MESON Chess Problem Database

Problem Display
PID: 184804 (8/6n1/p2q4/Q3N3/3pNk1b/n2K3B/6P1/8 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

8/6n1/p2q4/Q3N3/3pNk1b/n2K3B/6P1/8

#2

6 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Sg6#
    • 1...Qc5
      • 2.Sg6#
    • 1...Qxe5
      • 2.Qd2#
    • 1...Qc7
      • 2.Sg6#
    • 1...Qe7
      • 2.Sg6#
    • 1...Qb8
      • 2.Sg6#
    • 1...Qf8
      • 2.Sg6#
    • 1...Qd5
      • 2.Sg6#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qd7
      • 2.Sg6#
    • 1...Qd8
      • 2.Sg6#
    • 1...Bg5
      • 2.g3#
    • 1...Bf6
      • 2.Sg6#
      • 2.g3#
    • 1...Be7
      • 2.g3#
    • 1...Bd8
      • 2.g3#
    • 1...Se6
      • 2.Sg6#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Qxd6#
      • 1...Qxe5
        • 2.Qc1#
      • 1...Qg6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • Q(f);N_GUARD::S(F)
    • Q(f);SBLOCK,XS(F)::QAB(E)
    • Q(f);N_GUARD,P_PINS(D)::S(F),XQ(f)
    • B(d);N_GUARD::P(A)
    • S(g);S_CUTQ(f)::S(F)
  • Actual
    • Q(E);
    • Threat
      • S(F)
    • Vars
      • K(c);OGATEB,P_SPINQ(f),S_FLIGHT,XS(F)::QAB1(E),XQ(f)
      • Q(f);P_SPINQ(f),SBLOCK,XS(F)::QAB(E)
      • Q(f);P_PINS(D)::QAB(E)+S(F),DCHECK,XQ(f)
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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).