MESON Chess Problem Database

Problem Display
PID: 204225 (3n4/5n2/3pN3/3PkpP1/4bN1Q/3pR3/3P4/1K5B w - - 0 1)

Bonavia-Hunt, Rev Noel Aubrey

The Problemist, 1954

3n4/5n2/3pN3/3PkpP1/4bN1Q/3pR3/3P4/1K5B

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg5
      • 2.Qh8#
    • 1...Sh8
      • 2.Qxh8#
  • Keys
    • 1.Rxd3!
      • threat
        • 2.Sg6#
      • 1...Bxd3+
        • 2.Sxd3#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...Sxg5
        • 2.Qh8#
      • 1...Sh8
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,XP(H)::QAB(F)
    • S(f);N_GUARD::QAB(F),XS(f)
  • Actual
    • R(D);N_PINB(b),P_SPINR(D),XP(a)
    • Threat
      • S(E)
    • Vars
      • B(b);CHECK,XR(D)::S(E),XB(b)
      • B(b);N_PINR(D),XP(G)::R1(D),XB(b)
      • S(f);N_GUARD,XP(H)::QAB(F)
      • S(f);N_GUARD::QAB(F),XS(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).