MESON Chess Problem Database

Problem Display
PID: 39588 (8/4p2p/4Q3/5NkP/5p2/5K2/8/8 w - - 0 1)

Lindner, Laszlo

Pesti Naplo, 1933

8/4p2p/4Q3/5NkP/5p2/5K2/8/8

#2

4 + 4

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh5
      • 2.Qh6#
    • 1...h6
      • 2.Qg6#
  • Tries
    • 1.Sg3?
      • 1...Kh4
        • 2.Qg4#
      • 1...h6
        • 2.Qxe7#
      • 1...fxg3!
    • 1.Sh6?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kxh5!
  • Keys
    • 1.Sg7!
      • 1...Kh4
        • 2.Qg4#
      • 1...h6
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT,XP(C)::QAR1(D)
    • P(d);N_GUARD::QAR1(D)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
        • P(d);SBLOCK::QAB(D),XP(c)
      • Refutation
        • P(a);XS(B)
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT::QAR1(D)
      • P(d);SBLOCK::QAB(D),XP(c)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).