White to move. How should White proceed?
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White to move. How should White proceed?
1. f5xg6+
1. hxg6 or Kf8
2.Rf4
1. Kxg6 or Kg7 or Kg8
2. Rxe7
1. Ke8
2.Rxe7+ Qxe7
3.gxh7 Qxe4
4.h8=Q+ Ke7
5.Qg7+ followed by Rf4
br
Rainer
pxg6 Ke8
Rxe7 Qxe7
Qxe7 Kxe7
Pxh7
this is about all i can see. i dont see a mate.
wolverine
i should have used the solution by systematic breakdown like the professor of chess problems used earlier. hes obviously mastered the game of chess and we should all listen to his knowledge. im rolling over laughing at that guy.
wolverine
f5xg6+ and mate in only 65 more moves.
Let’s summarize :
1.fxg6 Ke8
(1..hxg6? 2.Rf4 Rxe5 3.Qxe5 +-)
(1..Kxg6? 2.Rg4 or Rxe7 +-)
(1..Qxg6? 2.Rxe7 +-)
(1..Kg7? or Kg8 2.Rxe7 +-)
2.Rxe7 (2.Rexd5? Rxe4 3.Rxd8 Qxd8 -+) Qxe7 3.gxh7 (3.Qxe7 Kxe7 4.gxh6 Ke6 and Rh8,Rxh7 unclear) Qxe4 4.h8Q Ke7 5.Qg7 Kd6 6.Rf4 Qe2 unclear
another try :
1.Re6 Rxe6 (1..Qxf5 2.Rxe7) (1..Ke8 2.Rxf6 Rxe4 3.fxg6 hxg6 4.Rxa6 +=) 2.fxe6 Qxe6 3.Rf4 Ke7 4.Qa7 Rd7 unclear
another try :
1.Qh6? Rxe5 2.Qxh7 Ke8 (2…Qg7? 3.fxg6 Kf6 4.Rf4 +-) (2…Kf8 3.Qh6 Kg8 -+) and -+
another try :
1.Rxe7?! Qxe7 2.fxg6 hxg6 (or even 2…Ke8!? transposing into 1.fxg) 3.Rf4 Ke8 and white has nothing
Where have I missed something ??
Stephane
I believe the rook and pawn ending is won for white.
1.fxg6+ Ke8
2.Rxe7+ Qxe7
3.Qxe7+ Kxe7
4.gxh7 Ke6
5.Rg4!
and black cannot stop the advance of whites connected kingside pawns.
While white can stop blacks queenside pawns.
In your line : 1.fxg6+ Ke8 2.Rxe7+ Qxe7 3.Qxe7+ Kxe7 4.gxh7 Ke6 5.Rg4!
Your generic statement does not can justify a win for white. A very precise analysis is required :
5…Rh8 6.Rg7 a5 (6..d4 7.Kg2) 7.g4 Kf6 (7…b4 8.axb4 axb4 9.g5 b3 10.g6 Kf6 11.Rg8) 8.Rb7 b4 9.axb4 axb4 and I cannot see a clear win.
Stephane
1. fxg6+, Ke8
2. Rf4
2. -, Qxe5
3. Qxe5,Rxe5
4. g7 +-
or
2. -, Rxe5
3. Rxf6, Rxe3
4. g7 +-
I disagree on 1. fxg6+, Ke8 2. Rf4
neither 2. -, Qxe5 3. Qxe5,Rxe5 4.g7
nor 2. -, Rxe5 3. Rxf6, Rxe3 4.g7
is won after 4…Ke7
Stephane
a nice endgame puzzle… and by the way a puzzle, which evidently shows, that the scientific method proposed by the chess professor can fail, sometimes :-)..
however, the rook endgame after 1.fxg6+ Ke8
2.Rxe7+ Qxe7
3.Qxe7+ (all of a sudden white run out ouf checks … ^^)
3…Kxe7
4.gxh7
is a clear win for white, in my humble opinion. I didn’t have the time for a very deep analysis but i analized 4…Ke6 and 4…Rh8:
the latter first:
4…Rh8
5.Rxd5 Rxh7
6.Kg2! Rh8
7.Kf3 Rc8
8.Ke4 Rc4+
9.Rd4 Rc3
10.Rd3 Rc4+
(10…Rc6 11.g4 Ke6 12.Kf4 a5 13.h5 Rb6 14.g5 b4 15.g6 Kf6 (15…b3 16.h6!) 16.Rd5 bxa3 17.Rf5+ Ke7 18.g7+-)
11.Kf5 Rc5+
12.Kg6 Rc6+
13.Kg7! a5
(13…Ke6 14.g4 Rc4 15.Rg3 Rc7+ 16.Kg6 a5 17.h5 Ke5 18.h6 Rc6+ 19.Kh5+-)
14.Rb3!+- white wins.
now let’s have a look on 4…Ke6 (the better choice!):
4…Ke6
5.Rg4 Rh8
6.Rg7 a5
(6…d4 7.Kg2 Kf6 8.Rd7 Ke6 9.Ra7 Kd5 10.Kf3 Kc4 11.g4+-)
7.g4 b4
(7…d4 does not help either, but it took me a lot of time to accept this ^^. that’s exactly the reason, why i dare to torture you with the following lines…^^
8.Kg3 d3
(8…b4 9.axb4 axb4 10.Rb7+-)
9.Kf3 Kf6
10.Rb7 Rd8
(10…d2 11.Ke2 Rd8 12.Kd1 b4 13.axb4 axb4 14.Rd7 Rh8 15.Kxd2+-) 11.g5+ Ke6
(11…Kg6 12.Rd7! Rxd7 13.h8Q d2 14.Qf6+ Kh7 15.Qf5++-)
12.Rxb5 d2
13.Rb1+-)
back to ther main line:
8.axb4 axb4
9.g5
followed by 10.g6 will win for white
greetings
Hi vohaul
Your analysis does not provide anything against the line I had given, namely :
1.fxg6+ Ke8 2.Rxe7+ Qxe7 3.Qxe7+ Kxe7 4.gxh7 Ke6 5.Rg4 Rh8 6.Rg7 a5 7.g4 Kf6! (preventing g5 and attacking Rg7) 8.Rb7 (what else : black plays anyway b4) b4 9.axb4 axb4 and I cannot see a clear win
Stephane
Re: 1.fxg6+ Ke8 2.Rxe7+ Qxe7 3. Qxe7
I think that 3. Qxe7 is slightly inaccurate, because keeping the queens on the board favors White in this position. So White should play something like 3. Qd3 instead.
@stephane
8.Rb7 b4 9.axb4 axb4 of course, but now 10.Kg3 d4 (what else?) 11.Kf4! Kg6 12.h5+ Kf6 ( 12…Kh6 13.Kg3 Rxh7 ( 13…d3 14.Kh4 Rg8 15.hxg=N #) 14.g5+) 13.g5+ Ke6 14.g6 ++++-
no way out … 🙂
greetings
@steven craig miller: 2.rxe7 is a check – no way out but qxe7 except 2…kf8 but after this move, the black queen will also disappear from the board if white plays 3.rf4…
no way out…
greetings