MESON Chess Problem Database

Problem Display
PID: 160485 (K1B5/3R2rp/3N4/8/6P1/7k/Q5Nn/4BnRb w - - 0 1)

Placanico, Pietro L

Best Problems, 2011

K1B5/3R2rp/3N4/8/6P1/7k/Q5Nn/4BnRb

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4
      • 2.Rxh7#
    • 1...Rg8
      • 2.Rxh7#
    • 1...Bxg2+
      • 2.Qxg2#
    • 1...Sf3
      • 2.Sf4#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qh4#
      • 1...Bxg2+
        • 2.Qxg2#
      • 1...Kxg4
        • 2.Qf5#
      • 1...Rxg4
        • 2.Rxh7#
      • 1...Sf3
        • 2.Sf4#
      • 1...Sg3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);OGATE,XP(E)::R(G),XP(f)
    • R(e);OGATE,P_PINB(I)::R(G),XP(f)
    • B(b);CHECK,OGATE,XS(D)::QAB1(C),XB(b)
    • S(c);N_PINS(D)::S(D)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • B(b);CHECK,OGATE,XS(D)::QAB1(C),XB(b)
      • K(d);OGATEB,S_FLIGHT,XP(E)::QAB1(C)
      • R(e);OGATE,XP(E)::R(G),XP(f)
      • S(c);N_PINS(D)::S(D)
      • S(a);N_GUARD::QAR1(C),XS(a)
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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).