MESON Chess Problem Database

Problem Display
PID: 91885 (1B2RbK1/Qn1p1N2/5p2/5k1P/1q2nPR1/3r1P2/B4pP1/5N2 w - - 0 1)

Golin, Grigory N

Schach-Echo, 1984

1B2RbK1/Qn1p1N2/5p2/5k1P/1q2nPR1/3r1P2/B4pP1/5N2

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Se3#
    • 1...Rd2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...Rd4
      • 2.Se3#
    • 1...Rd5
      • 2.Se3#
    • 1...Rd6
      • 2.Se3#
    • 1...Bc5
      • 2.Sh6#
    • 1...Bd6
      • 2.Sh6#
    • 1...Bh6
      • 2.Sxh6#
    • 1...Be7
      • 2.Sh6#
    • 1...Sd2
      • 2.Sg3#
    • 1...Sc3
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sec5
      • 2.Sg3#
    • 1...Sg5
      • 2.Sg3#
    • 1...Sed6
      • 2.Sg3#
    • 1...Sbd6
      • 2.Qxd7#
    • 1...d6
      • 2.Be6#
  • Tries
    • 1.Rg5+?
      • 1...Sxg5
        • 2.Sg3#
        • 2.g4#
      • 1...fxg5!
  • Keys
    • 1.Rh4!
      • threat
        • 2.g4#
      • 1...Qd6
        • 2.fxe4#
      • 1...Rd6
        • 2.Se3#
      • 1...Bd6
        • 2.Sh6#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sed6
        • 2.Sg3#
      • 1...Sbd6
        • 2.Qxd7#
      • 1...d6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);N_GUARD::S(A),XR(b)
    • B(i);N_GUARD::S(I)
    • B(i);N_GUARD::S(I),XB(i)
    • S(d);N_GUARD::S(A)
    • S(d);N_GUARD::S(A),XS(d)
    • S(g);OGATE::QAB(H),XP(h)
    • P(h);N_GUARD::B(B)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • P(f);XR(F)
  • Actual
    • R(F);
    • Threat
      • P(C)
    • Vars
      • Q(c);N_GUARD::P(D),XS(d)
      • R(b);N_GUARD::S(A)
      • B(i);N_GUARD::S(I)
      • S(d);N_GUARD::S(A),XS(d)
      • S(d);N_GUARD::S(A)
      • S(g);OGATE::QAB(H),XP(h)
      • P(h);N_GUARD::B(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).