MESON Chess Problem Database

Problem Display
PID: 47433 (2K5/4pk1N/2B5/6Q1/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

2K5/4pk1N/2B5/6Q1/8/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qd5#
  • Tries
    • 1.Kd7?
      • 1...e5
        • 2.Bd5#
      • 1...e6!
    • 1.Bf3?
      • 1...Ke6
        • 2.Qd5#
      • 1...Ke8
        • 2.Bh5#
        • 2.Qh5#
        • 2.Qg6#
        • 2.Qg8#
      • 1...e6
        • 2.Bh5#
      • 1...e5!
    • 1.Bd5+?
      • 1...Ke8
        • 2.Qh5#
        • 2.Qg6#
        • 2.Qg8#
      • 1...e6!
    • 1.Be8+?
      • 1...Kxe8
        • 2.Qh5#
        • 2.Qg6#
        • 2.Qg8#
      • 1...Ke6!
  • Keys
    • 1.Kd8!
      • 1...Ke6
        • 2.Qd5#
      • 1...e6
        • 2.Be8#
      • 1...e5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(a);N_GUARD::B(B)
      • Refutation
        • P(a);
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);SBLOCK::B(B)
      • Refutation
        • P(a);
    • Try
      • B(B);CHECK
      • Refutation
        • P(a);P_SPINP(a)
    • Try
      • B(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • P(a);SBLOCK::B(B)
      • P(a);N_GUARD::B(B)
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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).