MESON Chess Problem Database

Problem Display
PID: 149098 (4Nb2/qp1B4/1N3B1p/r1k4P/p1p5/K4P2/n2p4/1Q1b4 w - - 0 1)

Fink, Adolf Jay

2nd Prize, Good Companions (October), 1914

4Nb2/qp1B4/1N3B1p/r1k4P/p1p5/K4P2/n2p4/1Q1b4

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb6
      • 2.Qf5#
    • 1...Rb5
      • 2.Qxb5#
    • 1...Ra6
      • 2.Qb5#
    • 1...Bc2
      • 2.Qg1#
    • 1...Be2
      • 2.Qg1#
    • 1...Bb3
      • 2.Qg1#
    • 1...Bxf3
      • 2.Qg1#
    • 1...Sc1
      • 2.Qb4#
    • 1...Sc3
      • 2.Qb4#
    • 1...Sb4
      • 2.Qxb4#
  • Tries
    • 1.Qe4?
      • threat
        • 2.Bd4#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Qxb6
        • 2.Bd4#
        • 2.Qf5#
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bg7
        • 2.Qe3#
        • 2.Qd4#
      • 1...Kxb6+!
    • 1.Qb2?
      • threat
        • 2.Bd4#
        • 2.Qd4#
      • 1...Qxb6
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bg7
        • 2.Be7#
        • 2.Qd4#
      • 1...Sc3
        • 2.Qb4#
      • 1...c3!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qg1#
      • 1...Kxb6+
        • 2.Be7#
      • 1...Qxb6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(i);SBLOCK,XS(E)::QAR(A)
    • R(f);N_GUARD::QAR1(A),XR(f)
    • R(f);N_GUARD::QAR1(A)
    • B(a);OGATE::QAB(A)
    • B(a);OGATE,XP(C)::QAB(A)
    • S(b);N_GUARD::QAB1(A)
    • S(b);N_GUARD::QAB1(A),XS(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • K(g);CHECK,S_FLIGHT,XS(E)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • P(e);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(g);CHECK,S_FLIGHT,XS(E)::QAR(A)+B(F)
      • Q(i);SBLOCK,XS(E)::QAR(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).