MESON Chess Problem Database

Problem Display
PID: 203593 (2B3n1/3N1p2/4k3/2Kp1N2/3P2P1/2P5/8/8 w - - 0 1)

Hertmann, Sandor

Nepszava, 1924

2B3n1/3N1p2/4k3/2Kp1N2/3P2P1/2P5/8/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Sf8#
    • 1...Se7
      • 2.Sg7#
    • 1...f6
      • 2.Se5#
  • Tries
    • 1.g5?
      • threat
        • 2.Se5#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sb8#
        • 2.Sf8#
      • 1...f6
        • 2.Se5#
      • 1...Sf6
        • 2.Sxf6#
        • 2.Sf8#
      • 1...Se7
        • 2.Sg7#
        • 2.Sf8#
      • 1...Kxf5!
  • Keys
    • 1.c4!
      • threat
        • 2.cxd5#
      • 1...dxc4
        • 2.d5#
      • 1...f6
        • 2.Se5#
      • 1...Sf6
        • 2.Sf8#
      • 1...Se7
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::B(G)+S(F),DCHECK
    • S(d);SBLOCK::S(E)
    • P(c);SBLOCK::B(G)+S(F)
  • Tries
    • Try
      • P(C);
      • Threat
        • DUALS(5)
      • Vars
        • P(c);::B(G)+S(F)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
  • Actual
    • P(A);
    • Threat
      • P(A),XP(a)
    • Vars
      • P(a);OGATE,XP(A)::P(B)
      • P(c);SBLOCK::B(G)+S(F)
      • S(d);SBLOCK::B(G)+S(F),DCHECK
      • S(d);SBLOCK::S(E)
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).