MESON Chess Problem Database

Problem Display
PID: 2226 (8/1B6/4p3/3pp1Q1/3P2P1/N2k4/K1R5/8 w - - 0 1)

Cook, Eugene Beauharnais

Wilke's Spirit of the Times, 1862

(First published on Sat Dec 13 1862)

8/1B6/4p3/3pp1Q1/3P2P1/N2k4/K1R5/8

#2

7 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qd2#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qd2#
      • 1...exd5!
    • 1.Re2?
      • threat
        • 2.Qd2#
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qe3#
      • 1...exd4
        • 2.Qd2#
      • 1...Kxe2!
    • 1.Qf4?
      • threat
        • 2.Ba6#
      • 1...e4
        • 2.Qd2#
      • 1...exf4!
  • Keys
    • 1.Sc4!
      • 1...Kxc2
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...dxc4
        • 2.Qd2#
      • 1...exd4
        • 2.Qg6#
      • 1...e4
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(F)
  • Tries
    • Try
      • B(G);XP(b)
      • Threat
        • QAR1(F)
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAR2(F)
      • Refutation
        • P(d);XB(G)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
        • K(a);P-FLIGHT,XP(D)::QAB1(F)
        • P(c);SBLOCK,XP(D)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(F);
      • Threat
        • B(G)
      • Vars
        • P(c);SBLOCK::QAR1(F)
      • Refutation
        • P(c);XQ(F)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR1(F)
      • K(a);P-FLIGHT,XP(D)::QAB1(F)
      • K(a);P_SPINP(b),S_FLIGHT::QAR1(F)
      • P(b);XS(C)::QAR1(F)
      • P(c);N_GUARD,SBLOCK,XP(D)::QAB(F)
      • P(c);SBLOCK::QAR1(F)
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).