MESON Chess Problem Database

Problem Display
PID: 164910 (N4K2/3p2P1/n1ppkpr1/2R4B/2N3p1/2RP1p2/2Q5/8 w - - 0 1)

Gatti, Daniele

Best Problems, 2016

N4K2/3p2P1/n1ppkpr1/2R4B/2N3p1/2RP1p2/2Q5/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Bf7#
    • 1...Rh6
      • 2.Bf7#
      • 2.g8Q#
      • 2.g8B#
    • 1...Sb4
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sb8
      • 2.Sc7#
    • 1...f2
      • 2.Qe2#
  • Tries
    • 1.Bxg6?
      • threat
        • 2.Bf5#
        • 2.Bf7#
        • 2.g8Q#
        • 2.g8B#
      • 1...Sb4
        • 2.Sc7#
        • 2.Bf5#
        • 2.Bf7#
        • 2.g8Q#
        • 2.g8B#
      • 1...Sc7
        • 2.Sxc7#
        • 2.Bf5#
        • 2.Bf7#
        • 2.g8Q#
        • 2.g8B#
      • 1...Sb8
        • 2.Sc7#
        • 2.Bf5#
        • 2.Bf7#
        • 2.g8Q#
        • 2.g8B#
      • 1...f2
        • 2.Bf5#
        • 2.Bf7#
        • 2.Qe2#
        • 2.g8Q#
        • 2.g8B#
      • 1...g3
        • 2.Bf5#
        • 2.Bf7#
        • 2.g8Q#
        • 2.g8B#
      • 1...f5!
  • Keys
    • 1.d4!
      • threat
        • 2.Re3#
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sxc5
        • 2.Sc7#
      • 1...dxc5
        • 2.Qe4#
      • 1...f5
        • 2.Qxf5#
      • 1...Rg5
        • 2.Bf7#
      • 1...d5
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(h);OGATE::B(F)
    • S(c);N_GUARD::S(H)
    • S(c);N_GUARD::S(H),XS(c)
    • P(a);N_GUARD::QAR(A)
  • Tries
    • Try
      • B(F);XR(h)
      • Threat
        • DUALS(4)
      • Refutation
        • P(g);
  • Actual
    • P(C);
    • Threat
      • DUALS(3)
    • Vars
      • S(c);N_GUARD,XR(E)::S(H)
      • P(e);XR(E)::QAR2(A)
      • P(g);::QAB1(A),XP(g)
      • R(h);OGATE::B(F)
      • P(e);::R(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).