MESON Chess Problem Database

Problem Display
PID: 42895 (4Q3/4p3/2P3p1/4kNN1/1P5P/4p3/4K3/2R1B1R1 w - - 0 1)

Livshits, Eduard Yakovlevich

5th HM., FIDE Ty., 1958

4Q3/4p3/2P3p1/4kNN1/1P5P/4p3/4K3/2R1B1R1

#2

10 + 4

3147 Chess Problems: Introduction to an Art 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Rc5#
  • Tries
    • 1.Sxe3?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Qh8#
      • 1...e6!
    • 1.Bc3+?
      • 1...Kf4
        • 2.Rcf1#
      • 1...Kxf5
        • 2.Rcf1#
        • 2.Qf7#
        • 2.Qf8#
      • 1...Kd5!
    • 1.Bg3+?
      • 1...Kd5
        • 2.Rc5#
        • 2.Rgd1#
        • 2.Qd7#
        • 2.Qd8#
      • 1...Kf6
        • 2.Qf7#
        • 2.Qf8#
      • 1...Kxf5!
    • 1.Rc5+?
      • 1...Kf6
        • 2.Qf7#
        • 2.Qxe7#
        • 2.Qf8#
        • 2.Qh8#
      • 1...Kf4!
    • 1.Rf1?
      • 1...Kd5
        • 2.Rc5#
      • 1...Kf6
        • 2.Qxe7#
        • 2.Qh8#
      • 1...e6
        • 2.Qxe6#
      • 1...gxf5!
    • 1.Qxe7+?
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd5
        • 2.Rc5#
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qe4#
        • 2.Qe6#
      • 1...Kxf5!
  • Keys
    • 1.Sxe7!
      • 1...Kd4
        • 2.Qh8#
      • 1...Kf4
        • 2.Qb8#
      • 1...Kd6
        • 2.Bg3#
      • 1...Kf6
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINP(d),P-FLIGHT::R1(A)
  • Tries
    • Try
      • S(G);XP(a)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::B(B)
        • K(b);N_SPINP(d),S_FLIGHT::QAB(J)
      • Refutation
        • P(d);
    • Try
      • B(B);CHECK
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::R(A)
      • Refutation
        • K(b);N_SPINP(d),P-FLIGHT
    • Try
      • B(B);CHECK
      • Refutation
        • K(b);N_SPINP(d),P-FLIGHT,XS(G)
    • Try
      • R(A);CHECK
      • Refutation
        • K(b);N_SPINP(d),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINP(d),P-FLIGHT::R1(A)
        • P(d);OGATE::QAR1(J),XP(d)
      • Refutation
        • P(c);XS(G)
    • Try
      • Q(J);CHECK,XP(d)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(J)
      • Refutation
        • K(b);P-FLIGHT,XS(G)
  • Actual
    • S(G);XP(d)
    • Vars
      • K(b);S_FLIGHT::QAB(J)
      • K(b);S_FLIGHT::B(B)
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).