MESON Chess Problem Database

Problem Display
PID: 231213 (R3bk1K/1r2n1R1/1p2P2P/4b3/5p1N/2B4n/8/8 w - - 0 1)

Mari, Alberto

L'Italia Scacchistica, 1927

R3bk1K/1r2n1R1/1p2P2P/4b3/5p1N/2B4n/8/8

#2

7 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rf7#
    • 1...Bc7
      • 2.Rf7#
    • 1...Bxg7+
      • 2.Bxg7#
      • 2.hxg7#
    • 1...Sd5
      • 2.Sg6#
    • 1...Sf5
      • 2.Sg6#
    • 1...Sc6
      • 2.Sg6#
    • 1...Sg6+
      • 2.Sxg6#
    • 1...Sg8
      • 2.Sg6#
  • Keys
    • 1.Bb4!
      • threat
        • 2.Sg6#
      • 1...Bxg7+
        • 2.hxg7#
      • 1...Rb8
        • 2.Bxe7#
      • 1...Bd6
        • 2.Rf7#
      • 1...Bb8
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(c);N_PINR(E)::R1(E)
    • S(f);N_GUARD::S(B)
    • S(f);CHECK,N_GUARD::S(B),XS(f)
  • Actual
    • B(A);P_PINS(f)
    • Threat
      • S(B)
    • Vars
      • B(c);CHECK,OGATE,XR(E)::P(D),XB(c)
      • R(e);N_GUARD,N_SPINB(g)::B(A),XS(f)
      • B(c);N_PINR(E),N_SPINS(f)::R1(E)
      • B(c);N_PINR(E),N_SPINB(g)::R1(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).