MESON Chess Problem Database

Problem Display
PID: 255675 (1B5R/8/5pN1/3K2n1/3b4/R5P1/1pp1QPk1/2q2nrb w - - 0 1)

Shire, David J

Probleemblad, 1984

1B5R/8/5pN1/3K2n1/3b4/R5P1/1pp1QPk1/2q2nrb

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.fxe3#
    • 1...Qf4
      • 2.Sxf4#
    • 1...Qa1
      • 2.Sf4#
    • 1...Qb1
      • 2.Sf4#
    • 1...Qd1
      • 2.Sf4#
    • 1...Qe1
      • 2.Sf4#
    • 1...Bc3
      • 2.f3#
    • 1...Be3
      • 2.fxe3#
    • 1...Be5
      • 2.f4#
    • 1...Sd2
      • 2.Sf4#
    • 1...Se3+
      • 2.fxe3#
    • 1...Sxg3
      • 2.Rxg3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Se4
      • 2.Qf3#
    • 1...Se6
      • 2.Qf3#
    • 1...Sf7
      • 2.Qf3#
  • Keys
    • 1.g4!
      • threat
        • 2.Sh4#
      • 1...Se3+
        • 2.fxe3#
      • 1...Qe3
        • 2.fxe3#
      • 1...Qf4
        • 2.Sxf4#
      • 1...Bc3
        • 2.f3#
      • 1...Be3
        • 2.fxe3#
      • 1...Be5
        • 2.f4#
      • 1...Sg3
        • 2.Rxg3#
      • 1...Sf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(a);OGATE::QAR(A)+P(B),XQ(a)
    • Q(a);N_GUARD::S(F),XQ(a)
    • Q(a);N_GUARD::S(F)
    • B(h);N_GUARD::QAR(A)+P(B)
    • B(h);OGATE::QAR(A)+P(B),XB(h)
    • S(b);S_CUTQ(a)::S(F)
    • S(b);CHECK,OGATE::QAR(A)+P(B),XS(b)
    • S(b);OGATE,XP(D)::R1(C),XS(b)
    • S(i);N_GUARD::QAB1(A),XS(i)
    • S(i);N_GUARD::QAB1(A)
  • Actual
    • P(D);
    • Threat
      • S(F)
    • Vars
      • S(b);CHECK,OGATE::QAR(A)+P(B),XS(b)
      • Q(a);OGATE::QAR(A)+P(B),XQ(a)
      • Q(a);N_GUARD::S(F),XQ(a)
      • B(h);N_GUARD::QAR(A)+P(B)
      • B(h);OGATE::QAR(A)+P(B),XB(h)
      • S(b);N_GUARD::R1(C),XS(b)
      • S(i);N_GUARD::QAB1(A),XS(i)
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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).