MESON Chess Problem Database

Problem Display
PID: 2709 (8/8/3K4/3N4/3k4/3b4/3Q4/8 w - - 0 1)

Suesman, Walter B

Source?, 0000

8/8/3K4/3N4/3k4/3b4/3Q4/8

#2

3 + 2

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb4#
    • 1...Ke4
      • 2.Qf4#
  • Tries
    • 1.Kc6?
      • 1...Kc4
        • 2.Qc3#
        • 2.Qb4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Ke5!
    • 1.Ke6?
      • 1...Kc4
        • 2.Qb4#
      • 1...Ke4
        • 2.Qe3#
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qb2+?
      • 1...Kc4
        • 2.Se3#
        • 2.Sb6#
        • 2.Qb4#
      • 1...Ke4!
    • 1.Qf2+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Sf6#
        • 2.Qf4#
      • 1...Kc4!
  • Keys
    • 1.Qd1!
      • 1...Kc4
        • 2.Qa4#
      • 1...Ke4
        • 2.Qg4#

This anticipates 4630(1884), 73187(1921), 71344(1924), 79357(1964)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINB(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,N_PINB(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINB(a),P-FLIGHT::QAR2(A)
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).