MESON Chess Problem Database

Problem Display
PID: 267058 (6r1/5N2/6Q1/4R1q1/Rn3nkp/3B3p/7P/3K4 w - - 0 1)

Castellari, Umberto

Problemas, 1950

6r1/5N2/6Q1/4R1q1/Rn3nkp/3B3p/7P/3K4

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Be2#
    • 1...Sc2
      • 2.Be2#
    • 1...Sbd5
      • 2.Be2#
    • 1...Sa6
      • 2.Be2#
    • 1...Sc6
      • 2.Be2#
  • Keys
    • 1.Qe4!
      • threat
        • 2.Be2#
      • 1...Kh5
        • 2.Qf3#
      • 1...Sxd3
        • 2.Qe2#
      • 1...Qd8
        • 2.Sh6#
      • 1...Rd8
        • 2.Rxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(b);P_SPINS(c)::B(C)
  • Actual
    • Q(F);N_PINQ(f),P_PINS(c)
    • Threat
      • B(C)
    • Vars
      • K(d);N_GUARD,N_SPINS(c),P_SPINQ(f),S_FLIGHT::QAB(F)
      • S(b);XB(C)::QAB(F)
      • Q(f);N_GUARD,P_PINB(C)::S(G)
      • R(g);N_GUARD,P_PINB(C)::R1(E),XQ(f)
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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).