MESON Chess Problem Database

Problem Display
PID: 212603 (3bB3/3pp3/1p1N1p2/1K1k2P1/3Np3/2B1P1Q1/8/8 w - - 0 1)

Labai, Zoltan

2nd Prize, Sachova skladba, 2019

3bB3/3pp3/1p1N1p2/1K1k2P1/3Np3/2B1P1Q1/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...exd6
      • 2.Bf7#
  • Tries
    • 1.Sc4?
      • 1...fxg5
        • 2.Qe5#
      • 1...f5
        • 2.Qe5#
      • 1...d6
        • 2.Bc6#
      • 1...e5
        • 2.Bf7#
      • 1...e6
        • 2.Qd6#
      • 1...Bc7!
    • 1.S6f5?
      • 1...Bc7
        • 2.Sxe7#
      • 1...d6
        • 2.Bc6#
      • 1...e5
        • 2.Bf7#
      • 1...e6
        • 2.Qd6#
      • 1...fxg5!
    • 1.Bxd7?
      • threat
        • 2.Bc6#
        • 2.Be6#
      • 1...e6
        • 2.Bc6#
        • 2.Bxe6#
      • 1...e5!
  • Keys
    • 1.Se6!
      • 1...Kxe6
        • 2.Bf7#
      • 1...fxg5
        • 2.Qe5#
      • 1...dxe6
        • 2.Bc6#
      • 1...exd6
        • 2.Sf4#
      • 1...Bc7
        • 2.Sxc7#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD,XS(G)::B(H)
  • Tries
    • Try
      • S(G);
      • Vars
        • P(d);N_GUARD,XP(F)::QAR1(C)
        • P(d);N_GUARD::QAR1(C)
        • P(e);OGATE::B(H)
        • P(f);N_GUARD::B(H)
        • P(f);N_GUARD::QAR1(C)
      • Refutation
        • B(g);
    • Try
      • S(G);
      • Vars
        • B(g);N_GUARD::S(G),XP(f)
        • P(e);OGATE::B(H)
        • P(f);N_GUARD::B(H)
        • P(f);N_GUARD::QAR1(C)
      • Refutation
        • P(d);XP(F)
    • Try
      • B(H);XP(e)
      • Threat
        • DUALS(2)
      • Refutation
        • P(f);
  • Actual
    • S(D);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(D)::B(H)
      • P(d);N_GUARD,XP(F)::QAR1(C)
      • P(e);OGATE,SBLOCK,XS(D)::B(H)
      • P(f);SBLOCK,XS(G)::S(D)
      • B(g);N_GUARD::S(D),XB(g)
      • P(d);N_GUARD::QAR1(C)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).