MESON Chess Problem Database

Problem Display
PID: 52371 (1n6/1K3Rpq/5NPp/R2BkN2/1pPpr3/6P1/b5n1/4r2Q w - - 0 1)

Bristow, Henry

Source?, 0000

1n6/1K3Rpq/5NPp/R2BkN2/1pPpr3/6P1/b5n1/4r2Q

#2

10 + 11

16 Chess Amateur (The) 1908

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qh5#
    • 1...Re2
      • 2.Sg4#
    • 1...Re3
      • 2.Sg4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Bxc4
      • 2.Bxc4#
    • 1...Se3
      • 2.Qxe4#
    • 1...Sf4
      • 2.Sg4#
    • 1...Sa6
      • 2.Sd7#
    • 1...Sc6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
  • Keys
    • 1.Rf8!
      • threat
        • 2.Bg8#
      • 1...gxf6+
        • 2.Bf7#
      • 1...Kxf5
        • 2.Qh5#
      • 1...Bxc4
        • 2.Bxc4#
      • 1...Qg8
        • 2.Bxg8#
      • 1...Se3
        • 2.Qxe4#
      • 1...Sf4
        • 2.Sg4#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(g);OGATEB,P-FLIGHT,XS(F)::QAR2(A)
    • R(f);N_GUARD::S(G)
    • R(f);N_GUARD::S(G),XR(f)
    • B(b);OGATE,XP(C)::R(D)+B(E),XB(b)
    • S(c);OGATE::QAR1(A),XR(f)
    • S(c);S_CUTR(f)::S(G)
    • S(k);N_GUARD::S(G)
    • S(k);N_GUARD::S(G),XS(k)
  • Actual
    • R(J);
    • Threat
      • R(D)+B(E)
    • Vars
      • P(i);CHECK,SBLOCK,XS(G)::R(D)+B(E)
      • K(g);OGATEB,P-FLIGHT,XS(F)::QAR2(A)
      • B(b);OGATE,XP(C)::R(D)+B(E),XB(b)
      • Q(j);::R(D)+B(E),XQ(j)
      • S(c);OGATE::QAR1(A),XR(f)
      • S(c);S_CUTR(f)::S(G)
      • S(k);N_GUARD::S(G)
      • S(k);N_GUARD::S(G),XS(k)
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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).