MESON Chess Problem Database

Problem Display
PID: 146136 (b3BN1r/2ppbq1n/3p1k1P/KQ3Nr1/7B/P7/8/4R3 w - - 0 1)

Gabor, Nicholas

La Settimana Enigmistica, 1932

(First published on Sat Sep 10 1932)

b3BN1r/2ppbq1n/3p1k1P/KQ3Nr1/7B/P7/8/4R3

#2

9 + 10

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Sxd7#
    • 1...Qb3
      • 2.Sxd7#
    • 1...Qc4
      • 2.Sxd7#
    • 1...Qh5
      • 2.Sxd7#
    • 1...Qg6
      • 2.Sxd7#
    • 1...Qg8
      • 2.Sxd7#
    • 1...Qg7
      • 2.Sxd7#
  • Tries
    • 1.Sg7?
      • threat
        • 2.Qf5#
      • 1...Qxg7
        • 2.Sxd7#
      • 1...Qd5
        • 2.Sxd7#
      • 1...Qe6
        • 2.Sh5#
      • 1...Qg6
        • 2.Sxd7#
      • 1...Bd5
        • 2.Qb2#
      • 1...d5
        • 2.Qf1#
      • 1...c5
        • 2.Qb2#
      • 1...Be4!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Qf5#
      • 1...Qd5
        • 2.Sxd7#
      • 1...Qe6
        • 2.Sh5#
      • 1...Qg6
        • 2.Sxd7#
      • 1...Be4
        • 2.Sxe4#
      • 1...Bd5
        • 2.Qb2#
      • 1...d5
        • 2.Qf1#
      • 1...c5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 6
  • Sets
    • Q(g);P_PINP(B)::S(I),XP(e)
    • Q(g);::S(I),XP(e)
  • Tries
    • Try
      • S(F);P_SPINQ(E)
      • Threat
        • QAR1(E)
      • Vars
        • Q(g);XS(F)::S(I),XP(e)
        • Q(g);::S(I),XP(e)
        • Q(g);N_GUARD::S(F)
        • B(i);N_PINQ(E)::QAB(E)
        • P(b);N_PINQ(E)::QAR(E)
        • P(d);N_PINQ(E)::QAB(E)
      • Refutation
        • B(i);
  • Actual
    • S(F);P_SPINQ(E)
    • Threat
      • QAR1(E)
    • Vars
      • Q(g);::S(I),XP(e)
      • Q(g);N_GUARD::S(F)
      • B(i);N_GUARD::S(F),XB(i)
      • B(i);N_PINQ(E)::QAB(E)
      • P(b);N_PINQ(E)::QAR(E)
      • P(d);N_PINQ(E)::QAB(E)
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).