MESON Chess Problem Database

Problem Display
PID: 161722 (1B3R2/3B4/8/3kP1n1/1Pp4r/K3P1NN/QP6/8 w - - 0 1)

Placanico, Pietro L

Best Problems, 2012

1B3R2/3B4/8/3kP1n1/1Pp4r/K3P1NN/QP6/8

#2

11 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Sxf4#
    • 1...Rh5
      • 2.Sf4#
    • 1...Rh6
      • 2.Sf4#
    • 1...Rh7
      • 2.Sf4#
    • 1...Rh8
      • 2.Sf4#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qxc4#
      • 1...Rxf4
        • 2.Sxf4#
      • 1...Se4!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Rc5#
      • 1...Se4
        • 2.Qxc4#
      • 1...Se6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(b);N_GUARD::S(F),XR(b)
    • R(b);N_GUARD::S(F)
  • Tries
    • Try
      • R(K);
      • Threat
        • QAB1(A),XP(a)
      • Vars
        • R(b);XR(K)::S(F),XR(b)
      • Refutation
        • S(d);
  • Actual
    • R(K);
    • Threat
      • R1(K)
    • Vars
      • S(d);S_CUTR(b)::QAB1(A),XP(a)
      • S(d);SBLOCK::B(I)
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).