MESON Chess Problem Database

Problem Display
PID: 214750 (8/2n5/7N/1N6/3b1k1B/8/5P2/2K1Q3 w - - 0 1)

Barbe, Emanuel

Detroit Free Press, 1877

8/2n5/7N/1N6/3b1k1B/8/5P2/2K1Q3

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qe3#
    • 1...Bc3
      • 2.Qe3#
    • 1...Be3+
      • 2.Qxe3#
    • 1...Be5
      • 2.Qe3#
    • 1...Bf6
      • 2.Qe3#
    • 1...Bg7
      • 2.Qe3#
    • 1...Bh8
      • 2.Qe3#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Qe4#
      • 1...Be3+
        • 2.Qxe3#
      • 1...Kf3
        • 2.Qe4#
      • 1...Bb2+!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qe4#
      • 1...Be3+
        • 2.Qxe3#
      • 1...Kf3
        • 2.Qe4#
      • 1...Bxc3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::QAB1(B)
    • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • B(a);CHECK
  • Actual
    • S(E);
    • Threat
      • QAR1(B)
    • Vars
      • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
      • K(b);P-FLIGHT::QAB1(B)
      • B(a);N_GUARD,XS(E)::QAB1(B)
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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).