MESON Chess Problem Database

Problem Display
PID: 107584 (B7/4PK2/2rP4/4P1p1/N1PnknP1/R3N3/2pPP1bQ/B7 w - - 0 1)

Apro, Laszlo

Szugyi MT, 1976

B7/4PK2/2rP4/4P1p1/N1PnknP1/R3N3/2pPP1bQ/B7

#2

14 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Sc5#
    • 1...Sb5
      • 2.Sc5#
    • 1...Sf5
      • 2.Sc5#
    • 1...Sd3
      • 2.Sc3#
    • 1...Sh3
      • 2.Sc3#
      • 2.Sc5#
    • 1...Sh5
      • 2.Sc3#
      • 2.Sc5#
    • 1...Se6
      • 2.Sc3#
    • 1...Sg6
      • 2.Sc3#
      • 2.Sc5#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Re3#
      • 1...Sb3
        • 2.Sg3#
      • 1...Sf5
        • 2.Sc5#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sd5
        • 2.d3#
      • 1...Kxe5!
    • 1.Bxc6+?
      • 1...Sxc6
        • 2.Sc5#
      • 1...Sd5
        • 2.Sc3#
        • 2.Sc5#
        • 2.Bxd5#
      • 1...Kxe5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Re3#
      • 1...Kxe5
        • 2.e8Q#
        • 2.e8R#
      • 1...Sxf5
        • 2.Sc5#
      • 1...Sb3
        • 2.Sg3#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sd5
        • 2.d3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(c);::S(G)
    • S(e);::S(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(E)
      • Vars
        • S(c);::S(F)
        • S(c);::S(G)
        • S(e);::S(G)
        • S(e);N_GUARD,N_SPINR(g)::P(B)
      • Refutation
        • K(d);N_SPINR(g),P-FLIGHT,P_SPINS(c),XP(J)
    • Try
      • B(N);CHECK,XR(g)
      • Vars
        • S(c);XB(N)::S(G)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(c),XP(J)
  • Actual
    • S(F);
    • Threat
      • R1(E)
    • Vars
      • K(d);N_SPINR(g),P-FLIGHT,P_SPINS(c),XP(J)::P=Q
      • S(c);XS(F)::S(G)
      • S(c);::S(F)
      • S(e);::S(G)
      • S(e);N_GUARD,N_SPINR(g)::P(B)
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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).