MESON Chess Problem Database

Problem Display
PID: 121029 (5B2/8/2P5/2p3pR/Q1Bk1NK1/2p2Pn1/3n4/3R4 w - - 0 1)

Cook, Eugene Beauharnais

Checkmate, 1901

5B2/8/2P5/2p3pR/Q1Bk1NK1/2p2Pn1/3n4/3R4

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Bxc5#
    • 1...gxf4
      • 2.Bxc5#
  • Tries
    • 1.Se6+?
      • 1...Ke3
        • 2.Bxc5#
      • 1...Ke5!
  • Keys
    • 1.Qc2!
      • 1...Ke3
        • 2.Bxc5#
      • 1...Kxc4
        • 2.Qa4#
      • 1...Ke5
        • 2.Qxc3#
      • 1...Sxh5
        • 2.Qe4#
      • 1...gxf4
        • 2.Qd3#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(a),S_FLIGHT::B(I),XP(e)
    • P(f);XS(E)::B(I),XP(e)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);N_SPINS(a),S_FLIGHT::B(I),XP(e)
      • Refutation
        • K(d);N_SPINS(a),P_SPINP(f),S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(d);N_SPINS(a),S_FLIGHT::B(I),XP(e)
      • K(d);N_SPINS(a),OGATEB,P-FLIGHT,P_SPINP(b),XB(D)::QAR2(C)
      • K(d);N_SPINS(a),P_SPINP(f),S_FLIGHT::QAB(C),XP(b)
      • S(c);N_GUARD,XR(G)::QAR1(C)
      • P(f);XS(E)::QAR1(C)
      • S(c);N_GUARD::QAR1(C)
      • S(c);N_GUARD::QAR1(C),XS(c)
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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).