MESON Chess Problem Database

Problem Display
PID: 143074 (1K6/p6B/3N2R1/1p2P1b1/rr6/1pNkPP1p/7q/1nR1Q1n1 w - - 0 1)

Restad, Birger

Magyar Sakkvilag, 1930

1K6/p6B/3N2R1/1p2P1b1/rr6/1pNkPP1p/7q/1nR1Q1n1

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc3
      • 2.Rxc3#
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rc6#
      • 1...Qxe5+
        • 2.Sxe5#
      • 1...bxc4+
        • 2.Rb6#
      • 1...Kxc4
        • 2.Rc6#
      • 1...Rxc4
        • 2.Rd6#
      • 1...Bxe3
        • 2.Rg4#
      • 1...Sxc3
        • 2.Rxc3#
      • 1...Qf4
        • 2.Sb2#
      • 1...Bf6
        • 2.Rg4#
      • 1...Sd2
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,XS(C)::R1(A),XS(a)
  • Actual
    • S(G);P_SPINP(F)
    • Threat
      • B(I)+R(H)
    • Vars
      • Q(c);CHECK,XP(F)::S(G),XQ(c)
      • P(i);CHECK,SBLOCK,XS(G)::B(I)+R(H)
      • K(e);S_FLIGHT,XS(G)::R(H)
      • R(h);SBLOCK,XS(G)::B(I)+R(H),DCHECK
      • B(j);OGATE,XP(D)::B(I)+R(H)
      • S(a);OGATE,XS(C)::R1(A),XS(a)
      • Q(c);N_GUARD::S(G)
      • B(j);OGATE::B(I)+R(H)
      • S(a);S_CUTQ(c)::S(G)
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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).