MESON Chess Problem Database

Problem Display
PID: 258619 (2B1nr2/6p1/8/4p3/1K2k3/1pQ4N/6pn/6r1 w - - 0 1)

Geary, William

English Mechanic and World of Science, 1901

(First published on Fri Jan 18 1901)

2B1nr2/6p1/8/4p3/1K2k3/1pQ4N/6pn/6r1

#2

4 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Bb7#
  • Tries
    • 1.Sg5+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf4!
    • 1.Qc4+?
      • 1...Kf3
        • 2.Qd3#
      • 1...Ke3!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sg5#
      • 1...Kf3
        • 2.Qd3#
      • 1...Rf5
        • 2.Bb7#
      • 1...Sf3
        • 2.Sf2#
      • 1...g5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(i);SBLOCK::B(D)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAR2(A)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • S(B)
    • Vars
      • K(e);N_GUARD,S_FLIGHT::QAR2(A)
      • R(i);SBLOCK::B(D)
      • S(c);SBLOCK,S_CUTR(i)::S(B)
      • P(g);::S(B),XP(g)
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).