MESON Chess Problem Database

Problem Display
PID: 222576 (8/8/B7/b3p3/kr6/p7/QR2r2p/4n2K w - - 0 1)

Cook, Eugene Beauharnais

New Orleans Times-Democrat, 1883

8/8/B7/b3p3/kr6/p7/QR2r2p/4n2K

#2

4 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Qxb3#
    • 1...Rc4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Rd4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Re4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Rf4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Rg4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Rh4
      • 2.Bb5#
      • 2.Qb3#
    • 1...Rb5
      • 2.Bxb5#
  • Tries
    • 1.Rxb4+?
      • 1...Kxb4
        • 2.Qc4#
      • 1...Bxb4!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Bb5#
      • 1...axb2
        • 2.Qa2#
      • 1...Bb6
        • 2.Qxb4#
      • 1...Bc7
        • 2.Qxb4#
      • 1...Bd8
        • 2.Qxb4#
      • 1...a2
        • 2.Qxa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD::QAB1(B),XR(f)
    • R(f);N_GUARD::B(D),XR(f)
  • Tries
    • Try
      • R(C);CHECK,XR(f)
      • Vars
        • K(e);N_SPINP(d),P-FLIGHT,XR(C)::QAR1(B)
      • Refutation
        • B(g);XR(C)
  • Actual
    • Q(B);N_PINP(d),P_PINR(f)
    • Threat
      • B(D)
    • Vars
      • P(d);OGATEB,XR(C)::QAR2(B)
      • B(g);N_GUARD::QAR1(B),XR(f)
      • P(d);OGATEB::QAR2(B),XP(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).