MESON Chess Problem Database

Problem Display
PID: 23836 (8/3K4/5pp1/4kPpR/1R3n1N/5Bn1/7Q/b7 w - - 0 1)

Fasano, Alessandro

2nd Prize, L'Italia Scacchistica, 1997

8/3K4/5pp1/4kPpR/1R3n1N/5Bn1/7Q/b7

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qxb2#
    • 1...Sxf5
      • 2.Sxg6#
    • 1...Sd5
      • 2.Re4#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qd6#
      • 1...Sxf5
        • 2.Re4#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sd3!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc7#
      • 1...Sxf5
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sd5
        • 2.Sxg6#
      • 1...Se6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB(A),XB(a)
    • S(b);P_SPINS(c),SBLOCK,XP(E)::S(D),XP(g)
    • S(c);P_SPINS(b),SBLOCK::R1(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • S(b);N_GUARD,XP(E)::R1(C)
        • B(a);N_GUARD::QAB1(A),XB(a)
        • S(b);N_GUARD::R1(C),XS(b)
        • S(c);N_GUARD::QAR1(A),XS(c)
      • Refutation
        • S(c);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • S(b);N_GUARD,XP(E)::QAR1(A)
      • S(b);N_GUARD::QAR1(A),XS(b)
      • B(a);N_GUARD::QAB(A),XB(a)
      • S(c);N_GUARD::S(D),XP(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).