MESON Chess Problem Database

Problem Display
PID: 264205 (8/2R5/5n2/3k1P2/p2pp3/pr4QK/Bq1R1b1B/1N1r4 w - - 0 1)

Foschini, Ettore

L'Italia Scacchistica, 1929

8/2R5/5n2/3k1P2/p2pp3/pr4QK/Bq1R1b1B/1N1r4

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Sxc3#
    • 1...Be3
      • 2.Qe5#
      • 2.Qd6#
    • 1...d3
      • 2.Qd6#
    • 1...e3
      • 2.Qe5#
  • Tries
    • 1.Bxb3+?
      • 1...axb3
        • 2.Qe5#
        • 2.Qd6#
      • 1...Qxb3!
    • 1.Qxb3+?
      • 1...Qxb3+
        • 2.Sc3#
      • 1...axb3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Rc5#
      • 1...Qxc3+
        • 2.Sxc3#
      • 1...Bg3
        • 2.Qc5#
      • 1...e3
        • 2.Qc6#
      • 1...Sd7
        • 2.Rxd7#
      • 1...d3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD::S(A),XQ(b)
    • P(g);N_PINQ(E)::QAR1(E)
    • P(h);N_PINQ(E)::QAR1(E)
  • Tries
    • Try
      • B(B);CHECK,N_SPINQ(E),XR(e)
      • Refutation
        • Q(b);P_PINQ(E),XB(B)
    • Try
      • Q(E);CHECK,N_SPINQ(E),XR(e)
      • Vars
        • Q(b);CHECK,P_SPINQ(b),XQ(E)::S(A)
      • Refutation
        • P(f);N_SPINP(g),P_SPINP(f),XQ(E)
  • Actual
    • Q(E);
    • Threat
      • R1(H)
    • Vars
      • Q(b);CHECK,XQ(E)::S(A),XQ(b)
      • B(c);N_PINQ(E)::QAR1(E)
      • P(h);N_PINQ(E)::QAB1(E)
      • S(j);N_GUARD::R(H),XS(j)
      • P(g);N_PINQ(E)::QAB1(E)
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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).