Problem Display
PID: 118205 (6Q1/6K1/4P3/3P1P1p/1N1Bkn1N/4P3/8/8 w - - 0 1)

Petkov, Petko Andonov

Boletim da UBP, 1969

6Q1/6K1/4P3/3P1P1p/1N1Bkn1N/4P3/8/8

#2

9 + 3


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Sxe6+
      • 2.Qxe6#
  • Tries
    • 1.Kh6?
      • 1...Sxd5
        • 2.Qg2#
      • 1...Sxe6
        • 2.Qxe6#
        • 2.Qg2#
      • 1...Se2
        • 2.Qg2#
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sd3
        • 2.Qg2#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sg6!
    • 1.Kf7?
      • 1...Sxd5
        • 2.Qg2#
      • 1...Sxe6
        • 2.Qg2#
      • 1...Se2
        • 2.Qg2#
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sd3
        • 2.Qg2#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sg6!
    • 1.Kh7?
      • 1...Sxd5
        • 2.Qg2#
      • 1...Sxe6
        • 2.Qxe6#
        • 2.Qg2#
      • 1...Se2
        • 2.Qg2#
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sd3
        • 2.Qg2#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sg6!
    • 1.Kf8?
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...Sxd5
        • 2.Qg2#
      • 1...Se2
        • 2.Qg2#
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sd3
        • 2.Qg2#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sg6+!
    • 1.Kh8?
      • 1...Sxd5
        • 2.Qg2#
      • 1...Sxe6
        • 2.Qxe6#
        • 2.Qg2#
      • 1...Se2
        • 2.Qg2#
      • 1...Sg2
        • 2.Qxg2#
      • 1...Sd3
        • 2.Qg2#
      • 1...Sh3
        • 2.Qg2#
      • 1...Sg6+!
    • 1.Qh7?
      • 1...Sxe6+
        • 2.fxe6#
      • 1...Sxd5
        • 2.f6#
      • 1...Se2
        • 2.f6#
      • 1...Sg2
        • 2.f6#
      • 1...Sd3
        • 2.f6#
      • 1...Sh3
        • 2.f6#
      • 1...Sg6!
    • 1.Qc8?
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...Sxd5
        • 2.Qc2#
      • 1...Sg6
        • 2.Qc2#
      • 1...Se2
        • 2.Qc2#
      • 1...Sg2
        • 2.Qc2#
      • 1...Sh3
        • 2.Qc2#
      • 1...Sd3!
    • 1.d6?
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...Sg6
        • 2.Qa8#
      • 1...Se2
        • 2.Qa8#
      • 1...Sg2
        • 2.Qa8#
      • 1...Sd3
        • 2.Qa8#
      • 1...Sh3
        • 2.Qa8#
      • 1...Sd5!
    • 1.f6?
      • 1...Sxe6+
        • 2.Qxe6#
      • 1...Sxd5
        • 2.Qh7#
      • 1...Se2
        • 2.Qh7#
      • 1...Sg2
        • 2.Qh7#
      • 1...Sd3
        • 2.Qh7#
      • 1...Sh3
        • 2.Qh7#
      • 1...Sg6!
  • Keys
    • 1.Qa8!
      • 1...Sxe6+
        • 2.dxe6#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sg6
        • 2.d6#
      • 1...Se2
        • 2.d6#
      • 1...Sg2
        • 2.d6#
      • 1...Sd3
        • 2.d6#
      • 1...Sh3
        • 2.d6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);CHECK,OGATE,XP(G)::QAR2(I),XS(b)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
        • S(b);N_GUARD::QAB(I),XS(b)
      • Refutation
        • S(b);
    • Try
      • K(H);P-FLIGHT
      • Vars
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD,XP(G)::QAB(I)
        • S(b);N_GUARD::QAB(I)
        • S(b);N_GUARD::QAB(I),XS(b)
      • Refutation
        • S(b);
    • Try
      • K(H);P-FLIGHT
      • Vars
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
        • S(b);N_GUARD::QAB(I),XS(b)
      • Refutation
        • S(b);
    • Try
      • K(H);S_FLIGHT
      • Vars
        • S(b);CHECK,OGATE,XP(G)::QAR2(I),XS(b)
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
        • S(b);N_GUARD::QAB(I),XS(b)
      • Refutation
        • S(b);CHECK
    • Try
      • K(H);S_FLIGHT
      • Vars
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
        • S(b);N_GUARD::QAB(I),XS(b)
      • Refutation
        • S(b);CHECK
    • Try
      • Q(I);
      • Vars
        • S(b);CHECK,OGATE,XP(G)::QAB(I)+P(F),XS(b)
        • S(b);N_GUARD,XP(E)::QAB(I)+P(F)
        • S(b);N_GUARD::QAB(I)+P(F)
      • Refutation
        • S(b);
    • Try
      • Q(I);
      • Vars
        • S(b);CHECK,OGATE,XP(G)::QAR2(I),XS(b)
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
      • Refutation
        • S(b);
    • Try
      • P(E);
      • Vars
        • S(b);CHECK,OGATE,XP(G)::QAR2(I),XS(b)
        • S(b);N_GUARD::QAB(I)
      • Refutation
        • S(b);
    • Try
      • P(F);
      • Vars
        • S(b);CHECK,OGATE,XP(G)::QAR2(I),XS(b)
        • S(b);N_GUARD,XP(E)::QAB(I)
        • S(b);N_GUARD::QAB(I)
      • Refutation
        • S(b);
  • Actual
    • Q(I);
    • Vars
      • S(b);CHECK,OGATE,XP(G)::QAB(I)+P(E),XS(b)
      • S(b);OGATE,P_SPINS(b),XP(E)::QAB1(I),XS(b)
      • S(b);N_GUARD::QAB(I)+P(E)


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).