MESON Chess Problem Database

Problem Display
PID: 216694 (8/8/8/p2Q4/1k6/8/2KP4/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1975

8/8/8/p2Q4/1k6/8/2KP4/8

#2

3 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qb3#
      • 2.Qxa5#
    • 1...Ka4
      • 2.Qb3#
  • Tries
    • 1.Kb2?
      • 1...Ka4
        • 2.Qb3#
        • 2.Qc4#
      • 1...a4!
    • 1.Qc4+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kxc4!
    • 1.Qb5+?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qxa5#
      • 1...Kxb5!
    • 1.d3?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qxa5#
      • 1...Ka4
        • 2.Qb3#
      • 1...a4!
  • Keys
    • 1.d4!
      • threat
        • 2.Qb3#
      • 1...Ka3
        • 2.Qb3#
        • 2.Qxa5#
      • 1...Ka4
        • 2.Qb3#
      • 1...a4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • P(B);
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • P(b);
  • Actual
    • P(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • P(b);SBLOCK::QAB1(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).