MESON Chess Problem Database

Problem Display
PID: 263154 (1n2k3/3N4/4Kn2/8/8/8/8/4Q3 w - - 0 1)

Nagovitsin, Eduard Nikolaevich

SuperProblem, 2021

1n2k3/3N4/4Kn2/8/8/8/8/4Q3

#2

3 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qe7#
        • 2.Qf8#
        • 2.Qxb8#
      • 1...Kd8
        • 2.Qxb8#
      • 1...Sfxd7
        • 2.Qe7#
      • 1...Sbxd7
        • 2.Qe7#
      • 1...Sd5
        • 2.Qf8#
        • 2.Qxb8#
      • 1...Sh7
        • 2.Qe7#
        • 2.Qxb8#
      • 1...Sg8
        • 2.Qf8#
        • 2.Qxb8#
      • 1...Sa6
        • 2.Qe7#
        • 2.Qf8#
      • 1...Sc6
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • K(c);P-FLIGHT::QAR2(A),XS(b)
      • S(a);XS(C)::QAR1(A)
      • S(b);XS(C)::QAR1(A)
      • S(b);::QAR1(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).