MESON Chess Problem Database

Problem Display
PID: 15591 (8/6pN/6p1/3P1PNp/Q1p2Pk1/2K4p/4R2P/1B2B3 w - - 0 1)

Shanshin, Valery Yurevich

2nd HM., Cherkasskaya Pravda, 1986

8/6pN/6p1/3P1PNp/Q1p2Pk1/2K4p/4R2P/1B2B3

#2

11 + 6

3297 FIDE Album (1986-1988) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qxc4#
  • Tries
    • 1.Sf6+?
      • 1...Kxf4
        • 2.Bd2#
      • 1...gxf6!
    • 1.Rf2?
      • 1...Kh4
        • 2.Rg2#
      • 1...h4
        • 2.Qd1#
      • 1...gxf5!
    • 1.Re4?
      • 1...Kxf5
        • 2.Qd7#
      • 1...gxf5
        • 2.Qd1#
      • 1...h4!
    • 1.Qc2?
      • 1...Kxf4
        • 2.Qe4#
      • 1...gxf5
        • 2.Qxf5#
      • 1...h4!
    • 1.Qd7?
      • 1...Kxf4
        • 2.Re4#
      • 1...gxf5
        • 2.Qxf5#
      • 1...h4!
    • 1.fxg6?
      • 1...Kxf4
        • 2.Qxc4#
      • 1...h4!
  • Keys
    • 1.Qd1!
      • 1...Kxf4
        • 2.Qd4#
      • 1...gxf5
        • 2.Re4#
      • 1...h4
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,P-FLIGHT,P_SPINP(b),XP(G)::QAR(F),XP(b)
  • Tries
    • Try
      • S(K);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(b),XP(G)::B(B)
      • Refutation
        • P(f);XS(K)
    • Try
      • R(C);
      • Vars
        • K(c);P-FLIGHT::B(B)+R(C)
        • P(d);SBLOCK::QAB(F)
      • Refutation
        • P(e);XP(I)
    • Try
      • R(C);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XP(I)::QAB(F)
        • P(e);SBLOCK,XP(I)::QAB(F)
      • Refutation
        • P(d);
    • Try
      • Q(F);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(G)::QAR1(F)
        • P(e);OGATE,XP(I)::QAB1(F),XP(e)
      • Refutation
        • P(d);
    • Try
      • Q(F);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(G)::R1(C)
        • P(e);OGATE,P_SPINP(e),XP(I)::QAB1(F),XP(e)
      • Refutation
        • P(d);
    • Try
      • P(I);XP(e)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINP(b),XP(G)::QAR(F),XP(b)
      • Refutation
        • P(d);
  • Actual
    • Q(F);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(G)::QAR2(F)
      • P(e);SBLOCK,XP(I)::QAB(F)+R(C)
      • P(d);SBLOCK::QAB(F)+R(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).