is stalemate)
and white wins with the last pawn,
4 … Kb8
5. Bb7 Kc7
6. Kxa7 and so on
Cheers
Giuseppe
…Rc8+
Kxc8 b7+
Kb8 d5
Kc7 pxa8(N)+
Kb8 Nc7
Kxc7 Kxa7
Kd8 Kb8
if Ke8 then Kc8
and if Ke7 then Kc7
Kd8 Kxd6
Ke8 Kc5
Kc7 d6+
Kc8 Kc5
Kd8 Kb6
Kc8 Ka7
and black gets pushed off to the right because white’s pawn on d6 prevents access to the 7th rank and then white gobbles the pawn and queens.
woops nevermind promoting to knight is a draw promoting to bishop is a win
1. Rc8+ Kc8
2. b7+ Kb8 (if 2..Kc7 then 3. bxa8(R) )
3. d5 Kc7
4. bxa8(B) Kb8
5. Bb7 Kc7
6. Kxa7 Kd8
7. Kb8 Ke8
8. Kc7 Ke7
9. Bc8 looks like the remaining pawns fall
@tom d – i followed ‘ur variation up to 9. Bc8 … very impressive – but what about 9. … Kd8! -? what the heck will make this dammned black pawns fall? i’m not sure about the over all solution …
Vohaul
b7, d5
rd6 kc7
bxa8=Q
– Vinay
Am I missing something? What is wrong with
1. b7 d5
2. Rc8#
1. b7 dxc6
Also Vohaul, there is no 9..Kd8 because the white king is already at c7.
@ all the both 1. b7 fans … what do you think about taking that dammned old rook on c6 by that primitive pawn attacking him permanently … chess makes blind, does it not?
*laughing, Vohaul
indeed @anonym – because my king won’t move to e8 after 7.Kb8 but to e7 – but it won’t change anything – u are right!
sincerly – Vohaul
What about:
1. Rxd6 Kc8 (only move)
2. b7+ Kc6
3. bxa8Q Kxd6
4. Qxa7 and white has the win.
oops, missed 1…. axb6
The correct answer is 1. Rc8+ Kxc8 2. b7+ Kb8 3. d5 Kc7 4. bxa8 (B) and White will eventually win the last two pawns.
Best wishes,
Susan Polgar
http://www.PolgarChess.com
http://www.SusanPolgar.com
@Vohaul — Black cannot go 9…Kd8 as the white King is on C7. The pawns might fall something like this.
9….. Ke8
10. Bxd7+ Ke7
11. Bc6 K moves
12. Kxd6 K moves
13. Kc7 and the pawn promotes
Susan, was this from a GM game or was this a theoretical position?
I learned a lot from this one!
Dear Michael W. Towns,
I hope that you will read this 5 years later, but…
this position is in fact a study by the composer and strong player Selezniev.
Full source:
Selezniev, 64, 1935.
Note: the position after the third White move is particular, because the one that moves is disadvantaged. Here, he even loses immediately!
This is called a reciprocal zugzwang, or recizug.
Timman, in his Schaakwerk, composed a study with the same climax in 1990.