MESON Chess Problem Database

Problem Display
PID: 2385 (7K/1PPk4/3NN3/3n1P2/8/8/8/8 w - - 0 1)

Guinet, Leon

L'Echiquier d'Aix, 1879

7K/1PPk4/3NN3/3n1P2/8/8/8/8

#2

6 + 2

1829 The Theory of Pawn Promotion 1912
797 Bulletin de la FFE 1924
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1951
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.c8Q+?
      • 1...Ke7
        • 2.Qd8#
      • 1...Kxd6!
  • Keys
    • 1.c8S!
      • threat
        • 2.b8S#
      • 1...Kc6
        • 2.b8S#

This anticipates 4603(1882), 23007(1930)

There are these versions: 4556, 4557

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(E)
      • Refutation
        • K(b);P-FLIGHT,XS(B)
  • Actual
    • P(E);
    • Threat
      • P=S
    • Vars
      • K(b);S_FLIGHT::P=S
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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).