MESON Chess Problem Database

Problem Display
PID: 228842 (4k2r/pK1ppp2/P6p/5N1p/2N1P1P1/1PpRQPrb/2P2PPR/6bn w - - 0 1)

Hannemann, Knud Harald

Chess Amateur (The), 1926

4k2r/pK1ppp2/P6p/5N1p/2N1P1P1/1PpRQPrb/2P2PPR/6bn

#2

14 + 13

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxe7#
        • 2.Qc8#
      • 1...Kd8
        • 2.Qxe7#
        • 2.Qc8#
      • 1...Kf8
        • 2.Qc8#
      • 1...d6
        • 2.Qc8#
      • 1...f6
        • 2.Qxe7#
      • 1...e5
        • 2.Qe7#
        • 2.Qc8#
      • 1...e6
        • 2.Qe7#
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(l);P-FLIGHT,P_SPINP(j)::QAR(G)
      • P(i);::QAR2(G)
      • P(k);::QAR1(G),XP(j)
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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).