MESON Chess Problem Database

Problem Display
PID: 267081 (8/3B2p1/KPP1b1rb/1Q4p1/pp2kP1n/4B3/3PR1P1/1q1N1RNn w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1955

8/3B2p1/KPP1b1rb/1Q4p1/pp2kP1n/4B3/3PR1P1/1q1N1RNn

#2

13 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.d3#
    • 1...Qa1
      • 2.d3#
    • 1...Qc1
      • 2.d3#
    • 1...Qb2
      • 2.d3#
    • 1...Bh3
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
    • 1...Bg4
      • 2.Qc4#
    • 1...Bd5
      • 2.Bc5#
    • 1...Bf5
      • 2.Qc4#
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sg3
      • 2.Sf2#
    • 1...Sf3
      • 2.gxf3#
    • 1...b3
      • 2.Sc3#
    • 1...gxf4
      • 2.Bf2#
  • Tries
    • 1.Bc5+?
      • 1...Kd5
        • 2.Re5#
      • 1...Kf5!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qe5#
      • 1...Qxb2
        • 2.d3#
      • 1...gxf4
        • 2.Bf2#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bd5
        • 2.Bc5#
      • 1...Sf3
        • 2.gxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(a);N_GUARD::P(D)
    • B(h);N_GUARD::QAR2(I)
    • B(h);N_GUARD,P_PINQ(I)::QAR2(I),XB(h)
    • B(h);SBLOCK::R(E)+B(G)
    • S(b);N_GUARD::S(A),XS(b)
    • S(b);N_GUARD::S(A)
    • S(f);OGATE::P(F),XS(f)
    • P(d);N_GUARD::S(A)
    • P(g);SBLOCK,XP(H)::R(E)+B(G)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::R1(E)
      • Refutation
        • K(e);P_SPINB(h),S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR1(I)
    • Vars
      • Q(a);N_GUARD,XS(A)::P(D)
      • P(g);SBLOCK,XP(H)::R(E)+B(G)
      • Q(a);N_GUARD,P_PINQ(I)::QAB1(I),XQ(a)
      • B(h);N_GUARD,P_PINQ(I)::QAR2(I),XB(h)
      • B(h);SBLOCK::R(E)+B(G)
      • S(f);OGATE::P(F),XS(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).