MESON Chess Problem Database

Problem Display
PID: 143099 (b3R3/3pNprq/3Pp2Q/2B1n1rP/2PR2P1/3pkp1K/5p2/1N3B2 w - - 0 1)

Levman, Semyon Semyonovich

Magyar Sakkvilag, 1930

b3R3/3pNprq/3Pp2Q/2B1n1rP/2PR2P1/3pkp1K/5p2/1N3B2

#2

12 + 12

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Rxc4#
    • 1...Sxg4
      • 2.Rxg4#
    • 1...Sc6
      • 2.Sd5#
    • 1...Sg6
      • 2.Sf5#
  • Keys
    • 1.Kg3!
      • threat
        • 2.Rf4#
      • 1...Sxc4
        • 2.Rxc4#
      • 1...Sxg4
        • 2.Rxg4#
      • 1...Qe4
        • 2.Rxd3#
      • 1...Be4
        • 2.Rxd3#
        • 2.Rd5#
      • 1...Sc6
        • 2.Sd5#
      • 1...Sg6
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE,XP(D)::B(G)+R(E),XS(e)
    • S(e);OGATE,XP(F)::B(G)+R(E),XS(e)
    • S(e);S_CUTB(l),S_CUTP(g)::S(K)
    • S(e);S_CUTP(g),S_CUTQ(k)::S(K)
  • Actual
    • K(C);P-FLIGHT,P_SPINP(F)
    • Threat
      • B(G)+R(E)
    • Vars
      • S(e);OGATE,XP(D)::B(G)+R(E),XS(e)
      • S(e);OGATE,XP(F)::B(G)+R(E),XS(e)
      • Q(k);SBLOCK::B(G)+R(E),DCHECK,XP(b)
      • S(e);S_CUTB(l),S_CUTP(g)::S(K)
      • S(e);S_CUTP(g),S_CUTQ(k)::S(K)
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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).