MESON Chess Problem Database

Problem Display
PID: 79843 (5B2/8/2Q5/3pk3/6P1/8/5K2/8 w - - 0 1)

Asaulenko, Ivan

Problemist Pribuzhya, 1992

5B2/8/2Q5/3pk3/6P1/8/5K2/8

#2

4 + 2

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd5+?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxd5!
    • 1.Qg6?
      • 1...Kf4
        • 2.Bd6#
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#
      • 1...Kd4!
  • Keys
    • 1.Qc2!
      • 1...Kd4
        • 2.Bg7#
      • 1...Kf4
        • 2.Qf5#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#

Anticipated by 76392(1927), 76797(1945)

This anticipates 180667(2017)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK,XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • P(a);SBLOCK::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::B(D)
      • K(b);S_FLIGHT::QAR1(C)
      • K(b);P-FLIGHT::QAB1(C)
      • P(a);SBLOCK::QAR1(C)
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).