MESON Chess Problem Database

Problem Display
PID: 27788 (4K1Q1/8/8/p1pR4/Pkb5/pBn5/P7/8 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

4K1Q1/8/8/p1pR4/Pkb5/pBn5/P7/8

#2

6 + 6

SOLUTION

  • SOUND
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Sxa2
        • 2.Qxc4#
      • 1...Sxa4
        • 2.Qxc4#
      • 1...cxd4
        • 2.Qxc4#
        • 2.Qf8#
      • 1...Sd5
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(D);P_PINB(d)
    • Threat
      • DUALS(2)
    • Vars
      • S(b);XP(A)::QAR1(F),XB(d)
      • S(b);XP(C)::QAR1(F),XB(d)
      • S(b);::R1(D),XB(d)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).