Problem Display
PID: 110130 (2bn3N/4pP2/4k3/Rn4P1/3b3P/pN6/2K3BB/1Q6 w - - 0 1)

Kondratiev, Pavel E

Kudesnik, 1991

2bn3N/4pP2/4k3/Rn4P1/3b3P/pN6/2K3BB/1Q6

#2

10 + 7


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bh3#
      • 2.f8S#
    • 1...Sd6
      • 2.f8S#
    • 1...Sa7
      • 2.Bh3#
      • 2.f8S#
    • 1...Sc7
      • 2.Bh3#
      • 2.f8S#
  • Tries
    • 1.Sc5+?
      • 1...Kf5
        • 2.Bh3#
      • 1...Bxc5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qg4#
      • 1...Kf5
        • 2.Sxd4#
      • 1...Kd7
        • 2.Sc5#
      • 1...Bxh8
        • 2.Qd5#
      • 1...Be5
        • 2.Bh3#
      • 1...Sd6
        • 2.f8S#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);::P=S
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::B(C)
      • Refutation
        • B(b);XS(E)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT::S(E),XB(b)
      • K(d);P_SPINB(b),S_FLIGHT::S(E)
      • B(b);OGATE,XS(J)::QAB1(A)
      • B(b);::B(C)
      • S(c);::P=S


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).