MESON Chess Problem Database

Problem Display
PID: 59933 (BB1b4/1r3N1K/1nk1PP2/Q7/p4N1p/1p1p4/2bnpr2/2R1q3 w - - 0 1)

Hawes, Frederick Thomas

O'Keefe, John James

6th HM., Brisbane Courier, 1925

BB1b4/1r3N1K/1nk1PP2/Q7/p4N1p/1p1p4/2bnpr2/2R1q3

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Be7
      • 2.Se5#
    • 1...Sd7
      • 2.Sxd8#
  • Tries
    • 1.Qxa4+?
      • 1...Kc5
        • 2.Bd6#
      • 1...Sxa4!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Qc5#
      • 1...Rf5
        • 2.Sb4#
      • 1...Be7
        • 2.Se5#
      • 1...Se4
        • 2.Se5#
      • 1...Sd7
        • 2.Sxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(m);N_PINS(F)::S(F)
    • S(j);N_PINS(F)::S(F),XB(m)
  • Tries
    • Try
      • Q(C);CHECK,XP(h)
      • Vars
        • K(k);N_SPINR(l),P-FLIGHT::B(I)
      • Refutation
        • S(j);XQ(C)
  • Actual
    • S(B);N_SPINS(F),P_SPINS(B),XP(g)
    • Threat
      • QAR1(C)
    • Vars
      • R(e);N_PINS(B),P_PINS(F)::S(B)
      • B(m);::S(F)
      • S(c);N_PINS(B),P_PINS(F)::S(B)
      • S(j);::S(F),XB(m)
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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).