MESON Chess Problem Database

Problem Display
PID: 204613 (8/3B4/4R3/3k2K1/6n1/1nQ5/8/8 w - - 0 1)

Barclay, William L

Deutsche Schachzeitung, 1967

8/3B4/4R3/3k2K1/6n1/1nQ5/8/8

#2

4 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd6+?
      • 1...Ke4
        • 2.Bf5#
        • 2.Bc6#
      • 1...Kxd6!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qc6#
      • 1...Kxe4
        • 2.Bc6#
      • 1...Kd6
        • 2.Qc6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sa5
        • 2.Qd4#
      • 1...Sc5
        • 2.Qd4#
      • 1...Se5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);P-FLIGHT,XR(C)
  • Actual
    • R(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);S_FLIGHT,XR(C)::B(D)
      • K(c);P-FLIGHT::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • S(a);N_GUARD::QAR1(A)
      • S(b);N_GUARD::QAR1(A),XS(b)
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).