MESON Chess Problem Database

Problem Display
PID: 153028 (1N1n4/q6p/3p1p1b/3Pkp2/2P1p3/2P1R1PK/4N2B/8 w - - 0 1)

Desensky, Jiri

Sachova skladba, 1985

1N1n4/q6p/3p1p1b/3Pkp2/2P1p3/2P1R1PK/4N2B/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3
      • 2.Sd7#
    • 1...Qd4
      • 2.Sd7#
      • 2.cxd4#
    • 1...Qc5
      • 2.Sd7#
    • 1...Qb6
      • 2.Sd7#
    • 1...Qa1
      • 2.Sd7#
    • 1...Qa2
      • 2.Sd7#
    • 1...Qa3
      • 2.Sd7#
    • 1...Qa5
      • 2.Sd7#
    • 1...Qa6
      • 2.Sd7#
    • 1...Qd7
      • 2.Sxd7#
    • 1...Qa8
      • 2.Sd7#
    • 1...Bf4
      • 2.gxf4#
    • 1...Sc6
      • 2.Sxc6#
    • 1...Se6
      • 2.Sc6#
    • 1...Sb7
      • 2.Sc6#
      • 2.Sd7#
    • 1...Sf7
      • 2.Sc6#
  • Tries
    • 1.g4+?
      • 1...Bf4
        • 2.Bxf4#
      • 1...f4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
      • 1...Qxe3
        • 2.Sd7#
      • 1...Bxf4
        • 2.gxf4#
      • 1...Qd4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • Q(g);N_GUARD,N_SPINP(a),P_PINP(E),XR(D)::S(I)
    • Q(g);N_GUARD::S(I)
    • Q(g);N_GUARD::S(I),XQ(g)
    • B(f);OGATE::P(E),XB(f)
    • S(i);N_GUARD::S(I),XS(i)
    • S(i);N_GUARD::S(I)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::B(B),XB(f)
      • Refutation
        • P(c);
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • Q(g);N_GUARD,N_SPINP(a),P_PINP(E),XR(D)::S(I)
      • B(f);OGATE,XS(A)::P(E),XB(f)
      • Q(g);N_GUARD::S(I)
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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).