MESON Chess Problem Database

Problem Display
PID: 140241 (3n4/6n1/3P1kNN/4Rp1P/7K/1bR3pp/7r/B4Qb1 w - - 0 1)

Bakker, Peter Arie

Comm., 05. Kwik-Toernooi, 1975

3n4/6n1/3P1kNN/4Rp1P/7K/1bR3pp/7r/B4Qb1

#2

9 + 9

102 Probleemblad 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Sg4#
    • 1...Sf7
      • 2.Sg4#
      • 2.Sg8#
  • Tries
    • 1.Re7?
      • threat
        • 2.Sg4#
      • 1...Sxh5
        • 2.Qxf5#
      • 1...Rf2
        • 2.Rc2#
      • 1...Bf2
        • 2.Rce3#
      • 1...Bd1
        • 2.Sg8#
      • 1...f4!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Sg4#
      • 1...Sxh5
        • 2.Qxf5#
      • 1...Rf2
        • 2.Re2#
      • 1...Bf2
        • 2.Re3#
      • 1...Bd1
        • 2.Sg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(c);SBLOCK::S(I)
  • Tries
    • Try
      • R(E);
      • Threat
        • S(I)
      • Vars
        • S(h);N_GUARD,XP(F)::QAR1(B),XP(f)
        • R(b);N_SPINP(f),S_CUTB(a)::B(A)+R(C)
        • B(a);N_SPINP(f),S_CUTR(b)::B(A)+R(C)
        • B(c);N_GUARD::S(I)
      • Refutation
        • P(f);
  • Actual
    • R(C);
    • Threat
      • S(I)
    • Vars
      • S(h);N_GUARD,XP(F)::QAR1(B),XP(f)
      • R(b);N_SPINP(f),S_CUTB(a)::B(A)+R(E)
      • B(a);N_SPINP(f),S_CUTR(b)::B(A)+R(E)
      • B(c);N_GUARD::S(I)
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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).