MESON Chess Problem Database

Problem Display
PID: 187229 (3R4/2P1pK2/1B1bB3/2p1kN2/2P1b1Qp/3n1p1P/3R1P2/8 w - - 0 1)

Anonymous

12. Kwik-Toernooi, 1979

3R4/2P1pK2/1B1bB3/2p1kN2/2P1b1Qp/3n1p1P/3R1P2/8

#2

11 + 8

102 Probleemblad 1979

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc7
      • 2.Bxc7#
    • 1...Sf4
      • 2.Qg7#
  • Tries
    • 1.Qg3+?
      • 1...Sf4
        • 2.Qg7#
      • 1...hxg3!
  • Keys
    • 1.Sxh4!
      • 1...Bg6+
        • 2.Sxg6#
      • 1...Kd4
        • 2.Qg7#
      • 1...Bxc7
        • 2.Bxc7#
      • 1...Sxf2
        • 2.Qg3#
      • 1...Bd5
        • 2.Sg6#
      • 1...Bf5
        • 2.Sxf3#
      • 1...Bc6
        • 2.Sg6#
      • 1...Bb7
        • 2.Sg6#
      • 1...Bh7
        • 2.Sxf3#
      • 1...Ba8
        • 2.Sg6#
      • 1...Sc1
        • 2.Qg3#
      • 1...Se1
        • 2.Qg3#
      • 1...Sb2
        • 2.Qg3#
      • 1...Sb4
        • 2.Qg3#
      • 1...Sf4
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • B(g);OGATE,XP(I)::B(G),XB(g)
    • S(a);SBLOCK::QAB(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(a);P_SPINS(a),SBLOCK::QAB(E)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • S(F);XP(d)
    • Vars
      • B(c);CHECK,N_GUARD::S(F),XB(c)
      • K(f);P_SPINB(c),P_SPINP(e),P_SPINS(a),S_FLIGHT::QAB(E)
      • B(g);OGATE,XP(I)::B(G),XB(g)
      • S(a);N_GUARD,XP(B)::QAB(E)
      • B(c);N_GUARD,P_PINB(H)::S(F)
      • B(c);N_GUARD::S(F),XP(b)
      • B(c);N_GUARD::S(F)
      • S(a);N_GUARD::QAB(E)
      • S(a);SBLOCK::QAB(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).