MESON Chess Problem Database

Problem Display
PID: 6491 (bB6/5rN1/8/6p1/R2N2kP/1Q1p1R1p/7P/1K5n w - - 0 1)

Eddy, Edwin John

1st Prize, West Sussex Gazette, 1929

bB6/5rN1/8/6p1/R2N2kP/1Q1p1R1p/7P/1K5n

#2

9 + 7

35 L'Italia Scacchistica 1930
887 Mate in Two Moves 1931

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh4
      • 2.Sdf5#
  • Tries
    • 1.Rg3+?
      • 1...Kxh4
        • 2.Sf3#
        • 2.Sdf5#
      • 1...Sxg3!
    • 1.Qe6+?
      • 1...Kxh4
        • 2.Sdf5#
        • 2.Rxh3#
        • 2.Qxh3#
      • 1...Rf5!
    • 1.Qxf7?
      • threat
        • 2.Sc6#
        • 2.Qh5#
      • 1...Kxh4
        • 2.Sdf5#
        • 2.Qh5#
      • 1...Bxf3
        • 2.Sxf3#
        • 2.Qh5#
      • 1...gxh4
        • 2.Qh5#
        • 2.Qg6#
        • 2.Qf4#
        • 2.Qf5#
      • 1...Be4
        • 2.Qh5#
      • 1...Bd5
        • 2.Qh5#
      • 1...Bc6
        • 2.Sxc6#
        • 2.Qh5#
      • 1...Sf2
        • 2.Qh5#
      • 1...Sg3!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Rf4#
      • 1...Rb7+
        • 2.Sb5#
      • 1...Kxh4
        • 2.Sdf5#
      • 1...Rxf3
        • 2.Sc6#
      • 1...Bxf3
        • 2.Sdf5#
      • 1...gxh4
        • 2.Rg3#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Rc7
        • 2.Sc6#

There are these versions: 133

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT,XP(G)::R(E)+S(F),DCHECK
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • S(a);XR(D)
    • Try
      • Q(C);CHECK
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • Q(C);XR(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(g);::QAB1(C)
        • S(a);::QAB1(C)
      • Refutation
        • S(a);
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+R(D),DCHECK
    • Vars
      • R(f);CHECK,N_GUARD,S_CUTB(g)::R(E)+S(F)
      • K(d);P-FLIGHT,XP(G)::R(E)+S(F),DCHECK
      • R(f);N_GUARD,P_SPINR(f),XR(D)::R(E)+S(F)
      • B(g);N_GUARD,P_SPINB(g),XR(D)::R(E)+S(F)
      • P(e);SBLOCK,XP(G)::QAB(C)+R(D),DCHECK
      • R(f);::QAB(C)+R(D),DCHECK,XR(f)
      • R(f);N_GUARD::R(E)+S(F)
HTML5 logo

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).