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1. Rxg7
Possible responses:
1. … Rxg7
2. Qxa8 {decisive advantage for white}
1. … Kh8
2. Rxg8 Qxg8
3. exf6 {white eventually will queen one of his pawns gaining a decisive advantage}
1. … Kxg7
2. exf6+ Kh8
3. fxe7+ kh7
4. Qxa8 Rxa8
5. f6 b3
6. f7 b2
7. f8=Q Rxf8
8. exf8=Q b1=Q
9. Qg7#
Rxg7+ wins the queen for rook (KxR will lead to mate from queen/bishop and pawn after a series of checks – so RxR forced resulting in the loss of queen).
1. Rxg7+! Kxg7
( 1…….Rxg7 2. Qxa8 +- )
( 1…….Kh8
2. Qxa8 Rxa8
3. Rxe7 +- )
2. exf6+ Kh8
( 2……Bxf6
3. Qe7+ Kh8
4. Bxf6+ Rg7
5. Qxg7# )
3. f7+! Kh7
4. fxg8+ Qxg8
5. Qxe7 mates
1-0
1.Rxg7+ Rxg7
(1…Kxg7 2.exf6+ Bxf6
(2…Kf7 3.Qxe7#)
(2…Kh7 3.Qxe7+ Kh8 4.f7+ Rg7 5.f8=Q+ Qxf8 6.Qxf8+ Kh7 7.Qxg7#)
(2…Kh8 3.f7+ Kh7 4.fxg8=Q+ Qxg8 5.Qxe7+)
3.Qe7+ Kh8 4.Bxf6+ Rg7 5.Qxg7#)
(1…Kh8 2.Qxa8 Rxa8 3.Rxe7 fxe5 4.Rxe5)
2.Qxa8 fxe5 3.Bxe5 b3 4.Bxg7 Kxg7 5.Qb7 Kf6 6.Qxb3 Bd6+
i think the right moves would be:
1. Rxg7+ Kxg7 (Rxg7, 2. Qxa8+)
2. exf6+ Bxf6 (Kf7/f8, 3. Qe7#)
3. Qe7+ Kh8
4. Bxf6+ Rg7
5. Qxg7#
2. … Kh7
3. Qxe7+ Kh8
4. f7+ Rg7 (Kh7, 5. f8N#)
5. Bxg7+ Kh7 (Kxg7, 6. f8Q#)
6. f8Q
2. … Kh8
3. fxe7+ Kh7 (Rg7, 4. Qxa8)
4. f6+ Kh8
5. f7+ Rg7
6. Bxg7+ Kxg7
7. Qg6+ Kh8
8. f8Q+ Qxf8
9. exf8Q#
greets, jan
1.Qf4, Threatening Pxf6. When the g7 pawn is dispaced, Qh6+ Mate.
1.Rxg7 Kxg7
2.exf6+ Bxf6
3.Qe7+ Kh8
4.Bxf6+ Rg7
5.Qxg7 #
2…Kh8 3.f7+ (3.fxe7+ Kh7) Kh7 4.fxg8:Q+ Qxg8 5.Qxe7+ or f6+
1. Rxg7+! Kxg7 (Rxg7 Qxa8 may be the longest lasting alternative)
2. exf6+ Bxf6 (better alternative below)
3. Qe7+! Kh8
4. Bxf6+ Rg7
5. Qxg7#
2. … Kh8
3. f7+ Rg7 (Kh7 fxg8=Q was worse)
4. Bxg7+ Kxg7 (4. … Kh7 5. Qxe7 … 6. f8=Q is also mate in 8)
5. Qxe7 Qf8 (otherwise f8=Q#)
6. f6+! Kh7
7. Qxf8 any
8. Qg8#/Qh8#
To Vishnu Vardhan Reddy:
I was also looking at the same idea as you, but the problem with it is something like:
1. Qf4/Qe3 Qf8!
2. exf6 gxf6
Now h6 is nicely protected, and so is f6, and black may plan
3. … Rxg6
4. fxg6+/hxg6+ Kg7
and black is better.