Problem Display
PID: 23128 (8/2b2Q2/8/8/4k3/2P5/1K2B1N1/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/2b2Q2/8/8/4k3/2P5/1K2B1N1/8

#2

5 + 2


SOLUTION


  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qe6#
    • 1...Be5
      • 2.Qf3#
    • 1...Bb6
      • 2.Qe6#
    • 1...Bd8
      • 2.Qe6#
  • Tries
    • 1.Bf3+?
      • 1...Kd3
        • 2.Qd5#
      • 1...Ke5!
    • 1.Bc4?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe6#
        • 2.Qf4#
      • 1...Be5!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe6#
      • 1...Be5
        • 2.Qf3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::QAR2(E)
    • B(b);P_PINP(D),SBLOCK::QAB1(E)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Threat
        • QAB1(E)
      • Refutation
        • B(b);P_PINP(D)
  • Actual
    • B(B);
    • Threat
      • QAB1(E)
    • Vars
      • K(a);S_FLIGHT::QAR2(E)
      • K(a);P-FLIGHT::QAR1(E)
      • B(b);P_PINP(D),SBLOCK::QAB1(E)


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).