MESON Chess Problem Database

Problem Display
PID: 32694 (n7/7Q/4pr2/2K1k3/5q2/4B3/6N1/1B6 w - - 0 1)

Thompson, Theophilus Augustus

Chess Problems by Theophilus A. Thompson, 1873

n7/7Q/4pr2/2K1k3/5q2/4B3/6N1/1B6

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Bd4#
      • 2.Qe4#
    • 1...Qg3
      • 2.Bd4#
      • 2.Qe4#
    • 1...Qg5
      • 2.Bd4#
      • 2.Qe4#
    • 1...Qh6
      • 2.Bd4#
      • 2.Qe4#
    • 1...Qf1
      • 2.Bd4#
      • 2.Qe4#
    • 1...Qf2
      • 2.Qe4#
    • 1...Qf3
      • 2.Bd4#
    • 1...Qd4+
      • 2.Bxd4#
    • 1...Qe4
      • 2.Qxe4#
    • 1...Qf5
      • 2.Bd4#
    • 1...Sb6
      • 2.Qc7#
    • 1...Sc7
      • 2.Qxc7#
  • Tries
    • 1.Qh5+?
      • 1...Qg5
        • 2.Bd4#
      • 1...Qf5
        • 2.Bd4#
        • 2.Bf4#
      • 1...Rf5!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD,P_PINB(C)::QAR1(E)
    • Q(a);N_GUARD::B(C)
    • Q(a);CHECK,N_GUARD::B(C),XQ(a)
    • Q(a);N_GUARD::QAR1(E),XQ(a)
    • S(e);N_GUARD::QAB(E)
    • S(e);N_GUARD::QAB(E),XS(e)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • Q(a);P_SPINQ(a)::B(C)
      • Refutation
        • R(d);P_SPINR(d)
  • Actual
    • Q(E);P_PINQ(a)
    • Threat
      • B(C)
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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).