MESON Chess Problem Database

Problem Display
PID: 225753 (8/2p1K3/7N/R2rk3/1r2N3/4BP2/2b5/8 w - - 0 1)

Salai (Snr), Ladislav

Praca, 1952

8/2p1K3/7N/R2rk3/1r2N3/4BP2/2b5/8

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Rxc5#
    • 1...Bxe4
      • 2.f4#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd7#
      • 1...Rd7+
        • 2.Sxd7#
      • 1...Rxc5
        • 2.Rxc5#
      • 1...Rb5
        • 2.f4#
      • 1...Ba4
        • 2.Sd3#
      • 1...Bf5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATEB::R(D),XR(c)
    • B(a);SBLOCK,XS(C)::P(B)
  • Actual
    • S(C);N_PINR(c)
    • Threat
      • S(C)
    • Vars
      • R(c);CHECK::R(D)+S(C),DCHECK,XR(c)
      • R(c);OGATE,P_SPINR(c),XS(C)::R(D),XR(c)
      • R(b);N_GUARD::P(B)
      • B(a);N_GUARD::S(C)
      • B(a);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).