MESON Chess Problem Database

Problem Display
PID: 133663 (3q1Rbr/3prn1p/1p5p/3RPP2/1B3kPQ/1KpP1p2/5P1b/3N4 w - - 0 1)

Stojnic, Dragan

1st Prize, Casa MT (diagrammes), 2006

3q1Rbr/3prn1p/1p5p/3RPP2/1B3kPQ/1KpP1p2/5P1b/3N4

#2

11 + 13

273 Mat Plus 2008
145 StrateGems 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.fxg3#
    • 1...Sd6
      • 2.g5#
    • 1...c2
      • 2.Bd2#
  • Tries
    • 1.Se3?
      • threat
        • 2.g5#
      • 1...Sxe5
        • 2.Qxh6#
      • 1...Sg5
        • 2.Qxh2#
      • 1...Bg3!
    • 1.Bd6?
      • threat
        • 2.Rd4#
      • 1...Sxe5
        • 2.g5#
      • 1...Sxd6
        • 2.g5#
      • 1...Sg5
        • 2.e6#
      • 1...Qa8!
  • Keys
    • 1.e6!
      • threat
        • 2.g5#
      • 1...Bg3
        • 2.fxg3#
      • 1...Se5
        • 2.Rd4#
      • 1...Sg5
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::P(B),XB(a)
    • S(i);P_PINR(H)::QAR(G)+P(F)
    • P(b);OGATE::B(E)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR(G)+P(F)
      • Vars
        • S(i);N_GUARD,P_PINR(H),XP(I)::QAB(G),XP(f)
        • S(i);P_PINR(H),SBLOCK::QAB(G),XB(a)
      • Refutation
        • B(a);
    • Try
      • B(E);
      • Threat
        • R(H)
      • Vars
        • S(i);P_PINR(H),P_SPINS(i),XP(I)::QAR(G)+P(F)
        • S(i);P_PINR(H),XB(E)::QAR(G)+P(F)
        • S(i);N_GUARD,P_PINR(H)::B(E)+P(I)
      • Refutation
        • Q(k);
  • Actual
    • P(I);
    • Threat
      • QAR(G)+P(F)
    • Vars
      • B(a);OGATE::P(B),XB(a)
      • S(i);SBLOCK::R(H)
      • S(i);N_GUARD::B(E)
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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).