MESON Chess Problem Database

Problem Display
PID: 157169 (2r5/5p2/2p2P2/3N1K2/1QPk4/4p3/4P3/8 w - - 0 1)

Agostini, Valerio

SEPA-80 JT (Problemas), 2013-2014

2r5/5p2/2p2P2/3N1K2/1QPk4/4p3/4P3/8

#2

6 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...cxd5
      • 2.c5#
    • 1...c5
      • 2.Qc3#
  • Tries
    • 1.Sc3?
      • threat
        • 2.c5#
      • 1...c5
        • 2.Sb5#
      • 1...Rb8!
    • 1.Se7?
      • threat
        • 2.c5#
      • 1...Rb8
        • 2.Sxc6#
      • 1...c5!
  • Keys
    • 1.Sb6!
      • threat
        • 2.c5#
      • 1...c5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK,XS(D)::QAR(B)+P(C)
    • P(c);SBLOCK::QAB1(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR(B)+P(C)
      • Vars
        • P(c);N_GUARD::S(D)
      • Refutation
        • R(e);
    • Try
      • S(D);
      • Threat
        • QAR(B)+P(C)
      • Vars
        • R(e);N_GUARD::S(D),XP(c)
      • Refutation
        • P(c);
  • Actual
    • S(D);
    • Threat
      • QAR(B)+P(C)
    • Vars
      • P(c);SBLOCK::QAB(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).