Analysis: White to move. Material advantage to Black, and a dangerous attack via Rb1+ coming. So whatever the solution, it must be forcing.
The obvious candidate that jumps out is Nh5+. Now it’s a question of closing the net around the king. Black has two possible responses, Kh7 and Kg6. (Note: 1…Qxf5 2.Qxf5 Rb1+ 3.Kf2 and the White King can escape)
1.Nh5+ Kg6
2.Rg8+ Kxh5
3.Qe2+ Rf3
4.Qxf3+ g4
5.Nf6+ Qxf6
6.Qxg4#
And if,
3…g4
4.Qxg4 QxQ
[0r 4.Nf6+ 5.Kh4 6.Rxg4 QxR 7.QxQ ++
5.Nf6+ Kh4
6.RxQ ++
Nf5+ looks like an easier win.
Mark
Analysis: White to move. Material advantage to Black, and a dangerous attack via Rb1+ coming. So whatever the solution, it must be forcing.
The obvious candidate that jumps out is Nh5+. Now it’s a question of closing the net around the king. Black has two possible responses, Kh7 and Kg6. (Note: 1…Qxf5 2.Qxf5 Rb1+ 3.Kf2 and the White King can escape)
1.Nh5+ Kh7 2.Nf6+ Kg6 (2…Qxf6 3.Qxf6#) 3.Rg8#
1.Nh5+ Kg6 2.Rg8+ Kxh5 3.Qe2+ Kh4 (3…Rf3 4.Qxf3+ continues the same) 4.g3+ Kh3 5.Nf2#
Fun one. The mating chase down the h-file is interesting.
(jhiant)
ah, missed the 4…g4 block in my variations. Not much of a problem though with the Rook on g8. First poster has this one. (4…g4 5.Nf6+ Qxf6 6.Qxg4#)
(jhiant)
Re: Nf5+ looks like an easier win. Mark
1.Nf5+ Kg6 2.Rg8+ Kh7 3. Rg7+ Kh8…and then what?
Consider Black is threatening to win the Queen via the mate threat on Rb1+ .
(jhiant)
I didn’t see all lines . First move I got. Though I first tried 1. Nf6 but it’s not forcing and it allows Black a deadly counter attack of its own
1 Nh5+ Kg6
2 Rg8+ Kxh5
3 Qe2+ g4
4 Qxg4+ Qxg4
5 Nf6+ Kh4
6 Rxg4+ isn’t mate as 6 … Kh3
1 Nh5+ Kg6
2 Rg8+ Kxh5
3 Qe2+ g4
4 Nf6+ Kh4 (4 … Qxf6 5 Qxg4#)
5 Rxh4+ Kh3 (5 … Qxg4 5 Qxg4#)
6 Qg2 #
Steve from Argentine