MESON Chess Problem Database

Problem Display
PID: 262118 (1B6/3pp1N1/6P1/3kp3/8/8/4N3/1BRKR3 w - - 0 1)

Somma, Francesco

Schweizerische Schachzeitung, 1933

1B6/3pp1N1/6P1/3kp3/8/8/4N3/1BRKR3

#2

8 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Ba2#
  • Tries
    • 1.Sf4+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Bxe5#
        • 2.Ba7#
        • 2.Re4#
      • 1...exf4!
    • 1.Sh5?
      • 1...Ke6
        • 2.Sef4#
      • 1...e4
        • 2.Shf4#
        • 2.Ba2#
      • 1...e6
        • 2.Sf6#
      • 1...d6!
  • Keys
    • 1.Se8!
      • 1...Ke6
        • 2.Sf4#
      • 1...d6
        • 2.Sc7#
      • 1...e4
        • 2.Ba2#
      • 1...e6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::B(A)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • P(b);XS(E)
    • Try
      • S(G);
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::S(E)
        • P(d);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(c);
  • Actual
    • S(G);
    • Vars
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::S(E)
      • P(c);SBLOCK::S(G)
      • P(b);SBLOCK::B(A)
      • P(d);N_GUARD,SBLOCK::S(G)
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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).