MESON Chess Problem Database

Problem Display
PID: 190127 (8/5K2/5N2/3ppk2/2B2p1P/n1P2RnP/6P1/3b4 w - - 0 1)

Leopold, Dr Rudolf L

Magyar Sakkvilag, 1913

8/5K2/5N2/3ppk2/2B2p1P/n1P2RnP/6P1/3b4

#2

8 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.g4#
    • 1...Sh1
      • 2.g4#
    • 1...Se2
      • 2.g4#
    • 1...Se4
      • 2.g4#
    • 1...Sh5
      • 2.g4#
    • 1...d4
      • 2.Be6#
  • Tries
    • 1.Bd3+?
      • 1...Se4
        • 2.g4#
      • 1...e4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sxg3#
        • 2.Sd6#
      • 1...Kxe4
        • 2.Bd3#
      • 1...Bxf3
        • 2.Sd6#
      • 1...Sxc4
        • 2.Sxg3#
      • 1...Sxe4
        • 2.g4#
      • 1...dxe4
        • 2.Be6#
      • 1...Sb5
        • 2.Sxg3#
      • 1...Sf1
        • 2.Sd6#
      • 1...Sh1
        • 2.Sd6#
      • 1...Se2
        • 2.Sd6#
      • 1...Sh5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(c);OGATE::P(A)
    • P(e);OGATE::B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • S(c);OGATE,P_SPINS(c)::P(A)
      • Refutation
        • P(f);N_SPINP(d),P_SPINP(f)
  • Actual
    • S(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(g);N_SPINP(d),OGATEB,S_FLIGHT,XS(G)::B(E)
      • B(a);N_SPINP(d),XR(C)::S(G)
      • S(b);XB(E)::S(G),XS(c)
      • S(c);OGATE,SBLOCK,XS(G)::P(A)
      • P(e);OGATE,SBLOCK,XS(G)::B(E)
      • S(b);::S(G),XS(c)
      • S(c);::S(G)
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).