MESON Chess Problem Database

Problem Display
PID: 23566 (8/1N6/4p3/1K1k4/5Q2/8/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/1N6/4p3/1K1k4/5Q2/8/8/8

#2

3 + 2

5454 Near Snap 2014
3713 Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qc4#
  • Tries
    • 1.Kb4?
      • 1...e5
        • 2.Qc4#
      • 1...Kc6!
    • 1.Ka6?
      • 1...Kc6
        • 2.Qd6#
      • 1...e5!
    • 1.Qa4?
      • 1...e5
        • 2.Qc4#
      • 1...Ke5!
    • 1.Qb4?
      • 1...e5
        • 2.Qc4#
      • 1...Ke5!
    • 1.Qg4?
      • 1...e5
        • 2.Qc4#
      • 1...Ke5!
    • 1.Qh4?
      • 1...e5
        • 2.Qc4#
      • 1...Ke5!
  • Keys
    • 1.Sc5!
      • 1...e5
        • 2.Qd2#

Anticipated by 203465(1924), 149799(1953)

FEATURES

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