MESON Chess Problem Database

Problem Display
PID: 152101 (6B1/5nQb/3b1np1/R6q/2pkp3/B7/K1PP1Pr1/1N2R3 w - - 0 1)

Golubev, Giorgi P

Die Schwalbe, 1930

6B1/5nQb/3b1np1/R6q/2pkp3/B7/K1PP1Pr1/1N2R3

#2

10 + 10

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Rd5#
  • Tries
    • 1.Qxf6+?
      • 1...Be5
        • 2.Qb6#
      • 1...Se5
        • 2.Rd5#
        • 2.Qxd6#
      • 1...Qe5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Rxe4#
      • 1...Qd5
        • 2.Rxd5#
      • 1...Qe2
        • 2.Sxe2#
        • 2.Rd5#
      • 1...Qf3
        • 2.Rd5#
      • 1...Qg4
        • 2.Rd5#
      • 1...Qh4
        • 2.Se2#
        • 2.Rd5#
      • 1...Qe5
        • 2.Se2#
      • 1...Qf5
        • 2.Se2#
      • 1...Rg4
        • 2.Se2#
      • 1...Be5
        • 2.Bc5#
      • 1...Se5
        • 2.Sb5#
      • 1...Sg5
        • 2.Rd5#
      • 1...e3
        • 2.fxe3#
      • 1...g5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(i);S_CUTQ(e)::R1(H)
  • Tries
    • Try
      • Q(I);CHECK,XS(g)
      • Vars
        • B(f);OGATE,P_SPINB(f)::QAB(I)
      • Refutation
        • Q(e);P_SPINQ(e)
  • Actual
    • S(A);
    • Threat
      • R1(B),XP(d)
    • Vars
      • Q(e);N_GUARD::R1(H),XQ(e)
      • Q(e);N_GUARD::R1(H)
      • Q(e);N_GUARD,N_SPINS(g)::S(A)
      • Q(e);N_GUARD::S(A)
      • R(a);S_CUTQ(e)::S(A)
      • B(f);N_GUARD,N_SPINS(g),SBLOCK,S_CUTQ(e)::B(G)
      • S(i);N_SPINS(g),SBLOCK,S_CUTQ(e)::S(A)
      • S(i);S_CUTQ(e)::R1(H)
      • P(d);OGATE::P(F),XP(d)
      • P(h);S_CUTQ(e)::R1(H)
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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).