MESON Chess Problem Database

Problem Display
PID: 174011 (8/2p2b2/4p3/K4N1r/2QNk3/1p1RPp1p/2p4B/8 w - - 0 1)

Bottacchi, Antonio

L'Illustrazione Italiana, 1920

8/2p2b2/4p3/K4N1r/2QNk3/1p1RPp1p/2p4B/8

#2

7 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5+
      • 2.Sb5#
    • 1...exf5
      • 2.Se6#
    • 1...e5
      • 2.Sg3#
    • 1...c5
      • 2.Sd6#
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qc6#
      • 1...Rxf5+
        • 2.Sb5#
      • 1...exf5
        • 2.Se6#
      • 1...Be8
        • 2.Qxe6#
      • 1...e5
        • 2.Sg3#
      • 1...c5
        • 2.Sd6#
      • 1...c6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);CHECK,SBLOCK,XS(G)::QAR(D)+S(E)
    • P(g);SBLOCK,XS(G)::QAR(D)+S(E)
    • P(g);N_PINS(G),SBLOCK::S(G)
    • P(h);N_PINS(G)::S(G)
  • Actual
    • R(B);
    • Threat
      • QAB(D)
    • Vars
      • R(f);CHECK,SBLOCK,XS(G)::QAR(D)+S(E)
      • P(g);SBLOCK,XS(G)::QAR(D)+S(E)
      • B(i);N_GUARD::QAR2(D),XP(g)
      • P(g);N_PINS(G),SBLOCK::S(G)
      • P(h);N_PINS(G)::S(G)
      • P(h);::QAB(D),XP(h)
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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).