MESON Chess Problem Database

Problem Display
PID: 172112 (8/Kp5r/1Nk1bQ1q/6nr/2p1p3/3N3n/5p1B/1R2b3 w - - 0 1)

Apro, Laszlo

3rd Comm., Problemas, 1975

8/Kp5r/1Nk1bQ1q/6nr/2p1p3/3N3n/5p1B/1R2b3

#2

6 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qd6#
        • 2.Qb5#
        • 2.Qc5#
      • 1...cxd3
        • 2.Qd6#
        • 2.Qb5#
      • 1...exd3
        • 2.Qd6#
        • 2.Qb5#
      • 1...Qf8
        • 2.Qb5#
      • 1...Rd7
        • 2.Qb5#
        • 2.Qc5#
      • 1...Bb4
        • 2.Sxb4#
      • 1...Bg4
        • 2.Qb5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qb5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Bd7
        • 2.Qc7#
        • 2.Qb5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Bf7
        • 2.Qc7#
        • 2.Qb5#
        • 2.Qc5#
      • 1...Bc8
        • 2.Qb5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Bg8
        • 2.Qb5#
        • 2.Qc5#
      • 1...Sf4
        • 2.Qc5#
      • 1...Sf3
        • 2.Qd6#
      • 1...Sf7
        • 2.Qc7#

This is a version of 172031

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(E);N_PINB(i)
    • Threat
      • DUALS(3)
    • Vars
      • Q(j);::QAB1(E)
      • B(a);N_GUARD::S(C),XB(a)
      • B(i);N_GUARD::QAB1(E),XB(i)
      • S(c);::QAR1(E)
      • S(f);::QAR1(E)
      • S(f);S_CUTR(l)::QAR1(E)
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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).