MESON Chess Problem Database

Problem Display
PID: 23213 (Q6R/8/8/8/6Pr/5K1k/8/6b1 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

Q6R/8/8/8/6Pr/5K1k/8/6b1

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kh2
      • 2.Rxh4#
    • 1...Rh5
      • 2.Rxh5#
    • 1...Rh6
      • 2.Rxh6#
    • 1...Rh7
      • 2.Rxh7#
    • 1...Rxh8
      • 2.Qxh8#
  • Tries
    • 1.Qd8?
      • threat
        • 2.Rxh4#
        • 2.Qxh4#
      • 1...Kh2
        • 2.Rxh4#
        • 2.Qxh4#
      • 1...Rxh8
        • 2.Qxh8#
      • 1...Rh5
        • 2.Rxh5#
      • 1...Rh6
        • 2.Rxh6#
      • 1...Rh7
        • 2.Rxh7#
      • 1...Bf2!
  • Keys
    • 1.Qa1!
      • 1...Kh2
        • 2.Rxh4#
      • 1...Rxh8
        • 2.Qxh8#
      • 1...Rh5
        • 2.Rxh5#
      • 1...Rh6
        • 2.Rxh6#
      • 1...Rh7
        • 2.Rxh7#
      • 1...Bf2
        • 2.Qh1#
      • 1...Bh2
        • 2.Qf1#
      • 1...Be3
        • 2.Qh1#
      • 1...Bd4
        • 2.Qh1#
      • 1...Bc5
        • 2.Qh1#
      • 1...Bb6
        • 2.Qh1#
      • 1...Ba7
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::R(D),XR(c)
    • R(c);OGATEB::R(D),XR(c)
    • R(c);N_SPINR(c),OGATE,XR(D)::QAR(C),XR(c)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_SPINR(c),OGATE,XR(D)::QAR(C),XR(c)
        • R(c);OGATEB::R(D),XR(c)
      • Refutation
        • B(a);
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::R(D),XR(c)
      • R(c);N_SPINR(c),OGATE,XR(D)::QAR(C),XR(c)
      • R(c);OGATEB::R(D),XR(c)
      • B(a);OGATE::QAR2(C)
      • B(a);SBLOCK::QAB(C)
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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).