MESON Chess Problem Database

Problem Display
PID: 268456 (3K1N2/4P1P1/pN1Q4/Pk4qR/1P2b3/3rr3/8/5B2 w - - 0 1)

Kovacs, Florian Janos

Die Schwalbe, 1931

3K1N2/4P1P1/pN1Q4/Pk4qR/1P2b3/3rr3/8/5B2

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.e8Q#
      • 2.e8B#
    • 1...Bd5
      • 2.Qc5#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sd4#
        • 2.Sc7#
      • 1...Re2
        • 2.Sc7#
      • 1...Qc5!
    • 1.Rxg5+?
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qc5#
      • 1...Bf5!
    • 1.g8B?
      • threat
        • 2.Bc4#
      • 1...Qd5
        • 2.e8Q#
        • 2.e8B#
      • 1...Bd5
        • 2.Qc5#
      • 1...Qc5!
  • Keys
    • 1.g8Q!
      • threat
        • 2.Qc4#
      • 1...Qd5
        • 2.e8Q#
        • 2.e8B#
      • 1...Bd5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(e);N_PINP(G)::P=Q
    • B(c);N_PINQ(F),N_SPINQ(e)::QAR1(F)
  • Tries
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);N_SPINR(a)::S(J)
      • Refutation
        • Q(e);N_PINP(G)
    • Try
      • R(D);CHECK,N_SPINP(G),XQ(e)
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • P(H);
      • Threat
        • B(H)
      • Vars
        • Q(e);N_PINP(G)::P=Q
        • B(c);N_PINQ(F),N_SPINQ(e)::QAR1(F)
      • Refutation
        • Q(e);N_PINP(G)
  • Actual
    • P(H);
    • Threat
      • QAB1(H)
    • Vars
      • Q(e);N_PINP(G)::P=Q
      • B(c);N_PINQ(F),N_SPINQ(e)::QAR1(F)
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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).