MESON Chess Problem Database

Problem Display
PID: 56441 (1B6/3pp1N1/KP2p2r/3k1r2/Q2P2n1/1p6/3R1PP1/1N1n4 w - - 0 1)

Brogi, Giuseppe

L'Italia Scacchistica, 1918

1B6/3pp1N1/KP2p2r/3k1r2/Q2P2n1/1p6/3R1PP1/1N1n4

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.d5#
    • 1...Sb2
      • 2.Sc3#
    • 1...Sdxf2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sde3
      • 2.Sc3#
  • Tries
    • 1.Qc4+?
      • 1...Ke4
        • 2.d5#
      • 1...Kxc4!
    • 1.f3?
      • threat
        • 2.Qb5#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Rxf3!
  • Keys
    • 1.Kb5!
      • threat
        • 2.Qa8#
      • 1...Ke4+
        • 2.d5#
      • 1...Sc3+
        • 2.Sxc3#
      • 1...Se5
        • 2.dxe5#
      • 1...e5
        • 2.dxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(d);OGATE,S_FLIGHT::QAR(E)+P(F)
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD,XP(C)::S(A)
    • S(a);N_GUARD::S(A),XS(a)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR(E)+P(F)
      • Refutation
        • K(d);S_FLIGHT,XQ(E)
    • Try
      • P(C);
      • Threat
        • QAR2(E)
      • Vars
        • S(a);N_GUARD::S(A),XS(a)
      • Refutation
        • R(e);XP(C)
  • Actual
    • K(G);S_FLIGHT
    • Threat
      • QAB(E)
    • Vars
      • K(d);CHECK,OGATE,S_FLIGHT::QAR(E)+P(F)
      • S(a);CHECK,N_GUARD::S(A),XS(a)
      • S(c);OGATE::R(B)+P(F),XS(c)
      • P(f);OGATE::R(B)+P(F),XP(f)
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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).