MESON Chess Problem Database

Problem Display
PID: 208772 (8/1N3Q2/1K3R2/1pp1pB2/1p1k1p2/1p1P1r2/1R3n2/8 w - - 0 1)

Cook, Eugene Beauharnais

Dubuque Chess Journal, 1876

8/1N3Q2/1K3R2/1pp1pB2/1p1k1p2/1p1P1r2/1R3n2/8

#2

7 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd6+?
      • 1...Kc3
        • 2.Qxb3#
      • 1...Ke3!
    • 1.Qc4+?
      • 1...Ke3
        • 2.Qxc5#
      • 1...bxc4!
  • Keys
    • 1.Qd5+!
      • 1...Kc3
        • 2.Qxe5#
      • 1...Ke3
        • 2.Qxc5#
      • 1...Kxd5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(G),XP(b)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB(G),XP(h)
      • Refutation
        • P(g);XQ(G)
  • Actual
    • Q(G);CHECK
    • Vars
      • K(e);S_FLIGHT::QAB(G),XP(i)
      • K(e);S_FLIGHT::QAB(G),XP(h)
      • K(e);P-FLIGHT,XQ(G)::R1(E)
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).