MESON Chess Problem Database

Problem Display
PID: 196974 (R1rk1K2/2pbp3/3p4/8/8/7B/8/3Q4 w - - 0 1)

Steger, W

Arbeiter Schachzeitung, 1919

R1rk1K2/2pbp3/3p4/8/8/7B/8/3Q4

#2

4 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxc8#
    • 1...Bb5
      • 2.Rxc8#
    • 1...Bc6
      • 2.Rxc8#
    • 1...Be8
      • 2.Rxc8#
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qxd7#
      • 1...Bxh3
        • 2.Qe8#
      • 1...Bxa4
        • 2.Rxc8#
      • 1...c6
        • 2.Qa5#
      • 1...Bg4
        • 2.Qe8#
      • 1...Bb5
        • 2.Rxc8#
      • 1...Bf5
        • 2.Qe8#
      • 1...Bc6
        • 2.Rxc8#
      • 1...Be6
        • 2.Qe8#
      • 1...Be8
        • 2.Rxc8#
        • 2.Qxe8#
      • 1...e6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD,P_SPINP(a)::R1(C),XR(e)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XB(c)
    • Vars
      • B(c);OGATE,XB(B)::QAR1(A)
      • B(c);N_GUARD,XQ(A)::R1(C),XR(e)
      • P(b);OGATEB::QAB(A)
      • B(c);OGATE::QAR1(A)
      • B(c);N_GUARD::R1(C),XR(e)
      • P(d);OGATEB::QAB(A)
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).