MESON Chess Problem Database

Problem Display
PID: 17778 (8/3pK3/b2p4/3Q3B/qRp2Nn1/r3kNB1/rRp5/n5b1 w - - 0 1)

Lacny, Ludovit

1st Prize, Przepiorka MT, 1949

8/3pK3/b2p4/3Q3B/qRp2Nn1/r3kNB1/rRp5/n5b1

#2

8 + 12

3105 FIDE Album (1945-1955) 1964
102 Probleemblad 1975
3335 Cyclone 2000
145 StrateGems 2007
5454 Near Snap 2013
136 Problem Observer 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qd4#
    • 1...Sh2
      • 2.Qd4#
    • 1...Se5
      • 2.Qd4#
    • 1...Sf6
      • 2.Qd4#
    • 1...Sh6
      • 2.Qd4#
    • 1...c1Q
      • 2.Sg2#
    • 1...c1S
      • 2.Sg2#
    • 1...c1B
      • 2.Sg2#
    • 1...c1R
      • 2.Sg2#
    • 1...c3
      • 2.Qe4#
  • Tries
    • 1.Sh2?
      • threat
        • 2.Sf1#
        • 2.Sxg4#
      • 1...Sxh2
        • 2.Sg2#
      • 1...Rd3
        • 2.Sf1#
      • 1...c1Q
        • 2.Sxg4#
        • 2.Sg2#
      • 1...c1R
        • 2.Sxg4#
        • 2.Sg2#
      • 1...Sf2
        • 2.Sf1#
        • 2.Sg2#
      • 1...Se5
        • 2.Sf1#
        • 2.Sg2#
      • 1...Sf6
        • 2.Sf1#
        • 2.Sg2#
      • 1...Sh6
        • 2.Sf1#
        • 2.Sg2#
      • 1...c3
        • 2.Sxg4#
        • 2.Qd4#
      • 1...Bxh2!
    • 1.Sh4?
      • threat
        • 2.Shg2#
        • 2.Sf5#
      • 1...Sh6
        • 2.Sfg2#
        • 2.Shg2#
      • 1...Rd3!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sf1#
      • 1...c1Q
        • 2.Qe4#
      • 1...c1R
        • 2.Qe4#
      • 1...Sh2
        • 2.Sg2#
      • 1...c3
        • 2.Qd4#

This anticipates 8101(1995)

There are these versions: 137213

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • S(i);::QAB1(F)
    • P(d);::S(E)
    • P(h);::QAR1(F)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(i);XS(B)::S(E)
        • R(e);::S(B)
      • Refutation
        • B(b);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Refutation
        • R(e);
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • P(d);::QAR1(F)
      • S(i);::S(E)
      • P(h);::QAB1(F)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).