White to move. How should White proceed?
Chess Daily News from Susan Polgar
Oldie tactic review
White to move. How should White proceed?
Sacrifice rook to G6… when it’s captured with the pawn, capture pawn on G-6 with Queen. Should be able to mate there with rook and bishop protecting
1. Rxf7+ Rxf7 (1. … Kxf7 2. Qg6#; 1. … Kg8/h8 2. Qh7#) 2. Rg6 Kf8/h8 3. Rg8+ Kxg8 4. Qe8+ Kg7/h7 5. Qxf7+ Kh8 6. Qg8#
1. Rxf7+!! Rxf7 (Kxf7?? 2. Qg6#) 2. Rg6+!! Kf8 3. Rg8+!! Kxg8 4. Qe8+!! Kg7 5. Qxf7+! Kh8 6. Qg8#
The obvious try is:
Rxf7+ Rxf7 (otherwise Qh7#)
Now a choice between Qg6+ and Rg6+.
After the more tempting option (Qg6+? Kf8!), I can’t find an obvious follow up that doesn’t allow Black to bring another defender back. So instead try to make the alternative work before attempting to calculate those lines.
Rg6+Kf8
(if …Kh8, Qe8+ gives mate;
while, …Kh7, Rxh6+!, since …Kxh6, Qg6# else Q+R mates)
After attempting some random forcing moves I think I’ve found one more tactic, making use of the Bishop finally:
Rg8+ Kxg8
Qe8+ and the pin allows Qxf7+ next move and I think mate.
This one has a lot of variations and dead ends :-/
Anyways this is what I worked out:
Rxf7+
..Kg8 Qg6+ Kh8 Qh7#
..Kh8 Qh7#
..Kxf7 Qg6#
For ..Rxf7 switch to Rg6+ as Qg6+ is a dead end.
..Rxf7 Rg6+ Kh8 Qe8+ Kh7 Qg8#
..Rxf7 Rg6+ Kh7 Rf6+ Rf5 Rxf7+ Kg8 or Kh8 Qe8#
..Rxf7 Rg6+ Kh7 Rf6+ Kh8 Qe8+ Rf8 Qxf8 Kh7 Rf7#
..Rxf7 Rg6+ Kf8 Rg8+ Kxg8 Qe8+ Kg7 Qxf7+ Kh8 Qg8#
1) rf7+, rxf7
2) rg6+, kf8
3) rg8+, kg8
4) qe8+, kh7
5) qxf7+, kh8
6) Qg8#
Re7+ seems to win for all variations?
11Rf7+ Rf7 2Rg6+ Kf8 3 Rg8+ kg8 4Ke8
Rxf7+?
My first thought(Most of the times wrong)was
1.Rg6+ fxg6
2.Qxg6+ Kh8
3.Rxf8#
wonderful but black may not oblige.he may simply play 1…. Kh8 and white is in a fix.Even 1.Qg6+ does not work.So
1.Rxf7+ Rxf7
2.Rg6+
2.Qxg6+ Kf8 and white has no good continuation.
2…. Kf8
3.Rg8+ Kxg8
4.Qe8+ Kh7
5.Qxf7+ Kh8
6.Qg8#
1:Rxg6+ fxg6 2:Qxg6+ Kh8, 3:Rxf7#
Count Qvorthon
This is a tough one. In view of black’s immediate winning threats it would seem that all white’s subsequent moves must be checks. Rg6+ and Qg6+ both win if black acquiesces but what if Kh8 in response to either? So we are left with Rxf7ch but I can’t see a quick way through. Kxf7 loses so black must play Rxf7 when Rg6+ forces Kf8. (Kh8 is met by Qa8+ mating). Then Qa8+, (anything better), and Ke7 but I can’t see something decisive as black not only has imminenet threa5ts but controls all the black squares! Perhaps after Ke7 then Re6ch Kd7 eventually leads to mate?
Rxf7 looks pretty fun.
So after:
1. Rxf7+ Rxf7
2. Rg6+! Kf8
The trick is:
3. Rg8+!!
to drag king back to g8.
Nice.
I missed this since there were so many variations.