MESON Chess Problem Database

Problem Display
PID: 231827 (3K4/p7/6N1/5k2/Rp2N1bR/8/2P3P1/1B4Q1 w - - 0 1)

Wainwright, Joseph CJ

Hartford Weekly Times, 1877

(First published on Thu Aug 30 1877)

3K4/p7/6N1/5k2/Rp2N1bR/8/2P3P1/1B4Q1

#2

9 + 4

16968 Joseph Wainwright: 500+ Chess Problems (Meadley) 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.c4#
  • Tries
    • 1.Ra6?
      • 1...Kxe4
        • 2.c4#
      • 1...Bd1
        • 2.Rf4#
        • 2.Rf6#
        • 2.Qc5#
      • 1...Be2
        • 2.Rf4#
        • 2.Rf6#
        • 2.Qc5#
      • 1...Bf3
        • 2.Rf4#
        • 2.Rf6#
        • 2.Qc5#
      • 1...Bh3
        • 2.Rf4#
        • 2.Rf6#
        • 2.Qf2#
        • 2.Qc5#
        • 2.Qf1#
      • 1...Bh5
        • 2.Rf4#
        • 2.Rf6#
        • 2.Qc5#
      • 1...b3!
  • Keys
    • 1.Qxa7!
      • 1...Kxe4
        • 2.c4#
      • 1...Ke6
        • 2.Qd7#
      • 1...Kxg6
        • 2.Qh7#
      • 1...Bd1
        • 2.Qf7#
      • 1...Be2
        • 2.Qf7#
      • 1...Bf3
        • 2.Qf7#
      • 1...Bh3
        • 2.Qf7#
      • 1...Bh5
        • 2.Qf7#
      • 1...b3
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINB(b),P_SPINP(a),S_FLIGHT,XS(F)::B(A)+P(C)
  • Tries
    • Try
      • R(E);
      • Vars
        • K(c);P_SPINB(b),S_FLIGHT,XS(F)::B(A)+P(C)
      • Refutation
        • P(a);
  • Actual
    • Q(B);XP(d)
    • Vars
      • K(c);P_SPINB(b),P_SPINP(a),S_FLIGHT,XS(F)::B(A)+P(C)
      • K(c);S_FLIGHT::QAB1(B)
      • K(c);OGATEB,S_FLIGHT,XS(H)::QAB1(B)
      • B(b);::QAR2(B)
      • P(a);::QAR2(B)
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