MESON Chess Problem Database

Problem Display
PID: 168328 (1R4b1/1p6/6r1/5r2/p1P5/Nkp2B1R/2N5/K3B3 w - - 0 1)

Petite, Efren

StrateGems, 2002

1R4b1/1p6/6r1/5r2/p1P5/Nkp2B1R/2N5/K3B3

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bd5?
      • threat
        • 2.Rxc3#
      • 1...Rg3
        • 2.Rxb7#
      • 1...Rf3!
    • 1.Bc6?
      • threat
        • 2.Rxc3#
      • 1...Rf3
        • 2.Rxb7#
      • 1...Rg3!
    • 1.Rxb7+?
      • 1...Rb5
        • 2.Rxb5#
      • 1...Rb6!
  • Keys
    • 1.Bxb7!
      • threat
        • 2.Rxc3#
      • 1...Rf3
        • 2.Bc6#
      • 1...Rg3
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);N_PINP(f),P_PINP(b)
      • Threat
        • R1(F),XP(b)
      • Vars
        • R(e);N_GUARD,N_SPINP(b),P_SPINP(f)::R(H),XP(f)
      • Refutation
        • R(d);N_SPINP(b),P_SPINP(f)
    • Try
      • B(E);N_PINP(f),P_PINP(b)
      • Threat
        • R1(F),XP(b)
      • Vars
        • R(d);N_GUARD,N_SPINP(b),P_SPINP(f)::R(H),XP(f)
      • Refutation
        • R(e);N_SPINP(b),P_SPINP(f)
    • Try
      • R(H);CHECK,XP(f)
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::R(H),XR(d)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • B(E);P_PINP(b),XP(f)
    • Threat
      • R1(F),XP(b)
    • Vars
      • R(d);N_GUARD,N_SPINP(b)::R(H)+B(E)
      • R(e);N_GUARD,N_SPINP(b)::R(H)+B(E)
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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).