Problem Display
PID: 50647 (1K4N1/3B4/8/2pk4/6PN/B7/2P5/Q7 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

British Chess Magazine, 1898

1K4N1/3B4/8/2pk4/6PN/B7/2P5/Q7

#2

8 + 2


3262 700 Chess Problems 1902

SOLUTION


  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd4#
    • 1...c4
      • 2.Sf6#
  • Tries
    • 1.Sf5?
      • 1...Kc4
        • 2.Se3#
      • 1...c4
        • 2.Sf6#
        • 2.Qd4#
      • 1...Ke4!
    • 1.Sf6+?
      • 1...Kd6
        • 2.Sf5#
      • 1...Kc4!
    • 1.Bxc5?
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxc5!
    • 1.Qb2?
      • 1...Kc4
        • 2.Be6#
      • 1...Kd6
        • 2.Qd4#
      • 1...c4
        • 2.Sf6#
      • 1...Ke4!
    • 1.Qc3?
      • 1...Kd6
        • 2.Qd4#
      • 1...c4
        • 2.Sf6#
      • 1...Ke4!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kxe5!
  • Keys
    • 1.Sg2!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Qd4#
      • 1...c4
        • 2.Sf6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINP(a)::QAR2(A)
    • P(a);SBLOCK::S(H)
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::S(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::S(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);XP(a)
      • Threat
        • QAR1(A)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::B(F)
        • K(b);P-FLIGHT,P_SPINP(a)::QAR2(A)
        • P(a);SBLOCK::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAR2(A)
        • P(a);::S(H)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A),XP(a)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • S(E);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT::B(F)
      • K(b);P-FLIGHT,P_SPINP(a)::QAR2(A)
      • P(a);SBLOCK::S(H)


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).