MESON Chess Problem Database

Problem Display
PID: 104581 (8/1p6/4K3/4B3/1p2k1p1/1p1ppp1p/8/3Q4 w - - 0 1)

Saletic, Slobodan

Vratnica-64, 2006

8/1p6/4K3/4B3/1p2k1p1/1p1ppp1p/8/3Q4

#2

3 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qb1#
    • 1...f2
      • 2.Qxg4#
      • 2.Qh1#
  • Tries
    • 1.Qxb3?
      • threat
        • 2.Qc4#
        • 2.Qd5#
        • 2.Qxb4#
      • 1...f2
        • 2.Qd5#
      • 1...d2
        • 2.Qc2#
        • 2.Qc4#
        • 2.Qd5#
        • 2.Qb1#
      • 1...b5
        • 2.Qd5#
        • 2.Qxb4#
      • 1...e2!
    • 1.Qa1?
      • threat
        • 2.Qd4#
      • 1...f2
        • 2.Qh1#
      • 1...b2!
    • 1.Qe1?
      • threat
        • 2.Qxb4#
      • 1...d2
        • 2.Qb1#
      • 1...f2
        • 2.Qh1#
      • 1...e2!
    • 1.Qg1?
      • threat
        • 2.Qxg4#
      • 1...d2
        • 2.Qb1#
      • 1...e2
        • 2.Qd4#
      • 1...g3!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qc4#
      • 1...f2
        • 2.Qh1#
      • 1...e2
        • 2.Qf4#
      • 1...b5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(d);::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(d);OGATEB::QAB(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);P_PINP(c)
      • Threat
        • QAR(A),XP(f)
      • Vars
        • P(b);OGATEB::QAB(A)
        • P(d);OGATEB::QAB(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(h)
      • Vars
        • P(b);OGATEB::QAB(A)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(h);
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • P(d);OGATEB::QAB(A)
      • P(c);OGATE::QAR1(A)
      • P(i);N_GUARD::QAB(A)
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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).