MESON Chess Problem Database

Problem Display
PID: 43209 (5B2/3pp3/1p1N3P/1K2kP1R/7p/3P3P/Q5B1/8 w - - 0 1)

Hopkins, F O'Neill

Illustrated London News, 1880

5B2/3pp3/1p1N3P/1K2kP1R/7p/3P3P/Q5B1/8

#2

10 + 5

4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bg7#
  • Tries
    • 1.Sf7+?
      • 1...Kf4
        • 2.Qf2#
      • 1...Kf6
        • 2.Bg7#
      • 1...Kd4!
    • 1.Bg7+?
      • 1...Kf4
        • 2.Qf2#
      • 1...Kxd6!
    • 1.Qc4?
      • 1...Kxd6
        • 2.Qf4#
      • 1...Kf6
        • 2.Bg7#
      • 1...exd6
        • 2.Bg7#
      • 1...e6!
    • 1.Qd5+?
      • 1...Kf6
        • 2.Se4#
        • 2.Se8#
        • 2.Bg7#
      • 1...Kf4!
    • 1.Qa4?
      • 1...Kxd6
        • 2.Qf4#
      • 1...Kf6
        • 2.Bg7#
      • 1...exd6
        • 2.Bg7#
      • 1...e6!
  • Keys
    • 1.Qf2!
      • 1...Kxd6
        • 2.Qf4#
      • 1...Kf6
        • 2.Bg7#
      • 1...exd6
        • 2.Bg7#
      • 1...e6
        • 2.f6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(J)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • K(b);S_FLIGHT::B(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(J);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT,XS(H)
    • Try
      • Q(A);
      • Vars
        • K(b);P_SPINP(e),S_FLIGHT,XS(H)::QAB(A)
        • K(b);S_FLIGHT::B(J)
        • P(e);SBLOCK,XS(H)::B(J)
      • Refutation
        • P(e);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P_SPINP(e),S_FLIGHT,XS(H)::QAB(A)
        • K(b);S_FLIGHT::B(J)
        • P(e);SBLOCK,XS(H)::B(J)
      • Refutation
        • P(e);
  • Actual
    • Q(A);
    • Vars
      • K(b);P_SPINP(e),S_FLIGHT,XS(H)::QAB(A)
      • K(b);S_FLIGHT::B(J)
      • P(e);SBLOCK,XS(H)::B(J)
      • P(e);SBLOCK::R(G)+P(F)
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