MESON Chess Problem Database

Problem Display
PID: 257897 (1nKN4/1rp5/3kP1Nn/r7/1p1B2p1/1B6/6q1/2R4b w - - 0 1)

Andrade, Barry Jack da Costa

British Chess Magazine, 1934

1nKN4/1rp5/3kP1Nn/r7/1p1B2p1/1B6/6q1/2R4b

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bc5#
      • 2.Be5#
    • 1...Ra2
      • 2.Bc5#
      • 2.Be5#
    • 1...Ra3
      • 2.Bc5#
      • 2.Be5#
    • 1...Ra4
      • 2.Bc5#
      • 2.Be5#
    • 1...Rc5
      • 2.Bxc5#
    • 1...Re5
      • 2.Bxe5#
    • 1...Ra6
      • 2.Bc5#
      • 2.Be5#
    • 1...Raa7
      • 2.Bc5#
      • 2.Be5#
    • 1...Ra8
      • 2.Bc5#
      • 2.Be5#
    • 1...Sf5
      • 2.Sf7#
    • 1...Sf7
      • 2.Sxf7#
    • 1...Sg8
      • 2.Sf7#
    • 1...Sc6
      • 2.Sxb7#
    • 1...c5
      • 2.Be5#
    • 1...c6
      • 2.Sxb7#
  • Tries
    • 1.Rc6+?
      • 1...Sxc6
        • 2.Sxb7#
      • 1...Qxc6!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Be7#
      • 1...Sf5
        • 2.Sf7#
      • 1...Sg8
        • 2.Sf7#
      • 1...Sc6
        • 2.Sxb7#
      • 1...c5
        • 2.Be5#
      • 1...c6
        • 2.Sxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::B(C),XR(e)
    • S(g);N_GUARD::S(G)
    • S(g);N_GUARD::S(G),XS(g)
    • S(j);S_CUTQ(b)::S(G),XR(h)
    • P(i);S_CUTR(e)::B(C)
    • P(i);S_CUTQ(b)::S(G),XR(h)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • S(j);SBLOCK,XR(A)::S(G),XR(h)
      • Refutation
        • Q(b);XR(A)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • S(g);N_GUARD::S(G)
      • S(j);S_CUTQ(b)::S(G),XR(h)
      • P(i);S_CUTR(e)::B(C)
      • P(i);S_CUTQ(b)::S(G),XR(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).