Problem Display
PID: 131912 (8/3p2p1/4N1K1/2Bpk3/5N2/2P2P2/8/8 w - - 0 1)

Leopold, Dr Rudolf L

Deutsche Schachzeitung, 1916

8/3p2p1/4N1K1/2Bpk3/5N2/2P2P2/8/8

#2

6 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...d4
      • 2.cxd4#
    • 1...dxe6
      • 2.Sd3#
    • 1...d6
      • 2.Bd4#
  • Tries
    • 1.Kg5?
      • 1...dxe6
        • 2.Sd3#
        • 2.Sg6#
      • 1...d4
        • 2.cxd4#
      • 1...d6
        • 2.Bd4#
      • 1...g6!
    • 1.Ba3?
      • 1...dxe6
        • 2.Sd3#
      • 1...d4
        • 2.cxd4#
      • 1...d6!
    • 1.Bb4?
      • 1...dxe6
        • 2.Sd3#
      • 1...d4
        • 2.cxd4#
      • 1...d6!
    • 1.Be7?
      • 1...dxe6
        • 2.Sd3#
      • 1...d4
        • 2.cxd4#
      • 1...d6!
  • Keys
    • 1.Bf8!
      • 1...dxe6
        • 2.Sd3#
      • 1...d4
        • 2.cxd4#
      • 1...d6
        • 2.Bxg7#

FEATURES


  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATE::P(A),XP(a)
    • P(c);SBLOCK,XS(E)::S(C)
    • P(c);SBLOCK::B(D)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • P(a);OGATE::P(A),XP(a)
        • P(c);SBLOCK::B(D)
      • Refutation
        • P(d);
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK,XS(E)::S(C)
        • P(a);OGATE::P(A),XP(a)
      • Refutation
        • P(c);
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK,XS(E)::S(C)
        • P(a);OGATE::P(A),XP(a)
      • Refutation
        • P(c);
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK,XS(E)::S(C)
        • P(a);OGATE::P(A),XP(a)
      • Refutation
        • P(c);
  • Actual
    • B(D);
    • Vars
      • P(c);SBLOCK,XS(E)::S(C)
      • P(a);OGATE::P(A),XP(a)
      • P(c);SBLOCK::B(D),XP(d)


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).