MESON Chess Problem Database

Problem Display
PID: 63086 (8/3B4/Q2B4/p7/r5P1/1b1p2Pk/rn5N/b2n2K1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1944

8/3B4/Q2B4/p7/r5P1/1b1p2Pk/rn5N/b2n2K1

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4
      • 2.Bxg4#
    • 1...Sc4
      • 2.g5#
    • 1...d2
      • 2.Qf1#
  • Tries
    • 1.g5+?
      • 1...Rg4
        • 2.Bxg4#
      • 1...Be6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qg2#
        • 2.Qh8#
      • 1...Rf4
        • 2.Qg2#
      • 1...Re4
        • 2.Qh8#
      • 1...Bd5
        • 2.Qh8#
      • 1...Bf7
        • 2.Qg2#
      • 1...Bg8
        • 2.Qg2#
      • 1...Se3
        • 2.Qh8#
      • 1...Sc4
        • 2.g5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(h);OGATE,P_PINP(C),P_SPINR(h),XP(D)::B(G),XR(h)
    • S(d);S_CUTB(e),S_CUTR(h)::B(G)+P(D)
    • P(f);OGATE::QAB(E)
  • Tries
    • Try
      • P(D);CHECK
      • Vars
        • R(h);N_GUARD,P_PINP(C),P_SPINR(h)::B(G),XR(h)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • Q(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(h);::QAB1(E)
      • R(h);::QAR(E)
      • B(e);::QAR(E)
      • B(e);::QAB1(E)
      • S(b);::QAR(E)
      • S(d);S_CUTB(e),S_CUTR(h)::B(G)+P(D)
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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).