MESON Chess Problem Database

Problem Display
PID: 132922 (3kb3/3Pp3/1K1R4/8/8/8/8/1Q6 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

3kb3/3Pp3/1K1R4/8/8/8/8/1Q6

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qh1?
      • threat
        • 2.Qa8#
      • 1...e5
        • 2.Qh4#
      • 1...e6
        • 2.Qh4#
      • 1...exd6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qa8#
      • 1...exd6
        • 2.Qxe8#
        • 2.dxe8Q#
      • 1...e5
        • 2.Qh4#
      • 1...e6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • P(a);OGATEB::QAB(A)
      • Refutation
        • P(a);XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • P(a);OGATEB::QAB(A)
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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).