Problem Display
PID: 158110 (bBQ5/8/p4K2/3ppN2/4k3/3p1p1N/r4p2/5n2 w - - 0 1)

Antonov, Yuri Mikhailovich

Probleemblad, 1978

bBQ5/8/p4K2/3ppN2/4k3/3p1p1N/r4p2/5n2

#2

5 + 10


15148 Sadier Collection 2016

SOLUTION


  • SOUND
  • Tries
    • 1.Sxf2+?
      • 1...Kf4
        • 2.Bxe5#
      • 1...Rxf2!
    • 1.Sd6+?
      • 1...Kd4
        • 2.Ba7#
      • 1...Ke3!
    • 1.Ba7?
      • threat
        • 2.Sd6#
      • 1...d4
        • 2.Qxa8#
      • 1...d2!
    • 1.Qc3?
      • threat
        • 2.Qxe5#
      • 1...d2
        • 2.Sd6#
      • 1...d4!
    • 1.Qc5?
      • threat
        • 2.Sd6#
      • 1...d4
        • 2.Qxe5#
      • 1...d2!
  • Keys
    • 1.Bxe5!
      • threat
        • 2.Sg5#
      • 1...d2
        • 2.Sxf2#
      • 1...d4
        • 2.Qxa8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK,XP(c)
      • Vars
        • K(f);P-FLIGHT,P_SPINP(h)::B(D),XP(h)
      • Refutation
        • R(b);XS(A)
    • Try
      • S(B);CHECK
      • Vars
        • K(f);P-FLIGHT::B(D)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • S(B)
      • Vars
        • P(g);OGATEB::QAB(E),XB(j)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(h)
      • Vars
        • P(d);::S(B)
      • Refutation
        • P(g);
    • Try
      • Q(E);
      • Threat
        • S(B)
      • Vars
        • P(g);OGATE::QAR1(E),XP(h)
      • Refutation
        • P(d);
  • Actual
    • B(D);XP(h)
    • Threat
      • S(A)
    • Vars
      • P(d);S_CUTR(b)::S(A),XP(c)
      • P(g);OGATEB::QAB(E),XB(j)


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).