Problem Display
PID: 245866 (B7/1r5p/nb2N3/1p2Pk1K/4p3/8/Q5pB/8 w - - 0 1)

Dimitrov, Nikolai

Europa-Rochade, 2006

B7/1r5p/nb2N3/1p2Pk1K/4p3/8/Q5pB/8

#2

6 + 8


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rg7
      • 2.Sxg7#
    • 1...Rb8
      • 2.Sg7#
    • 1...Bd4
      • 2.Sxd4#
    • 1...Ba5
      • 2.Sd4#
    • 1...Bc7
      • 2.Sd4#
      • 2.Sg7#
    • 1...Bd8
      • 2.Sd4#
    • 1...Sc5
      • 2.Sd4#
    • 1...Sc7
      • 2.Sg7#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Qe6#
        • 2.Qf7#
      • 1...Bxc7
        • 2.Qf7#
      • 1...Sxc7
        • 2.Qf7#
      • 1...e3
        • 2.Qb1#
        • 2.Qc2#
      • 1...Sc5
        • 2.Qf7#
        • 2.Qf2#
      • 1...Rxc7!
    • 1.Sf8?
      • threat
        • 2.Qe6#
      • 1...e3
        • 2.Qb1#
        • 2.Qc2#
      • 1...Sc5
        • 2.Qf2#
      • 1...Sc7
        • 2.Qf7#
      • 1...Re7!
    • 1.Qxg2?
      • threat
        • 2.Qh3#
        • 2.Qg4#
      • 1...Rg7
        • 2.Sxg7#
      • 1...e3
        • 2.Qg4#
      • 1...Kxe6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe6#
      • 1...Re7
        • 2.Bxe4#
      • 1...Sc5
        • 2.Qf2#
      • 1...Sc7
        • 2.Qf7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD::S(E),XR(g)
    • R(g);N_GUARD::S(E)
    • B(f);N_GUARD::S(E),XB(f)
    • B(f);N_GUARD::S(E)
    • S(e);S_CUTB(f)::S(E)
    • S(e);S_CUTR(g)::S(E)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);XS(E)::QAR2(A)
        • S(e);XS(E)::QAR2(A)
      • Refutation
        • R(g);XS(E)
    • Try
      • S(E);
      • Threat
        • QAB1(A)
      • Vars
        • S(e);S_CUTB(f)::QAR(A)
        • S(e);S_CUTR(g)::QAR2(A)
      • Refutation
        • R(g);
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);N_GUARD::S(E),XR(g)
        • P(b);::QAB1(A)
      • Refutation
        • K(d);S_FLIGHT,XS(E)
  • Actual
    • S(E);
    • Threat
      • QAB1(A)
    • Vars
      • R(g);OGATE::B(F),XP(b)
      • S(e);S_CUTB(f)::QAR(A)
      • S(e);S_CUTR(g)::QAR2(A)


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).