MESON Chess Problem Database

Problem Display
PID: 158585 (b7/Rn3N1K/4kp2/4pN2/2P2p2/5B2/8/6Q1 w - - 0 1)

Andrew, Frederick William

Bristol Mercury and Daily Post, 1895

(First published on Sat May 18 1895)

b7/Rn3N1K/4kp2/4pN2/2P2p2/5B2/8/6Q1

#2

7 + 6

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qg4#
    • 1...Kxf7
      • 2.Qg8#
    • 1...Sa5
      • 2.Sg7#
    • 1...Sc5
      • 2.Sg7#
    • 1...Sd6
      • 2.Sg7#
    • 1...Sd8
      • 2.Sg7#
  • Tries
    • 1.Bd5+?
      • 1...Kxf5
        • 2.Sh6#
        • 2.Qg6#
      • 1...Kd7!
    • 1.Rxb7?
      • threat
        • 2.Sg7#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Bxb7!
    • 1.Qd1?
      • 1...Kxf5
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#
      • 1...Sa5
        • 2.Sg7#
        • 2.Qd7#
      • 1...Sc5
        • 2.Sg7#
      • 1...Sd6
        • 2.Sg7#
      • 1...Sd8
        • 2.Sg7#
        • 2.Qd7#
      • 1...Kxf7!
  • Keys
    • 1.Qc5!
      • 1...Kxf5
        • 2.Qc8#
      • 1...Kd7
        • 2.Qc6#
      • 1...Kxf7
        • 2.Qe7#
      • 1...Sxc5
        • 2.Sg7#
      • 1...e4
        • 2.Qd5#
      • 1...Sa5
        • 2.Sg7#
        • 2.Qc8#
      • 1...Sd6
        • 2.Sg7#
      • 1...Sd8
        • 2.Sg7#
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
    • K(c);OGATEB,P_SPINS(e),S_FLIGHT,XS(F)::QAB1(A)
    • S(e);::S(D)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • K(c);P_SPINS(e),S_FLIGHT
    • Try
      • R(E);XS(e)
      • Threat
        • S(D)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • Refutation
        • B(f);XR(E)
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAB(A)
        • P(b);::QAB1(A)
        • S(e);::S(D)
      • Refutation
        • K(c);P_SPINS(e),S_FLIGHT,XS(F)
  • Actual
    • Q(A);
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT,XS(D)::QAB(A)
      • K(c);P_SPINS(e),S_FLIGHT::QAB1(A)
      • K(c);P_SPINS(e),S_FLIGHT,XS(F)::QAR1(A)
      • S(e);XQ(A)::S(D)
      • P(b);::QAB1(A)
      • S(e);::S(D)
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