MESON Chess Problem Database

Problem Display
PID: 180370 (B5N1/8/2n5/3PPp2/1pRPkp2/1R1Np3/8/2Q4K w - - 0 1)

Lider, Valentin Viktorovich

Sinfonie Scacchistiche, 1975

B5N1/8/2n5/3PPp2/1pRPkp2/1R1Np3/8/2Q4K

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd4
      • 2.d6#
    • 1...f3
      • 2.Sf6#
  • Tries
    • 1.Sc5+?
      • 1...Kxd5
        • 2.Sf6#
        • 2.Se7#
      • 1...Kf3!
  • Keys
    • 1.Qc2!
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5
        • 2.Sxf4#
      • 1...Sxd4
        • 2.d6#
      • 1...Sxe5
        • 2.Sxe5#
      • 1...e2
        • 2.Sxb4#
      • 1...Sa5
        • 2.Se1#
      • 1...Sa7
        • 2.Se1#
      • 1...Se7
        • 2.Se1#
      • 1...Sb8
        • 2.Se1#
      • 1...Sd8
        • 2.Se1#
      • 1...f3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(f);P_SPINS(f),XP(F)::B(I)+P(G)
    • P(d);SBLOCK::S(J)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::QAB1(A)
      • K(c);P_SPINS(f),S_FLIGHT,XP(G)::S(D),XP(d)
      • S(f);P_SPINS(f),XP(F)::B(I)+P(G)
      • S(f);XP(H)::QAB(A)+S(D),XS(f)
      • P(a);::QAB(A)+S(D),XP(b)
      • S(f);::QAB(A)+S(D)
      • P(d);SBLOCK::S(J)
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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).