MESON Chess Problem Database

Problem Display
PID: 204586 (3R1nK1/Rn2p3/4kP2/1Bq3p1/2N3N1/5Q2/1b6/8 w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1954

3R1nK1/Rn2p3/4kP2/1Bq3p1/2N3N1/5Q2/1b6/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qd5#
    • 1...Qf2
      • 2.Qd5#
    • 1...Qa3
      • 2.Qd5#
    • 1...Qe3
      • 2.Qd5#
    • 1...Qb4
      • 2.Qd5#
    • 1...Qb6
      • 2.Qd5#
    • 1...Qxa7
      • 2.Qd5#
    • 1...Qxc4
      • 2.Bxc4#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qc7
      • 2.Qd5#
    • 1...Qc8
      • 2.Qd5#
    • 1...Sd6
      • 2.Rxe7#
    • 1...Sg6
      • 2.Bd7#
    • 1...Sd7
      • 2.Bxd7#
    • 1...Sh7
      • 2.Bd7#
  • Keys
    • 1.fxe7!
      • threat
        • 2.Qf7#
      • 1...Kxe7
        • 2.Re8#
      • 1...Qxe7
        • 2.Qd5#
      • 1...Sxd8
        • 2.exd8S#
      • 1...Qf2
        • 2.e8Q#
        • 2.e8R#
      • 1...Qf5
        • 2.e8Q#
        • 2.e8R#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Sd6
        • 2.exf8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 14
  • Sets
    • Q(b);N_GUARD::QAB1(A)
    • Q(b);N_GUARD,XR(F)::QAB1(A)
    • Q(b);OGATE,XS(B)::B(D),XQ(b)
    • Q(b);N_GUARD::QAB1(A),XQ(b)
    • S(e);OGATE::R1(F),XP(f)
    • S(g);N_GUARD::B(D)
    • S(g);N_GUARD::B(D),XS(g)
  • Actual
    • P(E);XP(f)
    • Threat
      • QAB1(A)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINS(e),XP(E)::R1(G)
      • Q(b);N_GUARD,SBLOCK,XP(E)::QAB1(A)
      • S(e);OGATE,XR(G)::PXS(e)=S
      • Q(b);N_GUARD::P=Q
      • B(a);N_GUARD::QAR1(A),XB(a)
      • S(e);S_CUTQ(b)::PXS(g)=S
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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).