White to move. How should White proceed?
1kb2b1r/pp4r1/1P2n3/RNN4q/4p1p1/3pPpP1/5P2/R1Q3K1 w – – 0 1
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1. Nd7+! Bxd7
1. … Ka8 2. Qxc8#
1. … Rxd7 2. bxa7+ Ka8 3. Qxc8#
2. Qc7+! Nxc7
2. … Ka8 3. Rxa7#
3. bxa7+ Kc8
3. … Ka8 4. Nxc7#
4. a8=Q+ Nxa8 5. Rxa8#
1. Nd7! Bd7 (1…Rd7 2 ba7 Ka8
3 Qc8#) 2 Qc7!! Nc7 3 ba7 Kc8
(3…Ka8 Nc7#) 4 a8=Q Na8 5 Rc8#
-Justin Daniel
1. Nd7+ Bd7
2. Qc7+ Nc7
3. Pc7+ Ka8
4. Ra7#
Isidoro
1nd6
2pxp
3qc8
4nc7
Na6+ and white wins
1nd7+bd72qc7nxq3pxp+kc84a8=qmate
1nd7+rxn2pxp+kr13qxbmate
what a weird position! of course, there´s a checkmate:
1. Na6+ bxa6
2. bxa7+ Kb7
3. a8Q+ Kxa8
4. Qxc8#
or 3. … Kb6
4. Qcc6#
If Ka8 on move 1 or 2, Qxc8# follows as well. greets, jan
Hello
1. Nd7+ , Bxd7
2. bxa7+, Ka8
3, Nc7+ , Nxc7
4. Rxh5 , Rxh5
5. Qxc7 winning
Greetings from Spain
1. Nd7, Bxd7
2. Qc7, Nxc7
3. Bxa7, Kc8
4. A8 for Q, Na8
5. Rxa8,
I almost missed that Qc7 move!
1nd7+ bxn 2qc7+ nxq 3pxp+ kc84 a8=q+
nxq 5rxn mate
1. Nd7+ Rxd7
2. bxa7+ Ka8 (forced)
3. Qxc8 mate
1. Nd7+ Bxd7
2. Qc7+!! Nxc7 (if Ka8 Rxa7 mate)
3. bxa7+ Ka8
4. Nxc7 mate
1. Nd7+ Bxd7
2. Qc7+ Nxc7
3. bxa7+ Kc8
4. Ra8+ Nxa8
5. Rxa8 mate
if incorrectly:
1. Na6+ bxa6
2. bxa7+ Rxa7
and soon 0-1
I thought Na6+ too, but the rook on g7 is preventing any mate (2…Rxa7 for example)
1 Na6 ba; 2 ba Ra7.
Better 1 Nd7 Bd7; 2 Qc7 Nc7;
3 ba Kc8; 4 a8=Q and wins.
Don’t overlook the rook on g7 protecting a7.
I like 1. Nd7+.
if 1..Ka8, then 2. Qxc8#.
if 1.. Rxd7 then 2.cxa7+ Ka8 3.Qxc8#.
if 1..Bxd7 then 2.Qc7+
if 2..Ka8 then Rxa7#.
if 2..Nxc7 then 3.bxa7+
if 3..Ka8 then 4.Nxc7#.
if 3..Kc8 then 4.a8Q+ 5.Nxa8 6.Rxa8#.
Black’s king is mated by:
1. Nd7+ Bxd7
2. Qc7+ Nxc7 (a)
3. bxc7+ Ka8
4. Rxa7+ mate
if 2……..Ka8
3. Rxa7+ mate is even faster
In my post, I recommended the move Nd7+ that leads to mate. I stand corrected. Black has Rxd7 and there’s no mate. White has to play 1.Na6 then that leads to mate.
There are only three first moves possible for white due to the mate in one that hangs over her head- the black king must be checked with either Nd7, Na6, or ba7. I will take them in reverse order this time since I can already see that the last two don’t work and a couple of commenter have already posted wrong Na6 moves:
1. ba7 Ka8
2. Nc7 Nc7 and it it is over as white has no checks left and Qh1 is unstoppable.
Or
1. Na6 ba6 (Ka8 2.Qc8#)
2. ba7 Ra7 (Kb7 2.a8(Q)Ka8 3.Qc8#)
3. Qc8 Kc8
4. Na7 Kb7 (best I see)
5. Rh7 Rh5 and white will be down two pieces since even his knight can’t escape now. At move 3 in this line, Qc7+ is even worse since it is mate in 2 for black.
This leaves only Nd7 by process of elimination.
1. Nd7 Bd7 (Ka8 2.Qc8#; Rd7 below)
2. Qc7! Nc7 (Ka8 3.Ra7#)
3. ba7! Kc8 (Ka8 4.Nc7#)
4. a8(Q)Na8
5. Ra8#
At move 1 above, black does worse with
1. …..Rd7
2. ba7 Ka8
3. Qc8#
Anon 5:36:oo wrote:
“what a weird position! of course, there´s a checkmate:
1. Na6+ bxa6
2. bxa7+ Kb7…..”
——————————
But black can play 2.-Rxa7 and white loses!
No it’s 1.Nd7+ Bxd7 2. Qc7+!! and the rest you can see yourself.
Nd7+
if Rxd7 then
bxa7+ Ka8
Qxc8 mate
if Bxd7 then
Qc7+ Nxc7
bxa7+
then if Ka8
Nxc7 mate
while if Kc8
a8= r or Q+ Nxa8
Rxa8 mate
After Na6+, bxa6, bxa7, Rxa7, white can’t win. The win is with Nd7+.
how about Nd7+
what are blacks options
If
1) Nd7+, Ka8
2) Ra7++
If
1) Nd7+, Rxd7
2) bxa7+, Ka8 (forced)
3) Qxc8++
If
1) Nd7+, Bxd7
2) Qc7+, Nxc7 (Ka8 loses to Rxa7++)
3) bxa7+, Kc8 (Ka8 loses to Nxc7++)
4) a8=Q+, Nxa8
5) Rxa8++