MESON Chess Problem Database

Problem Display
PID: 59817 (8/1ppP1Q2/2k5/1RBr1pb1/4n2q/2pprB2/K1N3b1/1R6 w - - 0 1)

Westbury, Eric Ernest

1st Prize, Brisbane Courier, 1923-1924

8/1ppP1Q2/2k5/1RBr1pb1/4n2q/2pprB2/K1N3b1/1R6

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxd4#
    • 1...Rxc5
      • 2.Qe6#
    • 1...Re5
      • 2.Sd4#
    • 1...Sd2
      • 2.Qxd5#
    • 1...Sf2
      • 2.Qxd5#
    • 1...Sg3
      • 2.Qxd5#
    • 1...Sxc5
      • 2.Qxd5#
    • 1...Sf6
      • 2.d8S#
  • Tries
    • 1.Qe6+?
      • 1...Rd6
        • 2.Sd4#
      • 1...Sd6!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Qxd5#
      • 1...Rxb5
        • 2.Qe6#
      • 1...Rxd7
        • 2.Qc4#
      • 1...Rc5
        • 2.Qe6#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Re5
        • 2.Sd4#
      • 1...Rd6
        • 2.Rc5#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sf6
        • 2.d8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(g);N_GUARD,P_SPINS(e)::S(C),XR(g)
    • R(g);N_GUARD,P_SPINS(e),XB(F)::QAR2(H)
    • R(g);N_GUARD,P_SPINS(e)::S(C)
    • S(e);P_SPINR(g)::QAB1(H),XR(g)
    • S(e);P_SPINR(g),XB(F)::QAB1(H),XR(g)
    • S(e);P_SPINR(g),S_CUTB(i)::P=S
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • R(g);P_SPINR(g),P_SPINS(e)::S(C)
      • Refutation
        • S(e);P_SPINR(g),P_SPINS(e)
  • Actual
    • B(F);
    • Threat
      • QAB1(H),XR(g)
    • Vars
      • R(g);N_GUARD,P_SPINS(e),XR(E)::QAR2(H)
      • R(g);OGATE,P_SPINS(e),SBLOCK,XP(G)::QAR2(H)
      • R(g);N_GUARD,P_SPINS(e)::QAR2(H)
      • R(g);N_GUARD,P_SPINS(e)::S(C),XR(g)
      • R(g);N_GUARD,P_SPINS(e)::S(C)
      • R(g);N_GUARD,P_SPINS(e),SBLOCK::R1(E)
      • S(e);N_GUARD,P_SPINR(g),SBLOCK::R1(E)
      • S(e);P_SPINR(g),S_CUTB(i)::P=S
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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).