MESON Chess Problem Database

Problem Display
PID: 45011 (7Q/4N3/b2pp3/1p2N3/1K1kp3/3P2n1/8/2B5 w - - 0 1)

Laws, Benjamin Glover

Source?, 0000

7Q/4N3/b2pp3/1p2N3/1K1kp3/3P2n1/8/2B5

#2

6 + 7

3316 Chess Problem Text Book 1887

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Bb2#
    • 1...dxe5
      • 2.Qd8#
    • 1...d5
      • 2.S7c6#
  • Tries
    • 1.Qh6?
      • threat
        • 2.Bb2#
      • 1...Kxe5
        • 2.Bb2#
        • 2.Qg7#
        • 2.Qh8#
      • 1...exd3
        • 2.Qe3#
      • 1...dxe5
        • 2.Qe3#
      • 1...Se2!
  • Keys
    • 1.Qa8!
      • 1...Kxe5
        • 2.Qh8#
      • 1...exd3
        • 2.Sf3#
      • 1...dxe5
        • 2.Qd8#
      • 1...Bb7
        • 2.Qa1#
      • 1...Bc8
        • 2.Qa1#
      • 1...Sf1
        • 2.Qxe4#
      • 1...Sh1
        • 2.Qxe4#
      • 1...Se2
        • 2.Qxe4#
      • 1...Sf5
        • 2.Qxe4#
      • 1...Sh5
        • 2.Qxe4#
      • 1...e3
        • 2.Bb2#
      • 1...d5
        • 2.S7c6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(A)
    • P(f);OGATEB,P_SPINP(f),SBLOCK,XS(D)::QAR(F)
    • P(f);SBLOCK::S(E)
  • Tries
    • Try
      • Q(F);
      • Threat
        • B(A)
      • Vars
        • P(c);XP(B)::QAB1(F)
        • P(f);SBLOCK,XS(D)::QAB1(F)
      • Refutation
        • S(a);
  • Actual
    • Q(F);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(D)::QAB(F)
      • P(c);N_GUARD,SBLOCK,XP(B)::S(D)
      • P(f);OGATEB,SBLOCK,XS(D)::QAR(F)
      • B(e);OGATE::QAB(F)
      • S(a);N_GUARD::QAR1(F),XP(c)
      • P(c);SBLOCK::B(A)
      • P(f);SBLOCK::S(E)
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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).