MESON Chess Problem Database

Problem Display
PID: 158419 (8/4Q3/6p1/5pN1/5k1n/7K/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

8/4Q3/6p1/5pN1/5k1n/7K/8/8

#2

3 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4+?
      • 1...Kxg5
        • 2.Qxh4#
      • 1...fxe4!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qg3#
      • 1...Kxg5
        • 2.Qxh4#
      • 1...Sf3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(B)::QAB1(C),XS(b)
      • Refutation
        • P(c);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT,XS(B)::QAB1(C),XS(b)
      • S(b);SBLOCK::S(B)
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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).