MESON Chess Problem Database

Problem Display
PID: 224465 (3bbkq1/4pnR1/2P1Q1K1/8/3N4/2B5/8/8 w - - 0 1)

Siedenschnur, Paul

Brooklyn Chess Chronicle, 1887

3bbkq1/4pnR1/2P1Q1K1/8/3N4/2B5/8/8

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Qxe7+!
      • 1...Kxe7
        • 2.Bb4#
      • 1...Bxe7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);CHECK,XP(a)
    • Vars
      • K(e);P_SPINS(b),S_FLIGHT,XQ(D)::B(A)
      • B(c);SBLOCK,XQ(D)::S(B)
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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).