MESON Chess Problem Database

Problem Display
PID: 223181 (8/b1Q5/4p3/3p4/3k4/5P2/3BB3/3n2K1 w - - 0 1)

Wheeler, Charles Henry

Nashville Daily American, 1886

8/b1Q5/4p3/3p4/3k4/5P2/3BB3/3n2K1

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qf4#
    • 1...Sb2
      • 2.Qc3#
    • 1...Sf2
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Se3
      • 2.Bc3#
      • 2.Qc3#
    • 1...e5
      • 2.Qxa7#
  • Tries
    • 1.Bc3+?
      • 1...Ke3
        • 2.Qe5#
      • 1...Sxc3!
    • 1.Bb4?
      • threat
        • 2.Qf4#
      • 1...Ke3
        • 2.Qe5#
      • 1...Sf2
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...e5
        • 2.Qxa7#
      • 1...Bb8!
    • 1.Qg7+?
      • 1...e5
        • 2.Qxa7#
      • 1...Kc5!
  • Keys
    • 1.Ba5!
      • 1...Ke3
        • 2.Qe5#
      • 1...Bb6
        • 2.Bxb6#
      • 1...Bc5
        • 2.Qf4#
      • 1...Bb8
        • 2.Bb6#
      • 1...Sb2
        • 2.Qc3#
      • 1...Sf2
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Se3
        • 2.Bc3#
        • 2.Qc3#
      • 1...e5
        • 2.Qxa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);SBLOCK::QAR2(E)
    • S(a);N_GUARD::QAB1(E)
    • S(a);N_GUARD::QAB1(E),XS(a)
    • P(d);SBLOCK::QAB(E),XB(e)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • S(a);XB(B)
    • Try
      • B(B);
      • Threat
        • QAR2(E)
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
        • S(a);N_GUARD::QAB1(E)
        • S(a);N_GUARD::QAB1(E),XS(a)
        • P(d);SBLOCK::QAB(E),XB(e)
      • Refutation
        • B(e);
    • Try
      • Q(E);CHECK
      • Vars
        • P(d);P_SPINP(d),SBLOCK::QAB(E),XB(e)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(b);S_FLIGHT::QAR2(E)
      • B(e);N_GUARD::B(B),XB(e)
      • B(e);SBLOCK::QAR2(E)
      • B(e);N_GUARD::B(B)
      • S(a);N_GUARD::QAB1(E)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • P(d);SBLOCK::QAB(E),XB(e)
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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).