MESON Chess Problem Database

Problem Display
PID: 186788 (8/B1p2pK1/Q7/3k1pp1/N7/1P6/r1r3N1/1B2R3 w - - 0 1)

Colaneri, Bruno

Best Problems, 2019

8/B1p2pK1/Q7/3k1pp1/N7/1P6/r1r3N1/1B2R3

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Sc3#
    • 1...Rd2
      • 2.Sc3#
    • 1...Rf2
      • 2.Sc3#
    • 1...Rxg2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Rc4
      • 2.bxc4#
    • 1...Rc6
      • 2.Qd3#
    • 1...g4
      • 2.Sf4#
    • 1...c6
      • 2.Qd3#
    • 1...f6
      • 2.Qe6#
  • Tries
    • 1.Qb5+?
      • 1...Rc5
        • 2.Qd7#
        • 2.Qxc5#
      • 1...c5
        • 2.Qd7#
      • 1...Kd6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Re5#
      • 1...Re2
        • 2.Sc3#
      • 1...Rc5
        • 2.Se3#
      • 1...c5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(b);N_GUARD::S(E)
    • R(b);N_GUARD,XS(C)::S(E)
    • R(b);N_GUARD::S(E),XR(b)
    • R(b);OGATE::P(D),XR(b)
    • R(b);SBLOCK::QAR2(F)
    • P(e);N_GUARD::S(C)
    • P(f);SBLOCK::QAR2(F)
    • P(g);N_GUARD::QAB1(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(F);
    • Threat
      • R1(B)
    • Vars
      • R(b);N_GUARD::S(E)
      • R(b);::S(C)
      • P(f);N_GUARD,SBLOCK::S(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).