MESON Chess Problem Database

Problem Display
PID: 79845 (8/3p1N1r/8/K1k5/4QP2/8/8/8 w - - 0 1)

Asaulenko, Ivan

Problemist Pribuzhya, 1992

8/3p1N1r/8/K1k5/4QP2/8/8/8

#2

4 + 3

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qe5+?
      • 1...Kc6
        • 2.Sd8#
      • 1...d5
        • 2.Qc3#
      • 1...Kc4!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sb7#
      • 1...Kd6
        • 2.Qe5#
      • 1...d5
        • 2.Qb4#
      • 1...d6
        • 2.Se6#

This anticipates 172439(1997)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
        • P(b);P_SPINP(b),SBLOCK::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • P(b);SBLOCK::QAB1(A)
      • P(b);N_GUARD,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).