MESON Chess Problem Database

Problem Display
PID: 146623 (2K3b1/p5P1/3Bk3/7P/r4rN1/p2Q4/2n2R1q/bB6 w - - 0 1)

Moller, Herbert

Good Companions (February), 1918

2K3b1/p5P1/3Bk3/7P/r4rN1/p2Q4/2n2R1q/bB6

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.Qg6#
    • 1...Rf8+
      • 2.gxf8S#
  • Keys
    • 1.Bb4!
      • threat
        • 2.Qd7#
      • 1...Rc4+
        • 2.Qxc4#
      • 1...Rf8+
        • 2.gxf8S#
      • 1...Kf7
        • 2.Qg6#
        • 2.Qd7#
      • 1...Rxg4
        • 2.Qf5#
      • 1...Bd4
        • 2.Ba2#
      • 1...Sd4
        • 2.Qc4#
      • 1...Rd4
        • 2.Qf5#
      • 1...Rf7
        • 2.Ba2#
        • 2.Qc4#
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(g);P_SPINR(f),S_FLIGHT::QAB1(C)
    • R(f);CHECK,OGATE::PXR(f)=S
  • Actual
    • B(F);
    • Threat
      • QAB1(C)
    • Vars
      • R(f);CHECK,N_GUARD::QAB(C),XR(f)
      • R(f);CHECK,OGATE::PXR(f)=S
      • R(f);N_GUARD,XS(D)::QAB1(C)
      • B(a);S_CUTR(f)::B(A)
      • S(b);S_CUTR(f)::QAB(C)
      • R(f);N_GUARD::QAB1(C)
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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).