Problem Display
PID: 171060 (8/2K2p2/2p2R2/3p1p2/P2k1N2/3pNP2/3B3Q/8 w - - 0 1)

Dimitrov, Nikolai

Variantim, 1990

8/2K2p2/2p2R2/3p1p2/P2k1N2/3pNP2/3B3Q/8

#2

8 + 6


SOLUTION


  • SOUND
  • Tries
    • 1.Sxf5+?
      • 1...Kc5
        • 2.Rxc6#
      • 1...Ke5
        • 2.Sh5#
      • 1...Kc4!
    • 1.Se2+?
      • 1...Kc5
        • 2.Rxc6#
        • 2.Qd6#
      • 1...dxe2!
    • 1.Rxf5?
      • 1...c5
        • 2.Rxd5#
      • 1...f6
        • 2.Se6#
      • 1...Kc5!
    • 1.Rxc6?
      • 1...f6
        • 2.Se6#
      • 1...Ke5!
    • 1.Rxf7?
      • threat
        • 2.Se6#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5!
    • 1.Qh4?
      • 1...Kc5
        • 2.Sxd3#
      • 1...Ke5
        • 2.Sxd3#
      • 1...c5!
  • Keys
    • 1.Qh8!
      • 1...Kc5
        • 2.Rxc6#
      • 1...Ke5
        • 2.Rxf5#
      • 1...c5
        • 2.Rxf7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK,XP(d)
      • Vars
        • K(b);S_FLIGHT::R1(G),XP(e)
        • K(b);S_FLIGHT::QAB(B)+S(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • P(a);XS(F)
    • Try
      • R(G);XP(d)
      • Vars
        • P(e);N_GUARD::R1(G),XP(c)
        • P(f);N_GUARD::S(F)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • R(G);XP(e)
      • Vars
        • P(f);N_GUARD::S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);XP(f)
      • Threat
        • S(F)
      • Vars
        • K(b);S_FLIGHT::S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT::S(F),XP(a)
      • Refutation
        • P(e);
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::R1(G),XP(e)
      • K(b);S_FLIGHT::QAB(B)+R(G),DCHECK,XP(d)
      • P(e);SBLOCK::QAB(B)+R(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).