MESON Chess Problem Database

Problem Display
PID: 270036 (8/3N1nQ1/2p5/K2n2b1/2kB4/1pPp4/8/1B3Nq1 w - - 0 1)

Petrasinovic, Petrasin

Tidskrift for Schack, 2002

8/3N1nQ1/2p5/K2n2b1/2kB4/1pPp4/8/1B3Nq1

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Qxd4#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bh4
      • 2.Sd2#
    • 1...Bf6
      • 2.Sd2#
    • 1...Be7
      • 2.Sd2#
    • 1...Sxc3
      • 2.Sb6#
    • 1...Se3
      • 2.Sb6#
    • 1...Sb4
      • 2.Sb6#
    • 1...Sf4
      • 2.Sb6#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sf6
      • 2.Sb6#
    • 1...Sc7
      • 2.Sb6#
    • 1...Se7
      • 2.Sb6#
    • 1...Se5
      • 2.Sxe5#
    • 1...Sd6
      • 2.Se5#
    • 1...Sh6
      • 2.Se5#
    • 1...Sd8
      • 2.Se5#
    • 1...Sh8
      • 2.Se5#
    • 1...b2
      • 2.Ba2#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxc6#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...Bxf6
        • 2.Sd2#
      • 1...Sxc3
        • 2.Sb6#
      • 1...Sxf6
        • 2.Sb6#
      • 1...Sb4
        • 2.Sb6#
      • 1...Se7
        • 2.Sb6#
      • 1...b2
        • 2.Ba2#
      • 1...Se5
        • 2.Sxe5#
      • 1...Sd6
        • 2.Se5#
      • 1...Sd8
        • 2.Se5#
      • 1...c5
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(a);OGATE,XB(D)::QAR1(G),XQ(a)
    • B(f);N_GUARD,P_PINP(C)::S(B),XB(f)
    • B(f);N_GUARD::S(B)
    • S(e);N_GUARD,XP(C)::S(F)
    • S(e);N_GUARD::S(F)
    • S(e);N_GUARD::S(F),XS(e)
    • S(h);N_GUARD::S(F),XS(h)
    • S(h);N_GUARD::S(F)
    • P(b);OGATEB::B(A)
  • Actual
    • Q(G);
    • Threat
      • QAR2(G),XP(g)
    • Vars
      • Q(a);OGATE,XB(D)::QAR1(G),XQ(a)
      • B(f);N_GUARD,XQ(G)::S(B)
      • S(e);N_GUARD,XP(C)::S(F)
      • S(e);N_GUARD,XQ(G)::S(F)
      • S(e);N_GUARD::S(F)
      • P(b);OGATEB::B(A)
      • S(h);N_GUARD::S(F),XS(h)
      • S(h);N_GUARD::S(F)
      • P(g);OGATE::QAB(G)
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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).