MESON Chess Problem Database

Problem Display
PID: 70857 (3N4/1q1np3/1p1p1pNn/3k1p1R/2R5/1BK5/6p1/8 w - - 0 1)

Leites, Samuil Davidovich

Sinfonie Scacchistiche, 1976

3N4/1q1np3/1p1p1pNn/3k1p1R/2R5/1BK5/6p1/8

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Rd4#
    • 1...Se5
      • 2.Sf4#
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sef4#
      • 1...Kxe6
        • 2.Re4#
        • 2.Rc6#
      • 1...Sc5!
    • 1.Bd1?
      • threat
        • 2.Bf3#
      • 1...Sc5
        • 2.Rd4#
      • 1...Se5
        • 2.Sf4#
      • 1...e5
        • 2.Se7#
      • 1...g1S!
    • 1.Rxf5+?
      • 1...Se5
        • 2.Sf4#
      • 1...e5
        • 2.Sf4#
        • 2.Se7#
      • 1...Sxf5!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Be4#
      • 1...Sc5
        • 2.Rd4#
      • 1...Se5
        • 2.Sf4#
      • 1...e5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(i);SBLOCK::B(A)+R(C),DCHECK
    • S(i);N_SPINP(c),SBLOCK::S(E)
    • P(j);N_SPINP(c),SBLOCK::S(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Refutation
        • S(i);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(i);SBLOCK::R1(C)
        • S(i);N_SPINP(c),SBLOCK::S(E)
        • P(j);N_SPINP(c),SBLOCK::S(E)
      • Refutation
        • P(a);
    • Try
      • R(D);CHECK,XP(c)
      • Vars
        • S(i);P_SPINS(i)::S(E)
      • Refutation
        • S(g);XR(D)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • S(i);SBLOCK::R1(C)
      • S(i);N_SPINP(c),SBLOCK::S(E)
      • P(j);N_SPINP(c),SBLOCK::S(E)
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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).