MESON Chess Problem Database

Problem Display
PID: 223072 (4Rb2/r1p1n3/1B3p2/2P1kb1R/8/2P2K2/B7/8 w - - 0 1)

Purnell, FJ

Australasian (The), 1885

4Rb2/r1p1n3/1B3p2/2P1kb1R/8/2P2K2/B7/8

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Bxc7#
    • 1...Ra4
      • 2.Bxc7#
    • 1...Ra5
      • 2.Bxc7#
    • 1...Ra8
      • 2.Bxc7#
    • 1...Bh6
      • 2.Rxe7#
    • 1...Bg7
      • 2.Rxe7#
  • Keys
    • 1.Bxa7!
      • 1...Bh6
        • 2.Rxe7#
      • 1...Bg7
        • 2.Rxe7#
      • 1...c6
        • 2.Bb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD,P_PINP(B)::B(F),XP(e)
    • R(d);N_GUARD::B(F),XP(e)
    • B(g);N_GUARD::R(G),XS(f)
  • Actual
    • B(F);XR(d)
    • Vars
      • B(g);N_GUARD::R(G),XS(f)
      • P(e);OGATEB::B(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).