MESON Chess Problem Database

Problem Display
PID: 232473 (8/3R3N/5P2/2PnP1QK/RP2kP2/3Nn3/1P2B2B/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2009

8/3R3N/5P2/2PnP1QK/RP2kP2/3Nn3/1P2B2B/8

#2

14 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sf2#
    • 1...Sxb4
      • 2.Sf2#
    • 1...Sxf4+
      • 2.Qxf4#
    • 1...Sb6
      • 2.Sf2#
    • 1...Sxf6+
      • 2.Sxf6#
    • 1...Sc7
      • 2.Sf2#
    • 1...Se7
      • 2.Sf2#
  • Tries
    • 1.b5+?
      • 1...Sb4
        • 2.Sf2#
      • 1...Sc4!
  • Keys
    • 1.Bg1!
      • 1...Sxf4+
        • 2.Qxf4#
      • 1...Sxf6+
        • 2.Sxf6#
      • 1...Kd4
        • 2.b5#
      • 1...Sxb4
        • 2.Sf2#
      • 1...Sd1
        • 2.Qg6#
      • 1...Sf1
        • 2.Qg6#
      • 1...Sc2
        • 2.Qg6#
      • 1...Sg2
        • 2.Qg6#
      • 1...Sc4
        • 2.Qg6#
      • 1...Sg4
        • 2.Qg6#
      • 1...Sf5
        • 2.Qg2#
      • 1...Sc3
        • 2.Sf2#
      • 1...Sb6
        • 2.Sf2#
      • 1...Sc7
        • 2.Sf2#
      • 1...Se7
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(c);::S(D)
    • S(c);P_SPINS(c),XP(F)::S(D)
    • S(c);CHECK,OGATE,XP(G)::QAR1(J),XS(c)
    • S(c);CHECK,XP(L)::S(N),XS(c)
  • Tries
    • Try
      • P(F);CHECK
      • Vars
        • S(c);P_SPINS(c)::S(D)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • B(C);
    • Vars
      • S(c);CHECK,OGATE,XP(G)::QAR1(J),XS(c)
      • S(c);CHECK,XP(L)::S(N),XS(c)
      • K(b);P-FLIGHT,P_SPINS(a)::R(E)+P(F)
      • S(c);P_SPINS(c),XP(F)::S(D)
      • S(a);N_GUARD::QAB(J)
      • S(a);N_GUARD,SBLOCK::QAB(J)
      • S(c);::S(D)
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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).