MESON Chess Problem Database

Problem Display
PID: 7737 (R4n2/4kN2/4P3/2P3P1/2Kn3N/4R3/8/8 w - - 0 1)

Retter, Yosef

1st Prize, Koldijk-75 JT, 1993

R4n2/4kN2/4P3/2P3P1/2Kn3N/4R3/8/8

#2

8 + 3

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sf5#
    • 1...Se2
      • 2.Sf5#
    • 1...Sb3
      • 2.Sf5#
    • 1...Sf3
      • 2.Sf5#
    • 1...Sb5
      • 2.Sf5#
    • 1...Sf5
      • 2.Sxf5#
    • 1...Sc6
      • 2.Sf5#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sd7
      • 2.Sg6#
    • 1...Sh7
      • 2.Sg6#
  • Keys
    • 1.Se5!
      • 1...Kxe6
        • 2.Re8#
      • 1...Sdxe6
        • 2.Sf5#
      • 1...Sfxe6
        • 2.Shg6#
      • 1...Sc2
        • 2.Sc6#
      • 1...Se2
        • 2.Sc6#
      • 1...Sb3
        • 2.Sc6#
      • 1...Sf3
        • 2.Sc6#
      • 1...Sb5
        • 2.Sc6#
      • 1...Sf5
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sg6
        • 2.Sexg6#
      • 1...Sd7
        • 2.Seg6#
      • 1...Sh7
        • 2.Seg6#

Anticipated by 17972(1952)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(c);N_GUARD::S(C),XS(c)
    • S(c);N_GUARD::S(C)
  • Actual
    • S(G);
    • Vars
      • K(b);P-FLIGHT,XP(F)::R(H)
      • S(a);N_GUARD,SBLOCK,XP(F)::S(C)
      • S(c);N_GUARD,SBLOCK,XP(F)::S(C)
      • S(a);N_GUARD::S(G)
      • S(a);N_GUARD::S(G),XS(a)
      • S(c);N_GUARD::S(G),XS(c)
      • S(c);N_GUARD::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).