MESON Chess Problem Database

Problem Display
PID: 109734 (r3k3/b3p3/p3K3/8/5B2/8/8/4Q3 w q - 0 1)

Yakoleva-Dube, Marina

Komsomolets Byuletin, 1972

r3k3/b3p3/p3K3/8/5B2/8/8/4Q3

#2

3 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Bd4!
    • 1.Qh4?
      • threat
        • 2.Qxe7#
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...Bd4
        • 2.Qxe7#
      • 1...Bc5
        • 2.Qh8#
      • 1...0-0-0!
    • 1.Qa1?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qxa6#
      • 1...Bd4!
    • 1.Qe5?
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qc7#
      • 1...Bd4!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh8#
      • 1...Kd8
        • 2.Qh8#
      • 1...Kf8
        • 2.Qh8#
      • 1...0-0-0
        • 2.Qc6#
      • 1...Bd4
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(e);P-FLIGHT::QAR(A)
        • K(e);P-FLIGHT::QAR2(A)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(c)::QAR(A)
        • K(e);P-FLIGHT::QAR2(A)
        • B(b);::QAR1(A),XP(c)
        • B(b);::QAR(A)
      • Refutation
        • K(e);0-0-0
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(e);P-FLIGHT::QAR(A)
        • K(e);P-FLIGHT::QAR2(A)
        • K(e);0-0-0,OGATEB::QAB(A),XP(a)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(e);P-FLIGHT::QAR(A)
        • K(e);P-FLIGHT::QAR2(A)
        • K(e);0-0-0,OGATEB::QAR1(A)
      • Refutation
        • B(b);
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(e);P-FLIGHT::QAR(A)
      • K(e);P-FLIGHT::QAR2(A)
      • K(e);0-0-0::QAR2(A)
      • B(b);N_GUARD::QAR(A),XR(d)
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).