MESON Chess Problem Database

Problem Display
PID: 106496 (8/2N1Q3/1Np5/8/p2k4/P1p5/2K5/8 w - - 0 1)

Bata, Lorinc

Praca, 1952

8/2N1Q3/1Np5/8/p2k4/P1p5/2K5/8

#2

5 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sb5#
  • Tries
    • 1.Sxa4?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qh4#
        • 2.Qc5#
        • 2.Qe4#
      • 1...c5!
    • 1.Sd7?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qh4#
        • 2.Qc5#
        • 2.Qe4#
      • 1...c5!
    • 1.Sba8?
      • 1...Kc4
        • 2.Qb4#
      • 1...c5!
    • 1.Sc8?
      • 1...Kc4
        • 2.Qb4#
      • 1...c5!
    • 1.Qg5?
      • 1...c5
        • 2.Qf4#
      • 1...Ke4!
    • 1.Qe4+?
      • 1...Kc5
        • 2.Qb4#
      • 1...Kxe4!
    • 1.Qe6?
      • 1...c5
        • 2.Sb5#
      • 1...Kc5!
    • 1.Qe8?
      • 1...c5
        • 2.Sb5#
      • 1...Kc5!
  • Keys
    • 1.Sc4!
      • 1...Kxc4
        • 2.Qb4#
      • 1...c5
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::S(D)
  • Tries
    • Try
      • S(C);XP(b)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Vars
        • P(d);SBLOCK::QAR2(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Vars
        • P(d);N_GUARD,SBLOCK::S(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(d);N_GUARD,SBLOCK::S(D)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XS(C)::QAR1(E)
      • P(d);SBLOCK::QAR(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).