MESON Chess Problem Database

Problem Display
PID: 72217 (3BB3/7p/4N2k/5p2/3r1qp1/5p2/b2rR3/2Q1n2K w - - 0 1)

Kipping, Cyril Stanley

Chess, 1953

3BB3/7p/4N2k/5p2/3r1qp1/5p2/b2rR3/2Q1n2K

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2+
      • 2.Rxh2#
    • 1...Qg3
      • 2.Bg5#
    • 1...Qe5
      • 2.Bg5#
    • 1...Qg5
      • 2.Bxg5#
    • 1...Qd6
      • 2.Bg5#
    • 1...Qc7
      • 2.Bg5#
    • 1...Qb8
      • 2.Bg5#
    • 1...Qe4
      • 2.Bg5#
      • 2.Rh2#
    • 1...Rd1
      • 2.Rh2#
    • 1...R2d3
      • 2.Rh2#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qg7#
      • 1...Qh2+
        • 2.Qxh2#
      • 1...Qxc7
        • 2.Bg5#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...Rd7
        • 2.Qxf4#
      • 1...Qe5
        • 2.Bg5#
      • 1...Qg5
        • 2.Bxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(f);CHECK,N_GUARD,P_SPINR(c)::R(C),XQ(f)
    • Q(f);N_GUARD,P_SPINR(c)::B(E)
    • Q(f);N_GUARD::B(E),XQ(f)
    • R(c);N_GUARD,P_SPINQ(f)::R(C)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • Q(f);CHECK,OGATE::QAR(A),XQ(f)
      • Q(f);N_GUARD,XQ(A)::B(E)
      • B(b);OGATE,XS(D)::R(C),XB(b)
      • R(e);N_GUARD::QAB(A),XQ(f)
      • Q(f);N_GUARD::B(E)
      • Q(f);N_GUARD::B(E),XQ(f)
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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).