MESON Chess Problem Database

Problem Display
PID: 198765 (1b2R3/3p1kNp/KQ4rP/7B/8/4N3/8/8 w - - 0 1)

Redaelli, Riccardo

6th HM., L'Illustrazione Italiana, 1921

1b2R3/3p1kNp/KQ4rP/7B/8/4N3/8/8

#2

7 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qe6#
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qf6#
      • 1...Be5
        • 2.Sxe5#
      • 1...Bd6
        • 2.Qb3#
      • 1...d6
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD::QAB1(D)
  • Actual
    • S(A);
    • Threat
      • QAR1(D)
    • Vars
      • B(e);N_GUARD::S(A),XB(e)
      • B(e);N_PINQ(D)::QAB(D)
      • P(b);N_PINQ(D)::QAR(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).