MESON Chess Problem Database

Problem Display
PID: 1067 (2K5/5Q2/8/pk6/N7/8/8/1N6 w - - 0 1)

Kolpakov, Viktor Sergeevich

The Problemist Supplement, 2000

2K5/5Q2/8/pk6/N7/8/8/1N6

#2

4 + 2

4883 Still More Fun with Chess Miniatures 2002
102 Probleemblad 2003
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa4
      • 2.Qc4#
    • 1...Ka6
      • 2.Qb7#
    • 1...Kc6
      • 2.Qd7#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Qb3#
      • 1...Kxa4
        • 2.Qc4#
      • 1...Kb4!
    • 1.Sbc3+?
      • 1...Ka6
        • 2.Qb7#
      • 1...Kc6
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qg6#
        • 2.Qf6#
        • 2.Qc7#
        • 2.Qd7#
      • 1...Kb4!
    • 1.Qb3+?
      • 1...Ka6
        • 2.Qb6#
        • 2.Qb7#
      • 1...Kc6!
    • 1.Qd5+?
      • 1...Kxa4
        • 2.Qc4#
      • 1...Ka6
        • 2.Qb7#
      • 1...Kb4!
    • 1.Qe6?
      • 1...Kxa4
        • 2.Qc4#
      • 1...Kb4!
    • 1.Qc7?
      • 1...Kxa4
        • 2.Qc4#
      • 1...Ka6
        • 2.Qb6#
        • 2.Qb7#
      • 1...Kb4!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qc4#
      • 1...Kxa4
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Ka6
        • 2.Qb7#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 87929(1963)

This anticipates 153103(2001)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XS(B)::QAR2(C)
    • K(b);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAB1(C)
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::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).