MESON Chess Problem Database

Problem Display
PID: 188436 (8/2K5/2R1N1BB/8/3pp3/3k2n1/1p4R1/2bN1n2 w - - 0 1)

Charosh, Mannis

To Alain White, 1945

8/2K5/2R1N1BB/8/3pp3/3k2n1/1p4R1/2bN1n2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sxb2#
    • 1...Be3
      • 2.Sxb2#
    • 1...Bf4+
      • 2.Sxf4#
    • 1...Sd2
      • 2.Sf4#
    • 1...Se3
      • 2.Sf4#
    • 1...Se2
      • 2.Sf2#
  • Tries
    • 1.Rd2+?
      • 1...Sxd2
        • 2.Sf4#
      • 1...Bxd2!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Sc5#
      • 1...Bf4+
        • 2.Sxf4#
      • 1...Bd2
        • 2.Sxb2#
      • 1...Sd2
        • 2.Sf4#
      • 1...Se2
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::S(A),XP(c)
    • B(a);CHECK,N_GUARD::S(D),XB(a)
    • S(b);S_CUTB(a)::S(D)
    • S(e);SBLOCK::S(A)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • S(b);SBLOCK,XR(B)::S(D)
      • Refutation
        • B(a);XR(B)
  • Actual
    • B(E);N_PINP(g)
    • Threat
      • S(D)
    • Vars
      • B(a);CHECK,N_GUARD::S(D),XB(a)
      • B(a);N_GUARD::S(A),XP(c)
      • S(b);S_CUTB(a)::S(D)
      • S(e);SBLOCK::S(A)
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).