MESON Chess Problem Database

Problem Display
PID: 17023 (1b5Q/N2n1p2/3p4/2pk1BR1/4p1n1/N1K5/8/8 w - - 0 1)

ten Cate, Pieter

Probleemblad, 1945

1b5Q/N2n1p2/3p4/2pk1BR1/4p1n1/N1K5/8/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sgf6
      • 2.Bxd7#
    • 1...Sdf6
      • 2.Bxg4#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Bg6+?
      • 1...Sge5
        • 2.Bxf7#
      • 1...Sde5
        • 2.Bxf7#
      • 1...f5
        • 2.Bf7#
      • 1...Ke6!
  • Keys
    • 1.Sc4!
      • 1...Bxa7
        • 2.Qa8#
      • 1...Bc7
        • 2.Qa8#
      • 1...Sf2
        • 2.Se3#
      • 1...Sh2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sge5
        • 2.Se3#
      • 1...Sgf6
        • 2.Bxd7#
      • 1...Sh6
        • 2.Se3#
      • 1...Sde5
        • 2.Sb6#
      • 1...Sb6
        • 2.Sxb6#
      • 1...Sdf6
        • 2.Bxg4#
      • 1...Sf8
        • 2.Sb6#
      • 1...e3
        • 2.Qh1#
      • 1...f6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD,S_CUTP(g)::R(D)+B(C),XS(f)
    • S(f);N_GUARD,S_CUTP(g)::R(D)+B(C),XS(b)
    • P(c);N_GUARD::QAR1(F)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • S(b);P_SPINS(b)::B(C),XP(g)
        • S(f);P_SPINS(f)::B(C),XP(g)
        • P(g);P_SPINP(g)::B(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(A);
    • Vars
      • B(h);OGATE,XS(E)::QAB(F)
      • B(h);OGATE::QAB(F)
      • S(b);N_GUARD::S(A)
      • S(b);N_GUARD::S(A),XS(b)
      • S(b);N_GUARD,S_CUTP(g)::R(D)+B(C),XS(f)
      • S(f);N_GUARD::S(A)
      • S(f);N_GUARD::S(A),XS(f)
      • S(f);N_GUARD,S_CUTP(g)::R(D)+B(C),XS(b)
      • P(a);OGATEB::QAB(F)
      • P(g);OGATEB::QAB(F)
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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).