MESON Chess Problem Database

Problem Display
PID: 239013 (6r1/7p/3R4/1pP1krnR/1K2p1BB/2N1P1n1/5N1b/8 w - - 0 1)

Petite, Efren

Problemas, 2014

6r1/7p/3R4/1pP1krnR/1K2p1BB/2N1P1n1/5N1b/8

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf2
      • 2.Re6#
    • 1...Rf3
      • 2.Re6#
    • 1...Rf4
      • 2.Re6#
    • 1...Rf6
      • 2.Rd5#
    • 1...Rf7
      • 2.Re6#
    • 1...Rff8
      • 2.Re6#
    • 1...Sf3
      • 2.Bf6#
    • 1...Sh3
      • 2.Bf6#
    • 1...Se6
      • 2.Rd5#
    • 1...Sf7
      • 2.Bf6#
  • Tries
    • 1.Bxg3+?
      • 1...Rf4
        • 2.Re6#
        • 2.exf4#
      • 1...Bxg3!
  • Keys
    • 1.Bh3!
      • threat
        • 2.Sg4#
      • 1...Rxf2
        • 2.Re6#
      • 1...Sxh3
        • 2.Bf6#
      • 1...Rf3
        • 2.Re6#
      • 1...Rf4
        • 2.Re6#
      • 1...Rf6
        • 2.Rd5#
      • 1...Rf7
        • 2.Re6#
      • 1...Rff8
        • 2.Re6#
      • 1...Sf3
        • 2.Bf6#
      • 1...Se6
        • 2.Rd5#
      • 1...Sf7
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(f);P_SPINS(g),XS(A)::R1(I)
    • R(f);P_SPINS(g)::R1(I)
    • R(f);P_SPINS(g),SBLOCK::R1(I)
    • S(g);OGATE,P_SPINR(f)::B(F)
    • S(g);P_SPINR(f),SBLOCK::R1(I)
  • Tries
    • Try
      • B(F);CHECK,XS(b)
      • Refutation
        • B(a);XB(F)
  • Actual
    • B(E);
    • Threat
      • S(A)
    • Vars
      • R(f);P_SPINS(g),XS(A)::R1(I)
      • S(g);OGATE,P_SPINR(f),XB(E)::B(F)
      • R(f);P_SPINS(g)::R1(I)
      • R(f);P_SPINS(g),SBLOCK::R1(I)
      • S(g);OGATE,P_SPINR(f)::B(F)
      • S(g);P_SPINR(f),SBLOCK::R1(I)
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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).