MESON Chess Problem Database

Problem Display
PID: 232561 (3n2Bn/N4p1P/1N1p2p1/3Pk1r1/5Rb1/5Pp1/3B4/6KQ w - - 0 1)

Gruber, Lutz-Dieter

Freie Presse, 1992

3n2Bn/N4p1P/1N1p2p1/3Pk1r1/5Rb1/5Pp1/3B4/6KQ

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Sxc6#
    • 1...Se6
      • 2.Sc6#
    • 1...Sb7
      • 2.Sc6#
    • 1...f5
      • 2.Sd7#
    • 1...f6
      • 2.Sc4#
  • Tries
    • 1.fxg4?
      • threat
        • 2.Sc4#
        • 2.Sd7#
        • 2.Qe4#
      • 1...Rf5
        • 2.Sd7#
      • 1...f5
        • 2.Sd7#
      • 1...g2!
  • Keys
    • 1.Qh4!
      • 1...Bxf3
        • 2.Bc3#
      • 1...Bf5
        • 2.Bc3#
      • 1...f5
        • 2.Sd7#
      • 1...Rf5
        • 2.Re4#
      • 1...Rh5
        • 2.Qf6#
      • 1...Bh3
        • 2.Bc3#
      • 1...Bh5
        • 2.Bc3#
      • 1...Be6
        • 2.Bc3#
      • 1...Bd7
        • 2.Bc3#
      • 1...Bc8
        • 2.Bc3#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Se6
        • 2.Sc6#
      • 1...Sb7
        • 2.Sc6#
      • 1...g2
        • 2.Qe1#
      • 1...f6
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::S(H),XS(h)
    • S(h);N_GUARD::S(H)
    • P(g);S_CUTB(b)::S(G)
    • P(g);::S(G)
  • Tries
    • Try
      • P(D);XB(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(d);::S(G)
        • P(g);::S(G)
      • Refutation
        • P(a);
  • Actual
    • Q(B);
    • Vars
      • B(b);XP(D)::B(C)
      • B(b);::B(C)
      • P(g);S_CUTB(b)::S(G)
      • R(d);SBLOCK::R1(E)
      • R(d);OGATE::QAB1(B)
      • S(h);N_GUARD::S(H),XS(h)
      • S(h);N_GUARD::S(H)
      • P(a);OGATE::QAR(B)
      • P(g);::S(G)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).