MESON Chess Problem Database

Problem Display
PID: 198164 (R1n5/b1N1p3/1Qpr4/3pr3/k2Np2q/pp4pP/8/3R2K1 w - - 0 1)

Fontana, Alessandro

L'Italia Scacchistica, 1920

R1n5/b1N1p3/1Qpr4/3pr3/k2Np2q/pp4pP/8/3R2K1

#2

7 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Qb5#
  • Keys
    • 1.Sc2!
      • threat
        • 2.Rd4#
      • 1...Sxb6
        • 2.Rxa7#
      • 1...e3
        • 2.Qa6#
      • 1...d4
        • 2.Qb4#
      • 1...c5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(i);N_GUARD::QAB1(E)
  • Actual
    • S(D);P_SPINQ(E)
    • Threat
      • R(A)
    • Vars
      • S(m);N_GUARD,XQ(E)::R(G),XB(k)
      • P(e);N_PINQ(E)::QAR2(E)
      • P(g);N_PINQ(E)::QAR1(E)
      • P(i);N_PINQ(E)::QAB1(E)
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).