MESON Chess Problem Database

Problem Display
PID: 106274 (b3N3/Rn1PpP1q/3PkPn1/1p2p2B/4Q3/4N3/8/1K6 w - - 0 1)

Pituk, Alexander

Praca, 1948

b3N3/Rn1PpP1q/3PkPn1/1p2p2B/4Q3/4N3/8/1K6

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf7
      • 2.Bg4#
      • 2.Qf5#
      • 2.Qg4#
    • 1...Sf4
      • 2.f8S#
    • 1...Sh4
      • 2.f8S#
    • 1...Sh8
      • 2.f8S#
    • 1...Sa5
      • 2.d8S#
    • 1...Sc5
      • 2.d8S#
    • 1...Sxd6
      • 2.d8S#
  • Keys
    • 1.dxe7!
      • threat
        • 2.Qd5#
      • 1...Kxd7
        • 2.Bg4#
      • 1...Kxf7
        • 2.Qd5#
      • 1...Sxe7
        • 2.f8S#
      • 1...Sf4
        • 2.f8S#
      • 1...Sh4
        • 2.f8S#
      • 1...Sf8
        • 2.exf8S#
      • 1...Sh8
        • 2.f8S#
      • 1...Sa5
        • 2.d8S#
      • 1...Sc5
        • 2.d8S#
      • 1...Sd6
        • 2.d8S#
      • 1...Sd8
        • 2.exd8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD,P_PINQ(C)::P=S
    • S(e);N_GUARD::P=S
    • S(e);N_GUARD,XP(E)::P=S
  • Actual
    • P(E);XP(f)
    • Threat
      • QAB1(C)
    • Vars
      • K(c);N_SPINP(b),P_SPINS(e),S_FLIGHT,XP(H)::B(D)
      • K(c);N_SPINP(b),P_SPINS(d),S_FLIGHT,XP(I)::QAB(C)
      • S(d);N_GUARD,P_PINQ(C),XP(E)::P=S
      • S(d);N_GUARD,P_PINQ(C)::P=S
      • S(d);OGATE,P_PINQ(C)::PXS(d)=S
      • S(e);N_GUARD::P=S
      • S(e);OGATE::PXS(e)=S
HTML5 logo

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).