MESON Chess Problem Database

Problem Display
PID: 129712 (7r/6B1/3P1P2/2P4k/4B3/5PPN/3KQn2/6br w - - 0 1)

Dehler, Ernst Georg

Casopis ceskoslovenskych sachistu, 1912

7r/6B1/3P1P2/2P4k/4B3/5PPN/3KQn2/6br

#2

10 + 5

6490 yacpdb 2009
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.f4#
    • 1...Sd3
      • 2.f4#
    • 1...Sxh3
      • 2.f4#
    • 1...Sg4
      • 2.fxg4#
  • Tries
    • 1.Sxf2?
      • threat
        • 2.f4#
      • 1...Kg5
        • 2.f4#
      • 1...Rh4!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Qe5#
      • 1...Se4+
        • 2.fxe4#
      • 1...Rxh7
        • 2.Qe8#
      • 1...Sxh3
        • 2.f4#
      • 1...Re8
        • 2.Qxe8#
      • 1...Sd3
        • 2.f4#
      • 1...Sg4
        • 2.fxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAB(B)+P(C)
    • S(c);N_GUARD,XS(E)::QAB(B)+P(C)
    • S(c);OGATE::P(C),XS(c)
  • Tries
    • Try
      • S(E);XS(c)
      • Threat
        • QAB(B)+P(C)
      • Vars
        • K(d);P-FLIGHT::P(C)
      • Refutation
        • R(b);
  • Actual
    • B(F);
    • Threat
      • QAR(B)
    • Vars
      • S(c);CHECK,OGATE::QAB(B)+P(C),XS(c)
      • R(e);N_GUARD,XB(F)::QAB(B)
      • S(c);N_GUARD,XS(E)::QAB(B)+P(C)
      • R(e);N_GUARD::QAB(B),XR(e)
      • S(c);N_GUARD::QAB(B)+P(C)
      • S(c);OGATE::P(C),XS(c)
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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).