Problem Display
PID: 196257 (2B3n1/2BQp1N1/4p3/5pp1/r3p1k1/p6R/2p3P1/2K5 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Sachova skladba, 2013

2B3n1/2BQp1N1/4p3/5pp1/r3p1k1/p6R/2p3P1/2K5

#2

7 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...f4
      • 2.Qxe6#
    • 1...e5
      • 2.Qxf5#
  • Tries
    • 1.Sxf5?
      • threat
        • 2.Se3#
      • 1...Kxf5
        • 2.Qxe6#
      • 1...exf5
        • 2.Qxf5#
      • 1...e3
        • 2.Sxe3#
      • 1...e5!
    • 1.Qxe6?
      • threat
        • 2.Qxf5#
      • 1...Ra5
        • 2.Qxe4#
      • 1...Sh6!
    • 1.Qd3?
      • threat
        • 2.Qe2#
        • 2.Qg3#
      • 1...e5
        • 2.Qg3#
      • 1...e3
        • 2.Qe2#
      • 1...f4
        • 2.Bxe6#
      • 1...exd3!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qe2#
      • 1...f4
        • 2.Bxe6#
      • 1...e5
        • 2.Bxf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB,P_SPINP(h)::QAB(E),XP(h)
    • P(h);OGATE,P_SPINP(f)::QAB1(E),XP(f)
  • Tries
    • Try
      • S(F);XP(f)
      • Threat
        • S(F)
      • Vars
        • K(e);OGATEB,P_SPINP(h),S_FLIGHT,XS(F)::QAB1(E),XP(h)
        • P(h);OGATE,P_SPINP(h),XS(F)::QAB1(E),XP(h)
        • P(d);::S(F),XP(d)
      • Refutation
        • P(h);
    • Try
      • Q(E);P_PINP(f),XP(h)
      • Threat
        • QAB1(E),XP(f)
      • Vars
        • R(c);N_GUARD::QAR2(E),XP(d)
      • Refutation
        • S(j);
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);P_SPINP(f)::QAR1(E)
        • P(d);::QAB(E)
        • P(f);OGATEB,P_SPINP(h)::B(G),XP(h)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • P(f);OGATEB,P_SPINP(h)::B(G),XP(h)
      • P(h);OGATE,P_SPINP(f)::B(G),XP(f)


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).