MESON Chess Problem Database

Problem Display
PID: 15669 (8/2NQ1N1B/3P1Pr1/R7/4qk2/5P1R/3P2nK/1b6 w - - 0 1)

Fokin, Yuri Georgievich

Sushkov, Yuri Akimovich

1st Prize, Themes-64, 1986

8/2NQ1N1B/3P1Pr1/R7/4qk2/5P1R/3P2nK/1b6

#2

11 + 5

4849 The Sushkov Theme 1999
133 The Problemist Supplement 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Sd5#
      • 2.Se6#
    • 1...Qd3
      • 2.Se6#
    • 1...Qd5
      • 2.Sxd5#
    • 1...Qc6
      • 2.Se6#
    • 1...Qb7
      • 2.Se6#
    • 1...Qa8
      • 2.Se6#
    • 1...Qe1
      • 2.Sd5#
    • 1...Qe2
      • 2.Sd5#
    • 1...Qe3
      • 2.Sd5#
    • 1...Qa4
      • 2.Sd5#
      • 2.Se6#
    • 1...Qb4
      • 2.Sd5#
      • 2.Se6#
    • 1...Qd4
      • 2.Se6#
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qe7
      • 2.Sd5#
    • 1...Qe8
      • 2.Sd5#
    • 1...Rg4
      • 2.Qxg4#
    • 1...Rxf6
      • 2.Qg4#
    • 1...Rh6
      • 2.Qg4#
  • Tries
    • 1.Ra4?
      • threat
        • 2.Sd5#
      • 1...Rg3
        • 2.Qf5#
      • 1...Rg5
        • 2.Se6#
      • 1...Ba2
        • 2.Rxe4#
      • 1...Se3!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Se6#
      • 1...Rxf6
        • 2.Sd5#
      • 1...Rg3
        • 2.Rf5#
      • 1...Ba2
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 14
  • Sets
    • Q(c);N_GUARD::S(H)
    • Q(c);N_GUARD::S(H),XQ(c)
    • R(e);N_GUARD::QAR1(I),XR(e)
    • R(e);N_GUARD,XP(G)::QAR1(I)
    • R(e);N_GUARD,P_PINR(D)::QAR1(I)
  • Tries
    • Try
      • R(E);P_PINQ(c)
      • Threat
        • S(H)
      • Vars
        • R(e);::QAR1(I)
        • R(e);::S(H)
        • B(a);N_GUARD::R1(E),XQ(c)
      • Refutation
        • S(b);
  • Actual
    • Q(I);P_PINQ(c)
    • Threat
      • S(H)
    • Vars
      • R(e);XP(G)::S(H)
      • R(e);::R1(E)
      • B(a);N_GUARD::QAR1(I),XQ(c)
HTML5 logo

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).