MESON Chess Problem Database

Problem Display
PID: 139672 (8/5RNb/4Qbkp/6n1/4r1nK/5p1p/2Bq1p2/6R1 w - - 0 1)

Westbury, Eric Ernest

The Problemist, 1937

8/5RNb/4Qbkp/6n1/4r1nK/5p1p/2Bq1p2/6R1

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2+
      • 2.Bxe4#
    • 1...Se5+
      • 2.Bxe4#
  • Keys
    • 1.Sh5!
      • threat
        • 2.Rg7#
      • 1...Sh2+
        • 2.Bxe4#
      • 1...Se3+
        • 2.Sf4#
      • 1...Se5+
        • 2.Bxe4#
      • 1...Sxe6+
        • 2.Rxf6#
      • 1...Sxf7+
        • 2.Qxf6#
      • 1...Qd7
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(f);CHECK,P_SPINS(g)::B(B),XR(e)
  • Actual
    • S(F);
    • Threat
      • R1(E)
    • Vars
      • S(f);CHECK,P_SPINS(g)::B(B),XR(e)
      • S(f);CHECK,P_SPINS(g),S_CUTQ(a)::S(F)
      • S(g);CHECK,N_SPINB(h),P_SPINS(f),XQ(D)::R1(E),XB(h)
      • S(g);CHECK,P_SPINS(f),XR(E)::QAR1(D),XB(h)
      • Q(a);N_GUARD::S(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).