MESON Chess Problem Database

Problem Display
PID: 76498 (4n3/4Q3/7q/3k4/2R2n1N/N1p5/7B/Kb6 w - - 0 1)

Holladay, Edgar Dinwiddie

2nd Prize, Chess Correspondent (Meredith Ty.), 1945

4n3/4Q3/7q/3k4/2R2n1N/N1p5/7B/Kb6

#2

6 + 6

6232 Holladay Chess Problems 2007
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Qc5#
    • 1...Se2
      • 2.Qe5#
    • 1...Sg2
      • 2.Qe5#
    • 1...Sd3
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe5#
    • 1...Sh5
      • 2.Qe5#
    • 1...Se6
      • 2.Qb7#
    • 1...Sg6
      • 2.Qf7#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Rc5#
        • 2.Qe5#
      • 1...Qg5
        • 2.Rc5#
      • 1...Qg7
        • 2.Rc5#
      • 1...Qh5
        • 2.Rc5#
      • 1...Qb6
        • 2.Qe5#
      • 1...Qc6
        • 2.Rd4#
        • 2.Qe5#
      • 1...Qe6
        • 2.Qc5#
      • 1...Qf6
        • 2.Rc5#
      • 1...Qh8
        • 2.Rc5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se6
        • 2.Qb7#
      • 1...Sg6
        • 2.Rc5#
        • 2.Qf7#
      • 1...Sd6
        • 2.Qe5#
      • 1...Qd6!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Se3#
      • 1...Sxg2
        • 2.Qe5#
      • 1...Qe6
        • 2.Qc5#
      • 1...Qh3
        • 2.Sxf4#
      • 1...Qb6
        • 2.Sxf4#
      • 1...Se2
        • 2.Qe5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe5#
      • 1...Sh5
        • 2.Qe5#
      • 1...Se6
        • 2.Qb7#
      • 1...Sg6
        • 2.Qf7#

Anticipated by 41208(1940)

This anticipates 52980(1950)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(e);SBLOCK::QAR1(F)
    • S(c);::QAR1(F)
    • S(c);S_CUTB(a)::QAB1(F)
    • S(c);SBLOCK,S_CUTQ(e)::QAB(F)
    • S(c);N_GUARD,S_CUTQ(e)::QAB(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);::R1(D)
        • Q(e);::QAR1(F)
        • Q(e);SBLOCK::QAR1(F)
        • S(c);S_CUTB(a)::QAB1(F)
        • S(c);SBLOCK,S_CUTQ(e)::QAB(F)
        • S(f);::QAR1(F)
      • Refutation
        • Q(e);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • S(c);XS(E)::QAR1(F)
      • Q(e);SBLOCK::QAR1(F)
      • Q(e);N_GUARD::S(E),XS(c)
      • S(c);::QAR1(F)
      • S(c);S_CUTB(a)::QAB1(F)
      • S(c);SBLOCK,S_CUTQ(e)::QAB(F)
      • S(c);N_GUARD,S_CUTQ(e)::QAB(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).