MESON Chess Problem Database

Problem Display
PID: 158454 (5R2/Q7/5B2/8/4pk2/K6P/2P1r3/5n2 w - - 0 1)

Pradignat, Emile Leonard

British Chess Magazine 13. Ty., 1906-1907

5R2/Q7/5B2/8/4pk2/K6P/2P1r3/5n2

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qf2#
    • 1...Rf2
      • 2.Qxf2#
  • Keys
    • 1.Qg7!
      • threat
        • 2.Bd4#
      • 1...Re3+
        • 2.Bc3#
      • 1...Ke3
        • 2.Bg5#
      • 1...Kf3
        • 2.Bd4#
      • 1...Kf5
        • 2.Qg4#
      • 1...Se3
        • 2.Be5#
      • 1...Sg3
        • 2.Bg5#
      • 1...e3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::QAR2(E)
    • R(b);N_GUARD::QAR2(E),XR(b)
  • Actual
    • Q(E);
    • Threat
      • R(F)+B(D)
    • Vars
      • R(b);CHECK,SBLOCK::R(F)+B(D)
      • K(d);S_FLIGHT::B(D)
      • K(d);P-FLIGHT::R(F)+B(D)
      • K(d);P-FLIGHT::QAB1(E)
      • S(a);SBLOCK::R(F)+B(D),DCHECK
      • P(c);SBLOCK::QAR1(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).