MESON Chess Problem Database

Problem Display
PID: 172292 (3k1K2/3P4/8/1n1Q4/8/8/2B5/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

3k1K2/3P4/8/1n1Q4/8/8/2B5/8

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.d8Q#
  • Tries
    • 1.Bf5?
      • 1...Kc7
        • 2.d8Q#
      • 1...Sa3
        • 2.Qa5#
      • 1...Sc3
        • 2.Qa5#
      • 1...Sd4
        • 2.Qa5#
      • 1...Sd6
        • 2.Qa5#
      • 1...Sa7
        • 2.Qa5#
      • 1...Sc7!
    • 1.Qa8+?
      • 1...Kc7
        • 2.d8Q#
      • 1...Kxd7!
  • Keys
    • 1.Ba4!
      • 1...Kc7
        • 2.d8Q#
      • 1...Sa3
        • 2.Qa5#
      • 1...Sc3
        • 2.Qa5#
      • 1...Sd4
        • 2.Qa5#
      • 1...Sd6
        • 2.Qa5#
      • 1...Sa7
        • 2.Qa5#
      • 1...Sc7
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATE,S_FLIGHT::P=Q
  • Tries
    • Try
      • B(A);
      • Vars
        • K(b);OGATE,S_FLIGHT::P=Q
        • S(a);OGATE::QAB(B)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::P=Q
      • Refutation
        • K(b);P-FLIGHT,XP(C)
  • Actual
    • B(A);
    • Vars
      • K(b);OGATE,S_FLIGHT::P=Q
      • S(a);OGATE::QAB(B)
      • S(a);SBLOCK::QAB(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).