Monday, January 25, 2010

Checkmate in 2


White to move and checkmate in 2. No computer line please. How long does it take you to solve it? :)

8/8/N1n1n3/1N1k4/2n1n3/3N4/8/K2N4 w - - 0 1

(This is a chess composition. I forgot the name of the composer. I will list the name as soon as I can find it.)
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24 comments:

Lab said...

Ka2

15 seconds or smth...

Anonymous said...

Ka2! +-. 2 seconds it took

Anonymous said...

waiting move Ka2!

Anonymous said...

Ka2

Jean-Claude Schmidig said...

Ka2! Zugzwang

Marlon said...

Ka2

Anonymous said...

Ka2

Artiom(IM) said...

Well, 1.Ka2 looks interesting and zug

Anonymous said...

The key is a quiet move Ka2 to put black in zugzwang. any knight move leaves black open to checkmate. i.e.
1. Ka2 Ncd4
2. Nab4#

Anonymous said...

About 4-5 seconds ...

1.Ka2! (Z)

Lokendra Kapoor said...

Ka2!!!!!

Damn.....
these waiting moves are so sexy...

Anonymous said...

Bishop g4

Anonymous said...

I think Kh2 and next knight move Black gets mated.

Anonymous said...

1. Ka2 zugzwang.

Anonymous said...

Ka2

Pitor said...

1. Ka2

Approx. 35 secs

rgorn said...

Ka2, then black has to play a knight, and White has a mate on every move -- if I didn't miss something.

Anonymous said...

No bishop here. I have no idea though. Not much worry about computer as most will sayu invalid position.

One Brow said...

1. Ka2, zugzwang
The Black King can not move.
1. ..., Nc4 moves, N(d)e3++
1. ..., Ne4 moves, N(d)c3++
1. ..., Nc6 moves, N(a)b4++
1. ..., Ne6 moves, N(a)c7++

Anonymous said...

Yes, Ka2 is it. I did not think instantly but did see no N move could win.? Well 1200 players just have little pattern sense.

Jochen said...

"Not much worry about computer as most will sayu invalid position."

What computers are you using? Don't they now promotion? This position is regular. Else it wouldn't be published as chess problem.

But who cares about computers this time? I think I solved this quicker than anybody can set up the material. ;)

Nice one, though it is not hard to solve as soon as you see that no knight must move (which is a see at once) leaving only 3 king moves.

Jochen

PS: Sorry, I do not know the author either.

Impractical said...

Ka2 5 seconds

Anonymous said...

1. Ka2
4 seconds, 5 weeks, 23 hours and 1 decennium

Anonymous said...

ka2 - negras mueven cualquier caballo y blancas dan mate con caballo