MESON Chess Problem Database

Problem Display
PID: 107571 (4k2r/pK1ppNp1/p6P/5Q2/2B5/B7/8/8 w - - 0 1)

Salai, Ladislav

Sachova skladba, 1995

4k2r/pK1ppNp1/p6P/5Q2/2B5/B7/8/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Sd6#
    • 1...d6
      • 2.Qc8#
    • 1...e5
      • 2.Qxe5#
  • Tries
    • 1.Sd6+?
      • 1...Kd8
        • 2.Qa5#
      • 1...exd6!
    • 1.Qxd7+?
      • 1...Kf8
        • 2.Qc8#
        • 2.Qd8#
      • 1...Kxd7!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxe7#
        • 2.Qc8#
      • 1...Kf8
        • 2.Qc8#
      • 1...d5
        • 2.Qxe7#
      • 1...d6
        • 2.Qc8#
      • 1...e5
        • 2.Qe7#
        • 2.Qxe5#
        • 2.Qc8#
      • 1...e6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(f);P-FLIGHT,P_SPINP(d)::QAR(C)+S(F)
    • P(c);OGATE::QAR2(C)
    • P(d);OGATEB::QAR(C),XP(d)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB(C)
      • Refutation
        • P(d);XS(F)
    • Try
      • Q(C);CHECK,XP(c)
      • Refutation
        • K(f);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);P-FLIGHT,P_SPINP(d)::QAR(C)
      • P(c);::QAR1(C),XP(d)
      • P(c);::QAR2(C)
      • P(d);::QAR1(C)
HTML5 logo

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).