MESON Chess Problem Database

Problem Display
PID: 176412 (1b2Rq2/pN1bpp2/2n5/1R6/2P1k1p1/4P3/2P1K3/Q3n3 w - - 0 1)

Dimitrov, Nikolai

Schach-Echo, 1982

1b2Rq2/pN1bpp2/2n5/1R6/2P1k1p1/4P3/2P1K3/Q3n3

#2

8 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Sc5#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Sxc2
      • 2.Qh1#
    • 1...Sd3
      • 2.Qh1#
      • 2.cxd3#
    • 1...Sb4
      • 2.Qd4#
    • 1...Sd4+
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qd4#
    • 1...Sd8
      • 2.Qd4#
    • 1...f5
      • 2.Sc5#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sc5#
      • 1...Sd4+
        • 2.Qxd4#
      • 1...e5
        • 2.Qf4#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Sd3
        • 2.cxd3#
      • 1...e6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(f);SBLOCK::S(G)
    • B(i);N_GUARD::S(G),XB(i)
    • S(a);OGATE,XP(B)::QAB(A)
    • S(d);N_GUARD::QAR1(A)
    • S(d);CHECK,N_GUARD::QAR1(A),XS(d)
    • P(h);SBLOCK::S(G)
  • Actual
    • Q(A);
    • Threat
      • S(G)
    • Vars
      • S(d);CHECK,N_GUARD::QAR1(A),XS(d)
      • P(g);S_CUTB(i)::QAR1(A)
      • B(i);N_GUARD::S(G),XB(i)
      • S(a);OGATE::P(B),XS(a)
      • P(g);S_CUTB(f)::QAB1(A)
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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).