MESON Chess Problem Database

Problem Display
PID: 67461 (8/8/1p2p3/1P2Q3/p1k3p1/PN3pP1/1P3N1n/R3Kn2 w Q - 0 1)

Chepizhni, Viktor Ivanovich

3rd Prize, Lebedkin MT, 1995-1996

8/8/1p2p3/1P2Q3/p1k3p1/PN3pP1/1P3N1n/R3Kn2

#2

9 + 8

5418 FIDE Album (1995-1997) (Annexe) 2004
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb3
      • 2.Qc3#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Se3
      • 2.Sd2#
    • 1...Sxg3
      • 2.Sd2#
    • 1...axb3
      • 2.Rc1#
  • Tries
    • 1.Kd1?
      • 1...Kxb3
        • 2.Qc3#
      • 1...Sxg3
        • 2.Sd2#
      • 1...axb3
        • 2.Rc1#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Se3+!
    • 1.Rb1?
      • 1...Sxg3
        • 2.Sd2#
      • 1...axb3
        • 2.Rc1#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Kxb3!
    • 1.Rd1?
      • 1...Sxg3
        • 2.Sd2#
      • 1...axb3
        • 2.Rc1#
        • 2.Rd4#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Kxb3!
    • 1.Qc3+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb5!
    • 1.Qd4+?
      • 1...Kxb3
        • 2.Qc3#
      • 1...Kxb5!
    • 1.Qc5+?
      • 1...Kxb3
        • 2.Qc3#
      • 1...bxc5!
  • Keys
    • 1.0-0-0!
      • 1...Kxb3
        • 2.Qxe6#
      • 1...Sxg3
        • 2.Sd2#
      • 1...axb3
        • 2.Rd4#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Se3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT,XS(F)::QAR1(I)
    • S(a);N_GUARD::S(F),XS(a)
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD,XP(G)::S(F)
    • P(d);SBLOCK,XS(F)::R(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(e);S_FLIGHT,XS(F)::QAR1(I)
        • S(a);N_GUARD,XP(G)::S(F)
        • P(d);SBLOCK,XS(F)::R(A)
        • S(a);N_GUARD::S(F),XS(a)
      • Refutation
        • S(a);CHECK
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD,XP(G)::S(F)
        • P(d);SBLOCK,XS(F)::R(A)
        • S(a);N_GUARD::S(F),XS(a)
        • S(a);N_GUARD::S(F)
      • Refutation
        • K(e);S_FLIGHT,XS(F)
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD,XP(G)::S(F)
        • S(a);N_GUARD::S(F),XS(a)
        • S(a);N_GUARD::S(F)
      • Refutation
        • K(e);S_FLIGHT,XS(F)
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(I)
      • Refutation
        • K(e);S_FLIGHT,XP(H)
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);S_FLIGHT,XS(F)::QAR1(I)
      • Refutation
        • K(e);S_FLIGHT,XP(H)
    • Try
      • Q(I);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT,XS(F)::QAR1(I)
      • Refutation
        • P(g);XQ(I)
  • Actual
    • K(B);0-0-0
    • Vars
      • K(e);S_FLIGHT,XS(F)::QAB(I),XP(h)
      • S(a);N_GUARD,XP(G)::S(F)
      • P(d);SBLOCK,XS(F)::R1(A)
      • S(a);N_GUARD::S(F),XS(a)
      • S(a);N_GUARD::S(F)
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).