MESON Chess Problem Database

Problem Display
PID: 87459 (K7/1p6/pk1P4/n1p1N3/3n1Q2/2N5/5B2/3b2b1 w - - 0 1)

Caliman, Georghe

Buletin Problemistic, 1973

K7/1p6/pk1P4/n1p1N3/3n1Q2/2N5/5B2/3b2b1

#2

6 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qb4#
    • 1...Sdb3
      • 2.Qb4#
    • 1...Sf3
      • 2.Qb4#
    • 1...Sb5
      • 2.Sd5#
    • 1...Sf5
      • 2.Qb4#
    • 1...Sdc6
      • 2.Sd7#
    • 1...Se6
      • 2.Qb4#
    • 1...Sac6
      • 2.Sc4#
    • 1...c4
      • 2.Qxd4#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qc7#
      • 1...Sb5
        • 2.Sd5#
      • 1...Se6!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qd8#
      • 1...Sac6
        • 2.Sc4#
      • 1...c4
        • 2.Qxd4#
      • 1...Se6
        • 2.Qb4#
      • 1...Sb5
        • 2.Sd5#
      • 1...Sdc6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(c);OGATE,P_SPINP(e)::QAR2(C)
    • S(c);P_SPINP(e),SBLOCK::S(B)
    • S(c);P_SPINP(e),SBLOCK::S(D)
    • S(d);N_GUARD,SBLOCK::S(D)
    • P(e);OGATEB,P_SPINS(c)::QAB(C),XS(c)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • S(c);P_SPINP(e),SBLOCK::S(B)
      • Refutation
        • S(c);P_SPINP(e)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • S(d);N_GUARD,SBLOCK::S(D)
      • P(e);OGATEB,P_SPINS(c)::QAB(C),XS(c)
      • S(c);OGATE,P_SPINP(e)::QAR2(C)
      • S(c);P_SPINP(e),SBLOCK::S(B)
      • S(c);P_SPINP(e),SBLOCK::S(D)
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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).