MESON Chess Problem Database

Problem Display
PID: 98768 (qbB5/1p6/n5Rp/n2kP2r/5RNp/2P5/b4B2/6K1 w - - 0 1)

Shire, David J

US Problem Bulletin, 1992

qbB5/1p6/n5Rp/n2kP2r/5RNp/2P5/b4B2/6K1

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rxd6#
    • 1...Ba7
      • 2.Rd6#
    • 1...Sb3
      • 2.c4#
    • 1...Sc6
      • 2.Be6#
    • 1...Sc5
      • 2.Rd4#
    • 1...Sc7
      • 2.Rd6#
  • Tries
    • 1.Rb6?
      • threat
        • 2.Be6#
      • 1...Rxe5
        • 2.Sf6#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rd4#
      • 1...Sc7
        • 2.Rd6#
      • 1...Sc6!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Rd4#
      • 1...Bxe5
        • 2.Se3#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Sb3
        • 2.c4#
      • 1...Sc6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(j);N_GUARD::R1(G),XB(j)
    • B(j);N_GUARD,P_PINB(B)::R1(G)
    • S(c);N_GUARD,S_CUTB(a)::P(C)
    • S(c);SBLOCK::B(H)
    • S(f);SBLOCK::R1(D)
    • S(f);S_CUTB(j)::R1(G)
  • Tries
    • Try
      • R(G);
      • Threat
        • B(H)
      • Vars
        • R(e);SBLOCK,XP(F)::S(E)
        • B(j);N_GUARD::R1(G),XB(j)
        • S(f);SBLOCK::R1(D)
        • S(f);S_CUTB(j)::R1(G)
      • Refutation
        • S(c);
  • Actual
    • B(B);
    • Threat
      • R1(D)
    • Vars
      • B(j);SBLOCK,XP(F)::S(E)
      • B(j);N_GUARD::R1(G),XB(j)
      • S(c);N_GUARD,S_CUTB(a)::P(C)
      • S(c);SBLOCK::B(H)
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).