MESON Chess Problem Database

Problem Display
PID: 271071 (3N4/2pp4/8/P1kpn3/K6Q/b3P3/8/8 w - - 0 1)

Westbury, Eric Ernest

Reading Observer, 1902

3N4/2pp4/8/P1kpn3/K6Q/b3P3/8/8

#2

5 + 6

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qb4#
    • 1...Bb2
      • 2.Qb4#
    • 1...Bb4
      • 2.Qxb4#
    • 1...Sc6
      • 2.Sb7#
    • 1...d4
      • 2.Qxd4#
    • 1...c6
      • 2.Sb7#
    • 1...d6
      • 2.Qd4#
  • Keys
    • 1.Qf4!
      • 1...Kd6
        • 2.Qf8#
      • 1...d4
        • 2.Qxd4#
      • 1...Bc1
        • 2.Qb4#
      • 1...Bb2
        • 2.Qb4#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Sd3
        • 2.Qxc7#
      • 1...Sf3
        • 2.Qxc7#
      • 1...Sc4
        • 2.Qxc7#
      • 1...Sg4
        • 2.Qxc7#
      • 1...Sc6
        • 2.Sb7#
      • 1...Sg6
        • 2.Qxc7#
      • 1...Sf7
        • 2.Qxc7#
      • 1...c6
        • 2.Sb7#
      • 1...d6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB1(C)
    • B(a);N_GUARD::QAB1(C),XB(a)
    • S(d);SBLOCK::S(E)
    • P(c);::QAB1(C),XP(c)
    • P(e);SBLOCK::S(E)
    • P(f);SBLOCK::QAB1(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);N_GUARD,P_SPINS(d),S_CUTP(f),S_FLIGHT::QAB(C)
      • P(c);::QAB1(C),XP(c)
      • B(a);N_GUARD::QAB1(C)
      • B(a);N_GUARD::QAB1(C),XB(a)
      • S(d);OGATE::QAR2(C),XP(e)
      • S(d);OGATE,SBLOCK::QAR2(C),XP(e)
      • S(d);SBLOCK::S(E)
      • P(e);SBLOCK::S(E)
      • P(f);SBLOCK::QAB1(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).