Problem Display
PID: 142458 (5N2/2Q5/1R2p3/3p2p1/3k2P1/1P4P1/3NP3/3K4 w - - 0 1)

Baird, Lilian Edith

Illustrated London News, 0000

5N2/2Q5/1R2p3/3p2p1/3k2P1/1P4P1/3NP3/3K4

#2

9 + 4


15 British Chess Magazine 1891

SOLUTION


  • SOUND
  • Tries
    • 1.Ke1?
      • 1...Ke3
        • 2.Qe5#
        • 2.Qc3#
      • 1...e5!
    • 1.Sf3+?
      • 1...Ke4
        • 2.Rxe6#
        • 2.Qe5#
      • 1...Ke3!
    • 1.Sd7?
      • threat
        • 2.Qe5#
        • 2.Qc5#
      • 1...e5
        • 2.Qxe5#
        • 2.Qc5#
      • 1...Ke3!
    • 1.Rb5?
      • 1...e5
        • 2.Qc5#
      • 1...Ke3!
    • 1.Rc6?
      • 1...e5
        • 2.Qb6#
        • 2.Qa7#
      • 1...Ke3!
    • 1.Qe5+?
      • 1...Kc5
        • 2.Sd7#
      • 1...Kxe5!
    • 1.Qc5+?
      • 1...Ke5
        • 2.Sd7#
        • 2.Rxe6#
      • 1...Kxc5!
    • 1.b4?
      • 1...e5
        • 2.Qc5#
      • 1...Ke3!
  • Keys
    • 1.Qa7!
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke3
        • 2.Rxe6#
      • 1...Kc5
        • 2.Sxe6#
      • 1...Ke5
        • 2.Rxe6#
        • 2.Qg7#
      • 1...e5
        • 2.Rc6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(d);
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);
      • Vars
        • P(d);SBLOCK::QAB1(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::S(I)
      • Refutation
        • K(a);S_FLIGHT,XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(H)
    • Try
      • P(D);
      • Vars
        • P(d);SBLOCK::QAB1(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT::QAB(H)
      • K(a);S_FLIGHT::QAB(H)+R(G),DCHECK,XP(d)
      • K(a);S_FLIGHT::S(I),XP(d)
      • P(d);SBLOCK::QAB(H)+R(G)


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).