MESON Chess Problem Database

Problem Display
PID: 86726 (r7/4B3/b1P5/2RP4/1k3N2/8/1KB1p3/7R w - - 0 1)

Lamba, Stelian

Sinfonie Scacchistiche, 1976

r7/4B3/b1P5/2RP4/1k3N2/8/1KB1p3/7R

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxd3#
    • 1...Bb7
      • 2.Sd3#
    • 1...Bc8
      • 2.Sd3#
  • Tries
    • 1.Rh4?
      • threat
        • 2.Sd3#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Bb5!
    • 1.Rb5+?
      • 1...Kc4
        • 2.Rb4#
      • 1...Kxb5!
  • Keys
    • 1.Ra1!
      • threat
        • 2.Ra4#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Bc4
        • 2.Rca5#
      • 1...Bb5
        • 2.Rc3#
      • 1...Bb7
        • 2.Sd3#
      • 1...Bc8
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::S(D),XB(c)
    • B(c);N_GUARD::S(D)
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)+S(D),DCHECK
      • Vars
        • B(c);::R(A)+S(D),DCHECK,XB(c)
      • Refutation
        • B(c);
    • Try
      • R(E);CHECK
      • Vars
        • K(b);P-FLIGHT::R1(E)
      • Refutation
        • K(b);P-FLIGHT,XR(E)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • B(c);N_GUARD::S(D),XB(c)
      • B(c);SBLOCK::B(H)+R(E)
      • B(c);N_GUARD::S(D)
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).