MESON Chess Problem Database

Problem Display
PID: 59063 (2B2N2/3n3P/1Q1bpPN1/2r2k2/R1n3pP/2BP4/Kp6/1R2r3 w - - 0 1)

Brotherton, David WA

Comm., The Problemist, 1963

2B2N2/3n3P/1Q1bpPN1/2r2k2/R1n3pP/2BP4/Kp6/1R2r3

#2

12 + 9

136 Problem Observer 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Ree5
      • 2.Rf1#
    • 1...Rce5
      • 2.Qf2#
    • 1...Bf4
      • 2.Se7#
    • 1...Be5
      • 2.Qxe6#
    • 1...Sce5
      • 2.Rf4#
  • Tries
    • 1.Qxd6?
      • threat
        • 2.Se7#
        • 2.Qf4#
      • 1...Sxd6
        • 2.Se7#
        • 2.Rf4#
      • 1...Sxf8
        • 2.Se7#
      • 1...Ree5
        • 2.Rf1#
      • 1...Sce5
        • 2.Rf4#
        • 2.Qxe6#
      • 1...Sde5
        • 2.Qxe6#
      • 1...g3
        • 2.Qf4#
      • 1...Rf1
        • 2.Se7#
        • 2.Rxf1#
        • 2.Qxe6#
      • 1...Re4
        • 2.Se7#
      • 1...e5
        • 2.Bxd7#
        • 2.Qe6#
      • 1...Rce5!
  • Keys
    • 1.h8Q!
      • threat
        • 2.Qh5#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Ree5
        • 2.Rf1#
      • 1...Rce5
        • 2.Qf2#
      • 1...Bf4
        • 2.Se7#
      • 1...Be5
        • 2.Qxe6#
      • 1...Sce5
        • 2.Rf4#
      • 1...Sde5
        • 2.Bxe6#
      • 1...e5
        • 2.Bxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::R(A)
    • R(e);OGATE::QAR(G)
    • B(g);N_GUARD,SBLOCK::S(I)
    • B(g);OGATE::QAB1(G),XP(h)
    • S(c);OGATE::R1(E)
  • Tries
    • Try
      • Q(G);XB(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(i);P_SPINP(h),XS(L)::S(I)
        • R(a);OGATE::R(A)
        • S(i);P_SPINP(h),S_CUTR(a)::QAB1(G),XP(h)
        • P(d);::QAR1(G)
        • R(a);::S(I)
      • Refutation
        • R(e);
  • Actual
    • P(J);
    • Threat
      • QAR2(J)
    • Vars
      • S(i);OGATE,P_SPINP(h),XP(H)::QAR1(J),XS(i)
      • R(a);OGATE::R(A)
      • R(e);OGATE::QAR(G)
      • B(g);N_GUARD,SBLOCK::S(I)
      • B(g);OGATE::QAB1(G),XP(h)
      • S(c);OGATE::R1(E)
      • S(i);OGATE,P_SPINP(h)::B(K),XP(h)
      • P(h);OGATEB,P_SPINS(i)::B(K),XS(i)
HTML5 logo

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).