MatPlus.Net

 Website founded by
Milan Velimirović
in 2006

23:59 CET
 
  Forum*
 
 
 
 

Username:

Password:

Remember me

 
Forgot your
password?
Click here!
SIGN IN
to create your account if you don't already have one.
CHESS
SOLVING

Tournaments
Rating lists
01-Oct-2019

B P C F





 
 
MatPlus.Net Forum Twomovers "Any" move by X mates in 2, but there is no "any" move
 
You can only view this page!
(1) Posted by Siegfried Hornecker [Monday, Jul 25, 2011 20:11]; edited by Siegfried Hornecker [11-07-25]

"Any" move by X mates in 2, but there is no "any" move


Does such a problem already exist? No idea how to better describe it.

(= 5+3 )

SH, Schema (original)
#2

1.S~ a3 2.Qe6 mate
but 1.Sc2? 1.Sd3? 1.Sf3? 1.Sg2? obstruct lines, for example 1.Sc2? b1S!

1.Qe6+ Ka3 2.Se6 mate


Since this is a schema, I did not delve deep into it and thus made no artistic solution.


In the ideal case, of course, each try should one one refutation that has a different motivation.
 
(Read Only)pid=7100
(2) Posted by seetharaman kalyan [Monday, Jul 25, 2011 21:01]; edited by seetharaman kalyan [11-07-25]

I remember seeing a twomover showing random and correction moves by a knight. A random move by the knight has a mate provided , but each of the eight moves correct it, so the mate after Random move never takes place! This is something similar to your idea. How about calling it the "Invisible random move"? :)
 
 
(Read Only)pid=7103
(3) Posted by Michael McDowell [Monday, Jul 25, 2011 22:49]

It reminds me of the position by Tolosa, where lifting the king mates, but he must arrive somewhere!

(= 6+1 )

 
   
(Read Only)pid=7104
(4) Posted by Geoff Foster [Tuesday, Jul 26, 2011 00:48]

This might be the problem that seetharaman mentioned.

J.M.Rice, Stella Polaris, 1968
(= 13+7 )
#2

1.Qe1! (2.Qxe5)
1...S~ 2.Qxh4
1...Sg4 2.Qe4
1...Sxf3 2.Sxf3
1...Sd3 2.c3
1...Sxc4 2.Sb3
1...Sc6+ 2.dxc6
1...Sxd7 2.Rxd7
1...Sf7+ 2.Rxf7
1...Sxg6 2.Rxg6

A black knight wheel with 9 mates!
 
   
(Read Only)pid=7105
(5) Posted by seetharaman kalyan [Tuesday, Jul 26, 2011 09:02]

Yes. Thanks!
 
 
(Read Only)pid=7107

No more posts


MatPlus.Net Forum Twomovers "Any" move by X mates in 2, but there is no "any" move