MESON Chess Problem Database

Problem Display
PID: 193479 (8/2N1n3/8/2p5/3k1B2/5Q2/8/7K w - - 0 1)

Decker, Adolfph L

Deutsche Schachblatter, 1915

8/2N1n3/8/2p5/3k1B2/5Q2/8/7K

#2

4 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Se6#
      • 2.Qe3#
  • Tries
    • 1.Be5+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxe5!
  • Keys
    • 1.Bd2!
      • 1...Kc4
        • 2.Qc3#
      • 1...Ke5
        • 2.Qf4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sf5
        • 2.Qd5#
      • 1...Sc6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...Sc8
        • 2.Qd5#
      • 1...Sg8
        • 2.Qd5#
      • 1...c4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
  • Actual
    • B(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • S(c);N_GUARD::QAR1(B),XS(c)
      • S(c);N_GUARD::QAR1(B)
      • P(b);SBLOCK::QAB1(B)
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).