MESON Chess Problem Database

Problem Display
PID: 264204 (n2k4/RQp2Pn1/K1p2rP1/2P5/7B/8/8/8 w - - 0 1)

Foschini, Ettore

L'Italia Scacchistica, 1927

n2k4/RQp2Pn1/K1p2rP1/2P5/7B/8/8/8

#2

7 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Qxc7#
  • Tries
    • 1.Qc8+?
      • 1...Ke7
        • 2.f8Q#
        • 2.f8B#
      • 1...Kxc8!
    • 1.f8Q+?
      • 1...Kd7
        • 2.Qbc8#
      • 1...Se8!
  • Keys
    • 1.Qxc6!
      • 1...Ke7
        • 2.Qd6#
      • 1...Kc8
        • 2.Rxa8#
      • 1...Sf5
        • 2.f8Q#
      • 1...Sh5
        • 2.f8Q#
      • 1...Se6
        • 2.Qe8#
      • 1...Se8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Sb6
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::QAB1(F),XP(c)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);P_SPINP(c),S_FLIGHT::P=Q
      • Refutation
        • K(f);N_SPINR(b),P-FLIGHT,XQ(F)
    • Try
      • P(G);CHECK
      • Vars
        • K(f);N_SPINR(b),P-FLIGHT,P_SPINP(c)::QAB1(F)
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • Q(F);P_SPINQ(F),XP(a)
    • Vars
      • K(f);N_GUARD,P_SPINP(c),S_FLIGHT::QAB1(F)
      • K(f);N_GUARD,N_SPINR(b),P-FLIGHT,P_SPINP(c)::R(E),XS(e)
      • S(d);N_GUARD::P=Q
      • S(d);N_PINQ(F)::QAR1(F)
      • S(d);OGATE::PXS(d)=Q
      • S(e);N_PINQ(F)::QAB1(F),XP(c)
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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).