MESON Chess Problem Database

Problem Display
PID: 23682 (8/6N1/2b5/5Bp1/4p2k/3pK1p1/1Q6/6N1 w - - 0 1)

Nesic, Milivoj S

1st Place, Senta-Skorenovac, 1964

8/6N1/2b5/5Bp1/4p2k/3pK1p1/1Q6/6N1

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.Qf2#
    • 1...g4
      • 2.Qf6#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Sf3#
      • 1...g4
        • 2.Qf6#
        • 2.Qd8#
      • 1...g2!
    • 1.Qe2?
      • threat
        • 2.Qg4#
        • 2.Qh5#
      • 1...g2
        • 2.Qg4#
        • 2.Qe1#
        • 2.Qf2#
      • 1...g4
        • 2.Qxg4#
      • 1...Be8
        • 2.Qg4#
      • 1...dxe2!
    • 1.Qb8?
      • threat
        • 2.Qh8#
      • 1...g4
        • 2.Qd8#
      • 1...g2
        • 2.Qh2#
      • 1...Be8!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Sf3#
      • 1...g2
        • 2.Qe1#
      • 1...g4
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(B)
    • P(e);OGATEB::QAB(B)
  • Tries
    • Try
      • Q(B);P_PINP(c)
      • Threat
        • S(A)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAR1(B),XP(e)
        • B(f);::QAR1(B)
      • Refutation
        • P(a);XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • P(e);OGATEB::QAB(B)
        • P(b);OGATE::QAR2(B)
      • Refutation
        • B(f);
  • Actual
    • Q(B);P_PINP(c)
    • Threat
      • S(A)
    • Vars
      • P(b);OGATEB::QAB(B)
      • P(e);N_SPINP(c),OGATEB::QAB(B)
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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).