Website founded by Milan Velimirović in 2006
16:41 UTC
| |
MatPlus.Net Forum Twomovers Is this a good example of a diagonal-orthogonal pair with the same theme? |
|
|
|
You can only view this page!
| | (1) Posted by Eugene Rosner [Friday, Jan 27, 2012 01:31] | Is this a good example of a diagonal-orthogonal pair with the same theme? theme: key grants the black king flight squares leading to cross-check variations...
Milan R.Vukcevich
2nd Hon. mention
USPB, 1981
(= 11+11 )
#2
1.Qe2 (2.Qg4#)1...Kxf5+/Kf4+ 2.Sf3/Sf6#
Eugene Rosner
2nd Prize
USPB, 1984
(= 8+12 )
#2
1.Qb2 (2.Sh4#) 1...Kf4+/Ke4+ 2.Qe5/Se5# | | (2) Posted by Hartmut Laue [Friday, Jan 27, 2012 17:54]; edited by Hartmut Laue [12-01-27] | Very pleasant couple! In your problem, it is nice to see why 1.Qd4?, 1,Qc3? don't work. No white pawns, elegant.
In a sense, an old-fashioned theme, but if the Ellerman/Mansfield generation did not find these flowers, it is good they still were discovered.
Nice day for presenting these beauties: January 27(=3³) is W. A. Mozart's birthday! (256=2^8 years ago) | | (3) Posted by Jacques Rotenberg [Saturday, Jan 28, 2012 18:50]; edited by Jacques Rotenberg [12-01-28] | Yes a very nice problem Eugene, The "side" variations 1...Be1+ & 1...Bxh2 are pleasing : the battery is much more active than it seems | | (4) Posted by Eugene Rosner [Sunday, Jan 29, 2012 02:44] | glad you saw that! the refutations to the tries 1.Qd4/Qb3? e5/Bf4! lead to selfblock variations in the solution 2.Sd4/Qxb1# | | (5) Posted by Jacques Rotenberg [Sunday, Jan 29, 2012 03:00] | The set play 1...e5 2.Sd4# is important : it gives a role to the Bh1, and then masks a little bit more the key.
An idle Bh1 would give the solver an indication for a flight giving key. | | No more posts |
MatPlus.Net Forum Twomovers Is this a good example of a diagonal-orthogonal pair with the same theme? |
|
|
|