MESON Chess Problem Database

Problem Display
PID: 68068 (k7/2K5/8/1Np3p1/1p2Nprb/1p1p1B1r/3Q4/5q2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1949

k7/2K5/8/1Np3p1/1p2Nprb/1p1p1B1r/3Q4/5q2

#2

5 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sg3#
    • 1...Qb1
      • 2.Sg3#
    • 1...Qc1
      • 2.Sg3#
    • 1...Qg1
      • 2.Sg3#
    • 1...Rh1
      • 2.Sf2#
    • 1...Rh2
      • 2.Sf2#
    • 1...Bf2
      • 2.Sg3#
    • 1...Bg3
      • 2.Sf2#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qh8#
      • 1...Qa1
        • 2.Sg3#
        • 2.Qxa1#
      • 1...Be1
        • 2.Qa1#
      • 1...Bf2
        • 2.Sg3#
      • 1...Bg3
        • 2.Sf2#
      • 1...bxc3!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qh8#
      • 1...Qa1
        • 2.Sg3#
        • 2.Qxa1#
      • 1...Be1
        • 2.Qa1#
      • 1...Bf2
        • 2.Sg3#
      • 1...Bg3
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::B(B)+S(C)
    • R(d);N_GUARD::B(B)+S(C)
    • B(h);S_CUTQ(a)::B(B)+S(C)
    • B(h);S_CUTR(d)::B(B)+S(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • B(h);S_CUTQ(a)::QAB(A)
        • B(h);S_CUTQ(a)::B(B)+S(C)
        • B(h);S_CUTR(d)::B(B)+S(C)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(h);S_CUTQ(a)::QAB(A)
      • B(h);S_CUTQ(a)::B(B)+S(C)
      • B(h);S_CUTR(d)::B(B)+S(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).