MESON Chess Problem Database

Problem Display
PID: 267632 (8/3RpN2/8/8/2P1k1K1/r5p1/5b2/2B2N2 w - - 0 1)

Bottacchi, Antonio

Sacchetti, Lidia

Pro Familia, 1918

8/3RpN2/8/8/2P1k1K1/r5p1/5b2/2B2N2

#2

6 + 5

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sd2#
    • 1...Be3
      • 2.Sxg3#
    • 1...e5
      • 2.Sg5#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Sd2#
        • 2.Sg5#
      • 1...Ra2
        • 2.Sg5#
      • 1...Rd3
        • 2.Sg5#
      • 1...Ra5
        • 2.Sd2#
      • 1...Be1
        • 2.Sg5#
      • 1...Be3
        • 2.Sxg3#
        • 2.Sg5#
      • 1...Bd4!
    • 1.Rd5?
      • threat
        • 2.Sg5#
      • 1...Be3
        • 2.Sxg3#
      • 1...Bd4!
  • Keys
    • 1.Be3!
      • threat
        • 2.Rd4#
      • 1...Rxe3
        • 2.Sd2#
      • 1...Bxe3
        • 2.Sxg3#
      • 1...Rd3
        • 2.Rxe7#
      • 1...e5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::S(B)
    • B(a);N_GUARD,S_CUTR(b)::S(B),XP(c)
    • P(e);SBLOCK::S(F)
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::S(F)
        • R(b);::S(B)
        • B(a);::S(F)
      • Refutation
        • B(a);
    • Try
      • R(E);
      • Threat
        • S(F)
      • Vars
        • B(a);N_GUARD,S_CUTR(b)::S(B),XP(c)
      • Refutation
        • B(a);
  • Actual
    • B(A);
    • Threat
      • R1(E)
    • Vars
      • R(b);SBLOCK,XB(A)::S(B)
      • B(a);N_GUARD,SBLOCK,XB(A)::S(B),XP(c)
      • R(b);SBLOCK::R(E),XP(e)
      • P(e);SBLOCK::S(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).