MESON Chess Problem Database

Problem Display
PID: 47241 (8/4N3/6n1/5q2/2P1k1pR/R2N4/5pP1/2BQ1K2 w - - 0 1)

Apro, Laszlo

Themes-64, 1956

8/4N3/6n1/5q2/2P1k1pR/R2N4/5pP1/2BQ1K2

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Sxf2#
    • 1...Se5
      • 2.Sc5#
  • Keys
    • 1.Bb2!
      • threat
        • 2.Qe2#
      • 1...Ke3
        • 2.Qe2#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Qf4
        • 2.Sc5#
      • 1...Qc5
        • 2.Qf3#
      • 1...Qg5
        • 2.Qf3#
      • 1...Sf4
        • 2.Sxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • Q(d);N_GUARD,SBLOCK::S(F),XP(a)
    • S(e);SBLOCK,S_CUTQ(d)::S(F)
  • Actual
    • B(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);N_SPINP(c),P-FLIGHT::QAR1(B)
      • Q(d);N_GUARD::QAB1(B),XQ(d)
      • Q(d);N_GUARD,N_SPINP(c),SBLOCK::S(F)
      • Q(d);N_GUARD::QAB1(B)
      • S(e);N_SPINP(c),SBLOCK,S_CUTQ(d)::S(F),XP(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).