MESON Chess Problem Database

Problem Display
PID: 101046 (8/pp1N4/k3p3/4K3/B1p5/p1B5/6Q1/8 w - - 0 1)

Kintzig, Robert

Good Companions, 1921

8/pp1N4/k3p3/4K3/B1p5/p1B5/6Q1/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qc6#
    • 1...b6
      • 2.Sb8#
  • Tries
    • 1.Kxe6?
      • 1...b5
        • 2.Qc6#
      • 1...b6
        • 2.Sb8#
      • 1...a2!
    • 1.Qh1?
      • 1...b5
        • 2.Qc6#
      • 1...b6
        • 2.Sb8#
      • 1...a2!
    • 1.Qf3?
      • 1...b5
        • 2.Qc6#
      • 1...b6
        • 2.Sb8#
      • 1...a2!
    • 1.Qe4?
      • 1...b5
        • 2.Qc6#
      • 1...b6
        • 2.Sb8#
      • 1...a2!
    • 1.Qd5?
      • threat
        • 2.Bb5#
        • 2.Qa5#
        • 2.Qb5#
      • 1...b5
        • 2.Bxb5#
        • 2.Qc6#
        • 2.Qxb5#
      • 1...b6
        • 2.Sb8#
        • 2.Bb5#
      • 1...exd5!
    • 1.Qc6+?
      • 1...b6
        • 2.Sc5#
        • 2.Sb8#
        • 2.Bb5#
        • 2.Qc8#
      • 1...bxc6!
    • 1.Qg8?
      • 1...b5
        • 2.Qc8#
      • 1...b6
        • 2.Qc8#
      • 1...a2!
  • Keys
    • 1.Bc6!
      • 1...bxc6
        • 2.Qxc6#
      • 1...a2
        • 2.Qxa2#
      • 1...b5
        • 2.Bb7#
      • 1...b6
        • 2.Sb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::QAR2(A)
    • P(f);SBLOCK::S(E)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(d)
      • Vars
        • P(f);N_GUARD::QAR2(A)
        • P(f);SBLOCK::S(E)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(f);N_GUARD::QAR2(A)
        • P(f);SBLOCK::S(E)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(f);N_GUARD::QAR2(A)
        • P(f);SBLOCK::S(E)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(f);N_GUARD::QAR2(A)
        • P(f);SBLOCK::S(E)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • P(f);XQ(A)
    • Try
      • Q(A);
      • Vars
        • P(f);OGATEB::QAB(A)
      • Refutation
        • P(a);
  • Actual
    • B(C);
    • Vars
      • P(f);OGATE,XB(C)::QAR2(A),XP(f)
      • P(a);OGATEB::QAR(A),XP(a)
      • P(f);SBLOCK::B(C)
      • P(f);SBLOCK::S(E)
HTML5 logo

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).