MESON Chess Problem Database

Problem Display
PID: 63342 (q6k/1n2P1N1/1p1p1N2/1r3R2/r1p4p/8/6Q1/2n4K w - - 0 1)

Kipping, Cyril Stanley

Chess, 1945

q6k/1n2P1N1/1p1p1N2/1r3R2/r1p4p/8/6Q1/2n4K

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.e8Q#
      • 2.e8R#
    • 1...Qa6
      • 2.e8Q#
      • 2.e8R#
    • 1...Qa7
      • 2.e8Q#
      • 2.e8R#
    • 1...Qf8
      • 2.exf8Q#
      • 2.exf8R#
    • 1...Rb1
      • 2.Rh5#
    • 1...Rb2
      • 2.Rh5#
    • 1...Rb3
      • 2.Rh5#
    • 1...Rb4
      • 2.Rh5#
    • 1...Sc5
      • 2.Rh5#
    • 1...Sd8
      • 2.e8Q#
      • 2.e8R#
    • 1...d5
      • 2.Rh5#
  • Tries
    • 1.Sgh5?
      • threat
        • 2.Qg7#
      • 1...Qf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Qg8
        • 2.Qxg8#
      • 1...Sa5
        • 2.Qxa8#
      • 1...Sd8
        • 2.e8Q#
        • 2.e8R#
      • 1...Sc5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qg7#
      • 1...Qf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Qg8
        • 2.Qxg8#
      • 1...Sa5
        • 2.Qxa8#
      • 1...Sc5
        • 2.Rh5#
      • 1...Sd8
        • 2.e8Q#
        • 2.e8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(i);N_GUARD::P=Q
    • Q(i);OGATE::PXQ(i)=Q
    • R(e);N_GUARD::R(C)
    • S(h);P_PINQ(B),S_CUTR(e)::R(C)
    • S(h);P_PINQ(B),S_CUTQ(i)::P=Q
    • P(g);S_CUTR(e)::R(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(B)
      • Vars
        • Q(i);OGATE::PXQ(i)=Q
        • Q(i);N_GUARD::QAR1(B),XQ(i)
        • S(h);OGATE,P_PINQ(B)::QAB1(B),XQ(i)
        • S(h);P_PINQ(B),S_CUTQ(i)::P=Q
      • Refutation
        • S(h);P_PINQ(B)
  • Actual
    • S(F);
    • Threat
      • QAB1(B)
    • Vars
      • Q(i);OGATE::PXQ(i)=Q
      • Q(i);N_GUARD::QAR1(B),XQ(i)
      • S(h);OGATE,P_PINQ(B)::QAB1(B),XQ(i)
      • S(h);P_PINQ(B),S_CUTR(e)::R(C)
      • S(h);P_PINQ(B),S_CUTQ(i)::P=Q
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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).