MESON Chess Problem Database

Problem Display
PID: 69264 (8/4p3/2K1PNp1/3Pk1p1/6P1/1P2p3/4P3/5Q2 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Tijdschrift vd NSB, 1897

8/4p3/2K1PNp1/3Pk1p1/6P1/1P2p3/4P3/5Q2

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa1#
  • Tries
    • 1.Qh3?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxf6
        • 2.Qh8#
      • 1...exf6
        • 2.Qxe3#
      • 1...Kd4!
    • 1.Qc1?
      • 1...Kd4
        • 2.Qb2#
        • 2.Qa1#
      • 1...Kxf6
        • 2.Qb2#
        • 2.Qa1#
        • 2.Qc3#
      • 1...exf6
        • 2.Qxe3#
      • 1...Kf4!
    • 1.Qh1?
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxf6
        • 2.Qa1#
        • 2.Qh8#
      • 1...exf6!
    • 1.Qf3?
      • 1...exf6
        • 2.Qxe3#
      • 1...Kd4!
  • Keys
    • 1.Qg1!
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxf6
        • 2.Qa1#
      • 1...exf6
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB(A)
        • K(b);OGATEB,S_FLIGHT,XS(H)::QAB(A)
        • P(e);SBLOCK,XS(H)::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(e);SBLOCK,XS(H)::QAR2(A),XP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • P(e);XS(H)
    • Try
      • Q(A);
      • Vars
        • P(e);SBLOCK,XS(H)::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAB(A)
      • K(b);S_FLIGHT::QAB(A)
      • K(b);S_FLIGHT,XS(H)::QAB(A)
      • P(e);SBLOCK,XS(H)::QAR2(A),XP(a)
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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).