Problem Display
PID: 63467 (7q/2RRp1P1/3b4/1n3B2/QN3p2/2p2k2/2P1p1p1/K3BN2 w - - 0 1)

Velimirovic, Milan

3/4 HM., Buletin Problemistic, 1974

7q/2RRp1P1/3b4/1n3B2/QN3p2/2p2k2/2P1p1p1/K3BN2

#2

10 + 9


3771 FIDE Album (1974-1976) 1980

SOLUTION


  • SOUND
  • Sets
    • 1...Qxg7
      • 2.Qa8#
    • 1...Qh1
      • 2.Qa8#
    • 1...Qh2
      • 2.Qa8#
    • 1...Qh3
      • 2.Qa8#
    • 1...Qh4
      • 2.Qa8#
    • 1...Qh5
      • 2.Qa8#
    • 1...Qh6
      • 2.Qa8#
    • 1...Qh7
      • 2.Qa8#
    • 1...Qa8
      • 2.Qxa8#
    • 1...Bxb4
      • 2.Rd3#
    • 1...Be5
      • 2.Rd3#
    • 1...Bxc7
      • 2.Rd3#
    • 1...Sa3
      • 2.Rxc3#
      • 2.Qc6#
    • 1...Sd4
      • 2.Rxc3#
    • 1...Sa7
      • 2.Rxc3#
  • Tries
    • 1.Sd2+?
      • 1...Ke3
        • 2.Sd5#
      • 1...cxd2!
    • 1.Sh2+?
      • 1...Ke3
        • 2.Sd5#
      • 1...Qxh2!
    • 1.Sd3?
      • threat
        • 2.Qe4#
      • 1...Qa8
        • 2.Qxa8#
      • 1...Bb4
        • 2.Se5#
      • 1...Sd4!
    • 1.Sd5?
      • threat
        • 2.Qe4#
      • 1...Qa8
        • 2.Sh2#
      • 1...Sd4
        • 2.Rxc3#
      • 1...Bb4!
    • 1.Sa6?
      • threat
        • 2.Qe4#
      • 1...Bb4
        • 2.Rd3#
      • 1...Sd4
        • 2.Rxc3#
      • 1...Qa8!
    • 1.Sc6?
      • threat
        • 2.Qe4#
      • 1...Bb4
        • 2.Se5#
        • 2.Rd3#
      • 1...Sd4
        • 2.Sxd4#
      • 1...Qa8!
  • Keys
    • 1.Sa2!
      • threat
        • 2.Qe4#
      • 1...Qa8
        • 2.Qxa8#
      • 1...Bb4
        • 2.Rd3#
      • 1...Sd4
        • 2.Rxc3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(i);N_GUARD,XP(J)::QAB(E)
    • Q(i);N_GUARD::QAB(E)
    • Q(i);N_GUARD,P_PINQ(E)::QAB(E),XQ(i)
    • B(g);OGATE,XS(F)::R(I)
    • B(g);OGATE::R(I)
    • B(g);OGATE,XR(H)::R(I)
    • S(f);N_GUARD::R(H),XP(c)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(F)
      • Refutation
        • P(c);P_PINP(J),XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(F)
      • Refutation
        • Q(i);XS(C)
    • Try
      • S(F);
      • Threat
        • QAB1(E)
      • Vars
        • Q(i);N_GUARD,P_PINQ(E)::QAB(E),XQ(i)
        • B(g);N_GUARD::S(F)
      • Refutation
        • S(f);
    • Try
      • S(F);
      • Threat
        • QAB1(E)
      • Vars
        • Q(i);N_GUARD,P_PINQ(E)::S(C)
        • S(f);N_GUARD::R(H),XP(c)
      • Refutation
        • B(g);
    • Try
      • S(F);
      • Threat
        • QAB1(E)
      • Vars
        • B(g);OGATE::R(I)
        • S(f);N_GUARD::R(H),XP(c)
      • Refutation
        • Q(i);
    • Try
      • S(F);
      • Threat
        • QAB1(E)
      • Vars
        • S(f);N_GUARD::S(F),XS(f)
      • Refutation
        • Q(i);P_PINQ(E)
  • Actual
    • S(F);
    • Threat
      • QAB1(E)
    • Vars
      • Q(i);N_GUARD::QAB(E),XQ(i)
      • B(g);OGATE::R(I)
      • S(f);N_GUARD::R(H),XP(c)


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).