MESON Chess Problem Database

Problem Display
PID: 64178 (K7/8/2R5/1NPk1N1R/5P1Q/7B/2P1b2B/8 w - - 0 1)

Hopkins, F O'Neill

Illustrated London News, 1882

K7/8/2R5/1NPk1N1R/5P1Q/7B/2P1b2B/8

#2

11 + 2

4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Sfd4#
    • 1...Bc4
      • 2.Bg2#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qe6#
      • 1...Kxc6
        • 2.Sfd4#
      • 1...Kc4!
  • Keys
    • 1.Qe1!
      • 1...Kc4
        • 2.Sfd6#
      • 1...Ke4
        • 2.Bg2#
      • 1...Kxc6
        • 2.Sfd4#
      • 1...Bxb5
        • 2.Qe6#
      • 1...Bxh5
        • 2.Qe6#
      • 1...Bd1
        • 2.Qe6#
      • 1...Bf1
        • 2.Qe6#
      • 1...Bd3
        • 2.Qe6#
      • 1...Bf3
        • 2.Qe6#
      • 1...Bc4
        • 2.Sfd4#
        • 2.Se7#
        • 2.Bg2#
        • 2.Qh1#
        • 2.Qe6#
      • 1...Bg4
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT,XR(J)::S(H)
    • B(a);N_GUARD,SBLOCK::B(C)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT,XR(J)::S(H)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::S(H)
      • K(b);P_SPINB(a),S_FLIGHT::B(C)
      • K(b);S_FLIGHT,XR(J)::S(H)
      • B(a);OGATE,XS(F)::QAB1(E)
      • B(a);OGATE,XR(I)::QAB1(E)
      • B(a);OGATE::QAB1(E)
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Developed and maintained by Brian Stephenson.
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