MESON Chess Problem Database

Problem Display
PID: 77521 (4B2Q/8/K7/3k4/3P4/8/N5N1/8 w - - 0 1)

Zvetkov, Javor

Mir, 1936

4B2Q/8/K7/3k4/3P4/8/N5N1/8

#2

6 + 1

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qe5#
    • 1...Ke6
      • 2.Qe5#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Ke4!
    • 1.Sc3+?
      • 1...Kd6
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kc4!
    • 1.Se3+?
      • 1...Kd6
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Ke4!
    • 1.Sf4+?
      • 1...Kc4
        • 2.Bf7#
      • 1...Kd6
        • 2.Qe5#
      • 1...Ke4!
  • Keys
    • 1.Se1!
      • 1...Kc4
        • 2.Bf7#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(F)
    • K(a);S_FLIGHT::QAR1(F)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR1(F)
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);P-FLIGHT::QAB1(F)
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).