MESON Chess Problem Database

Problem Display
PID: 46503 (3Q4/3P4/8/1kNPP3/8/2K5/8/8 w - - 0 1)

Bajtay, Jozsef

Nepszava, 1937

3Q4/3P4/8/1kNPP3/8/2K5/8/8

#2

6 + 1

4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qa5#
  • Tries
    • 1.Kd3?
      • 1...Kxc5
        • 2.Qa5#
      • 1...Kb4!
    • 1.Sb3?
      • threat
        • 2.Qa5#
      • 1...Ka4
        • 2.Qa5#
      • 1...Ka6!
    • 1.Sa4?
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxa4!
    • 1.Sb7?
      • threat
        • 2.Qa5#
      • 1...Ka4
        • 2.Qa5#
      • 1...Ka6!
    • 1.Qa8?
      • 1...Kxc5
        • 2.Qc6#
        • 2.Qa5#
      • 1...Kb6!
    • 1.Qb8+?
      • 1...Ka5
        • 2.Qb4#
        • 2.d8Q#
        • 2.d8B#
      • 1...Kxc5!
    • 1.Qc8?
      • 1...Ka5
        • 2.Qa6#
      • 1...Kb6!
  • Keys
    • 1.Qf6!
      • 1...Ka5
        • 2.Qa6#
      • 1...Kxc5
        • 2.Qc6#

Anticipated by 100031(1933)

FEATURES

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