MESON Chess Problem Database

Problem Display
PID: 159563 (k7/3K4/1p6/7R/2pQ4/8/p7/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2012

k7/3K4/1p6/7R/2pQ4/8/p7/8

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Kc8?
      • 1...Ka7
        • 2.Ra5#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...c3
        • 2.Qa4#
      • 1...b5!
    • 1.Qxb6?
      • threat
        • 2.Ra5#
        • 2.Rh8#
      • 1...a1B
        • 2.Ra5#
      • 1...a1R
        • 2.Rh8#
      • 1...a1Q!
  • Keys
    • 1.Kc7!
      • 1...Ka7
        • 2.Ra5#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...c3
        • 2.Qa4#
      • 1...b5
        • 2.Rh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(d);P-FLIGHT,P_SPINP(c)::R(B)
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XS(a)
        • P(a);OGATEB::QAB(A),XB(a)
        • P(a);OGATEB::QAB(A),XR(a)
        • P(b);OGATE::QAR(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::R(B)
      • Refutation
        • P(a);
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(d);P-FLIGHT,P_SPINP(c)::R(B)
      • P(a);OGATEB::QAB(A),XQ(a)
      • P(a);OGATEB::QAB(A),XS(a)
      • P(a);OGATEB::QAB(A),XB(a)
      • P(a);OGATEB::QAB(A),XR(a)
      • P(b);OGATE::QAR(A)
      • P(c);::R(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).