MESON Chess Problem Database

Problem Display
PID: 60200 (2R1Nb2/6Q1/1rB4q/pPkb3p/3n1p2/P2P1P2/N7/5K2 w - - 0 1)

Jerrard, Ernest Haslam Harvey

7th Highly Comm., Brisbane Courier, 1932

2R1Nb2/6Q1/1rB4q/pPkb3p/3n1p2/P2P1P2/N7/5K2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6
      • 2.Qe5#
  • Tries
    • 1.Qxf8+?
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qxf8!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sa4#
      • 1...Qxc6
        • 2.Qxf8#
      • 1...Rxc6
        • 2.Qa7#
      • 1...Bxc6
        • 2.Qe5#
      • 1...Sxc6
        • 2.Qg1#
      • 1...Bb3
        • 2.Se4#
      • 1...a4
        • 2.Sxa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(e);OGATEB,P_SPINB(e),XB(G)::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK,XB(i)
      • Vars
        • Q(h);N_GUARD,P_SPINQ(h)::QAB1(H),XQ(h)
      • Refutation
        • Q(h);XQ(H)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(h);N_GUARD,P_SPINQ(h),XB(G)::QAB(H),XB(i)
      • R(g);OGATEB,P_SPINR(g),XB(G)::QAB(H)
      • B(e);OGATEB,P_SPINB(e),XB(G)::QAR2(H)
      • S(a);OGATEB,P_SPINS(a),XB(G)::QAB(H)
      • B(e);N_GUARD::S(B)
      • P(c);::S(B),XP(c)
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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).