MESON Chess Problem Database

Problem Display
PID: 22727 (8/8/8/K6B/8/N1B2R2/4p3/2k5 w - - 0 1)

Draper, H Jack

The Problemist, 1987

8/8/8/K6B/8/N1B2R2/4p3/2k5

#2

5 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Rf1#
  • Tries
    • 1.Re3?
      • 1...e1Q
        • 2.Rxe1#
      • 1...e1S
        • 2.Rxe1#
      • 1...e1B
        • 2.Rxe1#
      • 1...e1R
        • 2.Rxe1#
      • 1...Kd1!
  • Keys
    • 1.Rf2!
      • 1...Kd1
        • 2.Rf1#
      • 1...e1Q
        • 2.Rc2#
      • 1...e1S
        • 2.Bb2#
      • 1...e1B
        • 2.Rc2#
      • 1...e1R
        • 2.Bb2#
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(C)
  • Tries
    • Try
      • R(C);
      • Vars
        • P(b);OGATE,P_PINB(B)::R(C),XQ(b)
        • P(b);OGATE::R(C),XS(b)
        • P(b);OGATE,P_PINB(B)::R(C),XB(b)
        • P(b);OGATE::R(C),XR(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::R(C)
      • P(b);OGATE,P_PINB(B)::R1(C)
      • P(b);::B(B)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).