MESON Chess Problem Database

Problem Display
PID: 207509 (8/4B3/8/1p2kpP1/prbppN2/Pp5Q/1P5K/3R4 w - - 0 1)

Martindale, Frank W

Chess Problems - Martindale, FW, 1872

8/4B3/8/1p2kpP1/prbppN2/Pp5Q/1P5K/3R4

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qg3#
  • Tries
    • 1.Bf6+?
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kd6!
  • Keys
    • 1.Qc3!
      • 1...Kxf4
        • 2.Qg3#
      • 1...dxc3
        • 2.Bd6#
      • 1...e3
        • 2.Qxd4#
      • 1...Bf1
        • 2.Qc7#
      • 1...Be2
        • 2.Qc7#
      • 1...Bd3
        • 2.Qc7#
      • 1...Bd5
        • 2.Qc7#
      • 1...Be6
        • 2.Qc7#
      • 1...Bf7
        • 2.Qc7#
      • 1...Bg8
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(h);OGATEB,S_FLIGHT,XS(F)::QAB1(E)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • K(h);S_FLIGHT,XS(F)::QAB1(E)
      • Refutation
        • K(h);P_SPINP(e),S_FLIGHT
  • Actual
    • Q(E);P_PINP(e)
    • Vars
      • K(h);N_SPINP(e),OGATEB,S_FLIGHT,XS(F)::QAB1(E)
      • P(e);N_SPINP(e),XQ(E)::B(H)
      • P(f);::QAB1(E),XP(e)
      • B(d);OGATE::QAB(E)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).