MESON Chess Problem Database

Problem Display
PID: 67570 (5kBK/6p1/b2pQ3/2p3p1/3Bn2p/R4rp1/1b1p4/4qr2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1948

5kBK/6p1/b2pQ3/2p3p1/3Bn2p/R4rp1/1b1p4/4qr2

#2

5 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Bxg7#
    • 1...Bc1
      • 2.Bxg7#
    • 1...Bxa3
      • 2.Bxg7#
    • 1...Be2
      • 2.Ra8#
    • 1...Bd3
      • 2.Ra8#
    • 1...Bc4
      • 2.Ra8#
    • 1...Sf2
      • 2.Rxf3#
    • 1...Sc3
      • 2.Bxg7#
    • 1...Sf6
      • 2.Qf7#
  • Tries
    • 1.Bf6?
      • threat
        • 2.Qf7#
        • 2.Qe7#
      • 1...Bxf6
        • 2.Qf7#
      • 1...Sxf6
        • 2.Qf7#
      • 1...gxf6
        • 2.Qf7#
      • 1...Bc4
        • 2.Ra8#
        • 2.Qc8#
        • 2.Qe7#
      • 1...Sf2
        • 2.Qf7#
      • 1...Sc3
        • 2.Bxg7#
        • 2.Qf7#
      • 1...Rxf6!
    • 1.Rxf3+?
      • 1...Sf6
        • 2.Qf7#
      • 1...Rxf3!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qd8#
      • 1...Bb5
        • 2.Ra8#
      • 1...Sf2
        • 2.Rxf3#
      • 1...Sc3
        • 2.Bxg7#
      • 1...Sf6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(e);S_CUTB(c)::B(B),XP(m)
    • B(c);N_GUARD::B(B),XP(m)
    • B(c);N_GUARD,XR(A)::B(B),XP(m)
    • B(k);OGATE::R(A)
    • S(g);N_GUARD,S_CUTR(b)::R(A),XR(e)
    • S(g);S_CUTB(c)::B(B),XP(m)
    • S(g);S_CUTR(e)::QAR1(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XB(B)::QAR1(C)
        • S(g);XB(B)::QAR1(C)
        • P(m);XB(B)::QAR1(C)
        • S(g);::QAR1(C)
      • Refutation
        • R(e);XB(B)
    • Try
      • R(A);CHECK,XR(e)
      • Vars
        • S(g);P_SPINS(g)::QAR1(C)
      • Refutation
        • R(b);XR(A)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • B(k);OGATE::R(A)
      • S(g);N_GUARD,S_CUTR(b)::R(A),XR(e)
      • S(g);S_CUTB(c)::B(B),XP(m)
      • S(g);S_CUTR(e)::QAR1(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).