MESON Chess Problem Database

Problem Display
PID: 77945 (4Q3/8/6p1/3P2N1/6k1/6P1/6K1/8 w - - 0 1)

Adamski, Eduard

Znamya junosti, 1984

4Q3/8/6p1/3P2N1/6k1/6P1/6K1/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kh5
        • 2.Qh4#
      • 1...Kxg5!
    • 1.Qe3?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kh5!
    • 1.Qe4+?
      • 1...Kh5
        • 2.Qh4#
      • 1...Kxg5!
  • Keys
    • 1.Sf7!
      • 1...Kf5
        • 2.Qe6#
      • 1...Kh5
        • 2.Qe2#
      • 1...g5
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAB(E)
      • P(b);SBLOCK::S(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).