MESON Chess Problem Database

Problem Display
PID: 225565 (2R2b2/pBpkqPRb/K1p5/1nppP2Q/4N3/8/8/8 w - - 0 1)

Kratochvil, Karel

Praca, 1958

2R2b2/pBpkqPRb/K1p5/1nppP2Q/4N3/8/8/8

#2

8 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe8
      • 2.fxe8Q#
    • 1...Sd6
      • 2.Sxc5#
  • Keys
    • 1.Re8!
      • threat
        • 2.Bc8#
      • 1...Ke6
        • 2.Sxc5#
        • 2.Bc8#
      • 1...Qxf7
        • 2.Sf6#
      • 1...Qxe8
        • 2.fxe8Q#
      • 1...Qd8
        • 2.e6#
      • 1...Sd6
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(h);OGATE::PXQ(h)=Q
    • S(a);S_CUTQ(h)::S(A),XP(b)
  • Actual
    • R(H);
    • Threat
      • B(E)
    • Vars
      • Q(h);N_GUARD,P_SPINQ(h),XP(F)::S(A)
      • Q(h);OGATE,XR(H)::PXQ(h)=Q
      • Q(h);N_GUARD::P(B)
      • S(a);S_CUTQ(h)::S(A),XP(b)
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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).