White to move. How should white proceed?
r4r2/1p1nRNkp/2p3p1/2P5/2Q5/p5P1/3q1P1P/6K1 w – – 0 1
Chess Daily News from Susan Polgar
Special chess tactic
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White to move. How should white proceed?
r4r2/1p1nRNkp/2p3p1/2P5/2Q5/p5P1/3q1P1P/6K1 w – – 0 1
1. Ng5+ Kf6
2. Nh7+ Kf5
3. Qe4++
if
1. … Kh8
2. Rxh7++
if
1. … Kh6
2. Qh4++
it must be
1. Ne5+ Kh8 (Kh6, 2. Qh4#)
2. Nxg6+ hxg6
3. Qh4+ Qh6
4. Qxh6+ Kg8
5. Qg7#
1. … Rf7
2. Qxf7+ Kh6 (Kh8, 2. Qh7#)
3. Qxh7+ Kg5
4. Qxg6#
greets, jan
1. Ng5+ winning instantly.
It is clear that White must give a discovery-check, but where should the knight go?
1. Ne5+! Kf6
Other moves:
1. … Kh6 2. Qh4#
1. … Kh8
2. Nxg6+! This is one reason why e5 is a good square for the knight.
2. … hxg6
3. Qh4+ Qh6
4. Qxh6+ Kg8
5. Qh7#
2. Qe6+ Kg5
3. h4+ Kh6
3. … Kh5
4. Rxh7+ Qh6
5. Qg4# and again e5 proves to be a good square for the knight.
4. Ng4+ Kh4
5. Rxh7+ Qh6
6. Rxh6#
Hi Susan Polgar,
Ref : r4r2/1p1nRNkp/2p3p1/2P5/2Q5/p5P1/3q1P1P/6K1 w – – 0 1
Well,I am surprised to see,this easiest puzzle title as “Special chess tactic” or am I,failed to see some complexity in this puzzle ? If the piece positions are as given above,then this puzzle is not for this best chess site.
Susan,One of the best thing of this(Your)blog/site is,interesting chess puzzles.
so please see that complex,easily unresolvable puzzles by Humans,are placed at this site,to have sustained interest to solve the puzzles,in past it was so and I hope in future too it will be so,at this site.
By the by White wins the game.
Simple example one
==================
1.Ng5+ Kh8
2.Rh7++ Mate
Simple example two
==================
1.Ng5+ Kh6
2.Qh4++ Mate
By
Venky [ India – Chennai ]
It looks like the revealed check starting out with 1. Ng5+ works. It stops 1…Kf6 because of 2. Ne4+ winning the queen. And if 1…Kh6 then 2. Qh4+ leads to mate. And on 1…Kh8 2. Rh7 mates.
Ne5+
Nxg6+
Qh4+
Qh7#
1. Ng5+ Kf6
2. Nh7+ Kf5
3. Qe4++
if
1. … Kh8
2. Rxh7++
if
1. … Kh6
2. Qh4++
I did not solve it. It is a lot harder than you think and some folks will have to eat their hat!!
I spent a lot of time trying to get 1.Ng5+ to work but somehow black gets away.
ex:
1.Ng5+ Kf6
And white has nothing better than a perpetual since
2.Qe6+ KxN 3.f4+ RxP 4.PxR QxP 5. RxN Qg4+ and the black’s a pawn will queen. Or 2.Ne4+ KxR
3.NxQ a2 4.Nb3 a1(Q) 4.NxQ RxN+ and black is winning.
2.Re6+ KxN
3.Qh4+ Kf5
4.Qe4+ etc cetera with a perpetual
So the other two tries for white are 1.Nh6+ & 1.Ne5+. The first alternative doesn’t really work after black plays 1….Kh8, so that leaves 1.Ne5+
1.Ne5+ Kf6
( the point is that 1…Kh8 2.Nxg6+! PxN 3.Qh4+ Kg8 4.Qh7 mate)
2.Qe6+ Kg5
3.h4+ Kh6 (3…Kh5 4.Rxh7#)
4.Ng4+ Kh5
5.Rxh7#
1. Ne5+ Kh8 (1… Kh6 2. Qh4#) (1… Rf7 2. Qxf7+ Kh6 3. Qxh7+ Kg5 4. Qxg6#) 2.
Nxg6+ hxg6 3. Qh4+ Kg8 4. Qh7# *
For the Ng5 folks:
1. Ng5 Kf6! Probably draws since
2. Ne4? Ke7
3. Nd2 a2 leaves black with a decisive material edge. White draws with
2. Re6! Kg5
3. Qh4 Kf5 with, at best, a perpetual draw for white.
This might not be quite as obvious as it looks like:
1. Ng5+ Kf6! (Kh8 Rxh7#, Kh6 Qh4#)
2. Ne4+? Kxe7
3. Nxd2
takes queen, but black is still better, up with a pawn, sad but true.
So white must find something better than this!
I had to go through all the knight moves to find the right one:
1. Ne5! Kf6 (alternatives below)
2. Qe6 Kg5
3. h4 Kh6 (Kh5 4.Rh7 Qh6 5.Qg4#)
4. Ng4 Kh5
5. Rh7 Qh6
6. Rh6#
At move 1, black is mated more quickly with
1. …..Kh8
2. Ng6 hg6
3. Qh4 with mate in 2 more moves max.
Or, more trivially, at move 1:
1. …..Rf7 (Kh6 2.Qh4#)
2. Qf7! Kh6 (Kh8 3.Qg7#)
3. Qh7 Kg5
4. Qg6#
With 2 seconds on my clock, I would play 1. Ng5+, but it drops the knight and the win: 1. … Kf6 2. Re6+ (2. Qe6+ Kxg5 3. f4+ [3. h4+ Kh6 and White is cooked] Rxf4 4. gxf4 Qxf4 5. Qxd7 and White is just lost. Also, 2. Ne4+ looks nice, but 2. … Kxe7 3. Nxd2 and the a-pawn decides it.) Kxg5 3. Qh4+ Kf5 4. Qe4 Kg5 5. Qh4 and draw.
Instead, 1. Ne5+ preserves the knight and the win: 1. … Kf6 (1. … Kh8 2. Nxg6+ hxg6 3. Qh4+ and wins) 2. Qe6 Kg5 3. h4 Kh6 4. Ng4 Kh5 5. Rxh7+ and wins.
What about:
1. Ng5+ Kf6
2. Qe6+ Kxg5
3. f4+ Qxf4 (Kh5/h6 Qh3#)
4. gxf4+ Kxf4
5. Qe4+ Kg5
6. h4+ Kh6
7. Qf4+ Kh5 (g5 Qxg5#)
8. Rxh7#
After
1. Ne5+ there are three king moves and one rook move possible.
1. … Kh6 leads to mate in one.
After 1. … Kh8 2. Nxg6+ white will mate in three.
The last king move leads to 1. … Kf6 2. Qe6+ Kg5 3. h4+
where
3. Kh5 leads to mate in 1 and
3. Kh6 leads to mate in 2.
Finally
1. … Rf7 2. Qxf7+
after which
2. … Kh8 is mated in one
and
2. … Kh6 is mated in two
Rob
Lenya Gristmilli grinds out another one.
1. Ne5+ Kf6 2. Qe6+ Kg5 3. h4+ Kh6 [3. … Kh5 4. Rxh7+ Qh6 5. Qg4#] 4. Ng4+ Kh5 5. Rxh7+ Qh6 6. Rxh6#
Grusome!
1. Ne5+ Kh8 2. Nxg6+ hxg6 3. Qh4+ Kg8 4. Qh7#
1. Ne5+ Kh6 2. Qh4#
1. Ne5+ Rf7 2. Qxf7+ Kh6 3. Qxh7+ Kg5 4. Qxg6#
Dear Cesar,
You are SO right. The sight of all that hat munching is going to be so GRATING and GRUSOME. Very ironic.
Lenya Gristmilli
Dear Ed Trice,
1. Ng5+ Kf6 2. Ne4+ Kxe7 3. Nxd2 a2 4. Nb3 a1=Q+ 5. Nxa1 Rxa1+
actually loses for White. The clever
person who composed this problem must have been grinning about that.
Lenya Gristmilli
1.Nh6R+…(1…Kxh6 2.Qh4#) 1…Kf6 2.Ng8+!…
a) 2…Kg5 3.Qh4+ Kf5 4.Nh6#
b) 2…Kf5 3.Qe6+ Kg5 4.h4+ Kh5 5.Rxh7#
c) 2…Rxg8 3.Rf7+…(3… Kg5 4.Qh4#) 3…Kd5 4.f5+ Qxf5 5.gxf5#
Dear “Mate in 5″…
What about an answer 1..Kh8? Did You check it as well?
Dear pht
3. …Rxf4 and later on 7. …Rxf4
Dear “Mate in 5” with the try 1. Nh6+, White loses after Black’s reply 1. … Kh8
Grindmaster Lenya Gristmilli
these comments made me realise that, sending in a solution earlier, i neglected one possible line:
1. Ne5+ Kf6
2. Qe6+ Kg5
3. h4+ Kh6
4. Ng4+ Kh5
5. Rxh7+ Qh6
6. Rxh6#
or 3. … Kh5
4. Rxh7+ Qh6
5. Qe2+ Rf3
6. Qxf3#
greets, jan
Can’t beleive ‘Fritz’ didn’t get 2…Kh8 / 🙂
1.Ne5+…
a)1…Kh8 2.Nxg6+ hxg6 3.Qh4+ Kg8 4.Qh7#
b)1…Kf6 2.Qe6+ Kg5 3.h4+…(3…Kh5 4.Rxh7#) 3…Kh6 4.Ng4+ Kh5 5.Rxh7#
It’s still mate in 5.
Best regards !
Hi Susan Polgar,
Wow Wow Wow – Very healthy discussion – fine.
Well,Initial “Ng5+” has other combination which hadn’t discussed here as of now but still there is a loop hole for Black to evade matting by White,in this initial move of White.
So now after taking considerable time,I think I have come out with transfix move for white’s win.
Example
=======
1.Qe6 a2/Nc5
2.Ng5+ Kh6
3.R*h7+ K*Ng5
4.h4++ Mate.
White wins the game.
By
Venky [ India – Chennai ]