MESON Chess Problem Database

Problem Display
PID: 157296 (2B5/N1R5/8/3k2n1/K1p2Q2/1P3p2/1pr1rp2/3bb3 w - - 0 1)

Petite, Efren

Problemas, 1953

2B5/N1R5/8/3k2n1/K1p2Q2/1P3p2/1pr1rp2/3bb3

#2

6 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.bxc4#
    • 1...Se6
      • 2.Bb7#
  • Tries
    • 1.Rd7+?
      • 1...Kc5
        • 2.Qd6#
        • 2.Qc7#
        • 2.Qd4#
      • 1...Ke6!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Qd4#
      • 1...Rcd2
        • 2.Sc3#
      • 1...Red2
        • 2.Qf5#
      • 1...Re4
        • 2.Qd6#
      • 1...Bc3
        • 2.bxc4#
      • 1...Se4
        • 2.Qf5#
      • 1...Se6
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);S_CUTR(d)::P(A),XP(h)
    • S(j);SBLOCK::B(F)
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(i);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(C)
    • Vars
      • R(d);N_GUARD,P_PINP(A),S_CUTB(b)::S(D)
      • R(e);N_GUARD::QAR2(C)
      • R(e);SBLOCK::QAR1(C)
      • B(b);S_CUTR(d)::P(A),XP(h)
      • S(j);S_CUTR(e)::QAR2(C)
      • S(j);SBLOCK::B(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).