MESON Chess Problem Database

Problem Display
PID: 101415 (1n6/bp6/Nk3P2/1P5R/8/8/Q4K2/1R6 w - - 0 1)

Pape, Edouard

Good Companions, 1920

1n6/bp6/Nk3P2/1P5R/8/8/Q4K2/1R6

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qc7#
      • 1...Ka5+
        • 2.b6#
      • 1...Sxa6
        • 2.bxa6#
      • 1...bxa6
        • 2.bxa6#
      • 1...Sc6
        • 2.bxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);CHECK,OGATE,S_FLIGHT::R(E)+P(D)
      • S(d);OGATE,XS(F)::R(A)+P(D),XS(d)
      • P(c);OGATE,XS(F)::R(A)+P(D),XP(c)
      • S(d);OGATE::R(A)+P(D),XS(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).