MESON Chess Problem Database

Problem Display
PID: 5966 (8/BK1p4/p4p1q/2R1NB2/1p1k2p1/2N5/n3nPp1/rrb1Rb2 w - - 0 1)

Hartong, Jan

1st Prize, BCPS 001. Ty., 1926

8/BK1p4/p4p1q/2R1NB2/1p1k2p1/2N5/n3nPp1/rrb1Rb2

#2

8 + 14

56 The Problemist 1927
3174 The Two-move Chess Problem Tradition and Development 1966
3098 FIDE Album (1914-1944) (I) 1971
102 Probleemblad 1975
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Saxc3
      • 2.Ra5#
      • 2.Rb5#
    • 1...Sg1
      • 2.Re4#
      • 2.Rc4#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...Sexc3
      • 2.Ra5#
      • 2.Rb5#
    • 1...Sg3
      • 2.Rc4#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...Sf4
      • 2.Re4#
      • 2.Rc4#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...bxc3+
      • 2.Rb5#
    • 1...g3
      • 2.Sf3#
    • 1...a5
      • 2.Sb5#
    • 1...fxe5
      • 2.Rc6#
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
  • Keys
    • 1.Kxa6!
      • threat
        • 2.Sb5#
      • 1...Saxc3+
        • 2.Ra5#
      • 1...Sg1+
        • 2.Rc4#
      • 1...Sexc3+
        • 2.Rb5#
      • 1...Sg3+
        • 2.Rc4#
      • 1...Sf4+
        • 2.Rc4#
      • 1...fxe5+
        • 2.Rc6#
      • 1...bxc3
        • 2.Rb5#
      • 1...d5
        • 2.Sc6#

This anticipates 214813(2020)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • P(h);CHECK,SBLOCK,XS(C)::B(G)+R(D)
    • P(j);N_GUARD::S(E)
    • P(k);N_GUARD::S(C)
    • P(l);SBLOCK,XS(E)::B(G)+R(D)
    • P(n);N_GUARD::S(E)
  • Actual
    • K(H);S_FLIGHT,XP(k)
    • Threat
      • S(C)
    • Vars
      • S(e);CHECK,SBLOCK,XS(C)::B(G)+R(D)
      • S(f);CHECK::B(G)+R(D),DCHECK
      • S(f);CHECK,SBLOCK,XS(C)::B(G)+R(D)
      • P(l);CHECK,SBLOCK,XS(E)::B(G)+R(D)
      • P(h);SBLOCK,XS(C)::B(G)+R(D)
      • P(n);N_GUARD::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).