MESON Chess Problem Database

Problem Display
PID: 222797 (1BBR4/8/1N3pr1/1p3Pp1/2p1k3/2r1P3/2n2K2/8 w - - 0 1)

Wheeler, Charles Henry

St. Louis Globe Democrat, 1884

1BBR4/8/1N3pr1/1p3Pp1/2p1k3/2r1P3/2n2K2/8

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Re8#
    • 1...Sa1
      • 2.Rd4#
    • 1...Se1
      • 2.Rd4#
    • 1...Sa3
      • 2.Rd4#
    • 1...Sb4
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
  • Tries
    • 1.Sa4?
      • threat
        • 2.Sxc3#
        • 2.Sc5#
      • 1...Rxe3
        • 2.Sc5#
      • 1...Sd4
        • 2.Sc5#
        • 2.Rxd4#
      • 1...Ra3
        • 2.Sc5#
      • 1...Rb3
        • 2.Sc5#
      • 1...Rd3
        • 2.Sc5#
      • 1...b4
        • 2.Sc5#
      • 1...bxa4!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Bb7#
      • 1...Kxf5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(b);SBLOCK::R(G)
    • S(a);N_GUARD::R1(G)
    • S(a);N_GUARD::R1(G),XS(a)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(B)::S(D)
        • R(b);::S(D)
        • P(e);::S(D)
      • Refutation
        • P(e);XS(D)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::R(G)+S(D),DCHECK
      • K(d);S_FLIGHT::B(F)
      • K(d);S_FLIGHT,XP(C)::B(F)+S(D)
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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).