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Given that black is poised to deliver a checkmate by e2#, this puzzle boils down to finding a sequence of checks that neutralize that threat and wins the game for white. After some staring at the position, I could see such a sequence of moves easily.
1. Rg4+ Rg6 (1… Kh6 2. Qf4+ Kxh5 3. Rf5+ Qg5 4. Qxg5#)
2. h6+ Kxh6
3. Rxg6+ hxg6
This maneuver was the tricky part. White cannot play Rxg6+ at his second move as then there is no attack after hxg6. The text move “places” the black king and pawn in their ideal squares for white to deliver the killer blow – which is:
4. Qh4+!!
Ouch. Now what?
4… Kg5 5. Qh4#
4… Kg7 5. Qh8#
Black is lost.
This is actually a mate-in-6 puzzle, since there is a delaying move available to black:
4… Qh4
5. Qxh4+ Kg7
6. Qh8#
1. Rg4+, Rg6 ( .., Kh6 2. Qg5# or .., Qg5 2. Rxg5, Kh6 3. Rf6+, Rxf6 4. Qxf6#)
2. h6+, Kxh6
3. Rxg6+, hxg6
4. Qh3+, Kg5 (Kg7 loses to Qh8#)
4. Qh4#
Rg4+
Since Black threatens mate by e2#, White has to give checks with every move. So
1. Rg4+ Rg6
1. … Kh6
2. Qg3+ Kxh5 (Qg5 3.Qxg5#)
3. Rf5+ Qg5
4. Qxg5#
2. h6+! Kxh6
3. Rxg6+ hxg6
4. Qh3+ Kg7
4. … Kg5 5. Qh4#
4. … Qh4 5. Qxh4+ Kg7 6. Qh8#
5. Qh8#
1Rg4+ rg6 2h6+ kxp 3Rxr pxr 4Qh3 wins
Hi Susan Polgar,
Well,its a simple puzzle.
White wins the game in ease.
Example One
===========
1.Rg4+ Kh6
2.Qf4+ Qg5
3.Q*Qg5++ Mate
Example Two
===========
1.Rg4+ Qg5
2.R*Qg5+ Kh6
3.Qf4 Rg6
4.R*Rg6+ K*h5
5.Qg5++ Mate
White wins the game in ease.
By
Venky [ India – Chennai ]
Harder than it looks: 1. Rg4+ Kh6 2. Qf4+ and black is in serious trouble.
Wow, this was a complicated one!
I looked for a looong tima at moves that don’t work.
Wishing to open the h-file, I tried 1. h6+, this simply fails to Rxh6.
This improvement seems to work, though:
1. Rg4+ Rg6 (alternative below)
2. h6+! Kxh6 (only)
3. Rxg6+ hxg6 (only)
4. Qh3+! Qh4 (delay)
5. Qxh4 Kg5 (Kg7 Qh8#)
6. Qh4#
litterally killed by his own pawn!
or:
1. … Kh6
2. Qf4+! Kxh5 (enforced)
3. Rh4+ Kg6 (alternative below)
4. Rg8+ Qg7 (only)
5. Rxg7+ Kxg7
6. Qxe3!
nicely up with material.
or:
3. … Qxh4
4. Qxh4+ Kg6
5. Qe4+ -> Qxe3
Correction in my earlier post – the killer blow is actually 4. Qh3+!!