MESON Chess Problem Database

Problem Display
PID: 259684 (8/8/3p4/3k1P2/2RPb1p1/8/2p1QpN1/5B1K w - - 0 1)

Pirrone, Santi

Sinfonie Scacchistiche, 1976

8/8/3p4/3k1P2/2RPb1p1/8/2p1QpN1/5B1K

#2

7 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg2+
      • 2.Bxg2#
    • 1...Bd3
      • 2.Qe6#
    • 1...Bf3
      • 2.Qe6#
    • 1...Bxf5
      • 2.Sf4#
  • Tries
    • 1.Rc5+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qxf2#
        • 2.Qe3#
      • 1...dxc5!
  • Keys
    • 1.Qxg4!
      • threat
        • 2.Qg8#
      • 1...Bxg2+
        • 2.Qxg2#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Bd3
        • 2.Se3#
      • 1...Bf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,OGATE,XS(D)::B(A),XB(c)
    • B(c);N_PINS(D),OGATE::QAB1(C)
    • B(c);OGATE::QAB1(C)
    • B(c);N_PINS(D),XP(G)::S(D)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • P(f);XR(E)
  • Actual
    • Q(C);XP(d)
    • Threat
      • QAB(C)
    • Vars
      • B(c);CHECK,OGATE,XS(D)::QAB(C),XB(c)
      • B(c);N_PINS(D),OGATE,XP(G)::QAR2(C),XB(c)
      • B(c);N_PINS(D)::S(D)
      • B(c);OGATEB::QAB(C),XB(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).