MESON Chess Problem Database

Problem Display
PID: 258874 (3B4/K2p4/2Pkp3/8/4P3/bN6/1P4B1/2Q5 w - - 0 1)

Ansell, George Kirkpatrick

Manchester Weekly Times, 1893

(First published on Fri Aug 11 1893)

3B4/K2p4/2Pkp3/8/4P3/bN6/1P4B1/2Q5

#2

8 + 4

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb2
      • 2.Qc5#
    • 1...Bc5+
      • 2.Qxc5#
    • 1...e5
      • 2.Qh6#
  • Tries
    • 1.Qf4+?
      • 1...e5
        • 2.Qh6#
        • 2.Qf6#
      • 1...Kxc6!
    • 1.Qc3?
      • threat
        • 2.e5#
      • 1...Bc5+
        • 2.Qxc5#
      • 1...dxc6
        • 2.Qd4#
      • 1...e5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.e5#
      • 1...Bc5+
        • 2.Qxc5#
      • 1...Ke5
        • 2.Qg3#
      • 1...Kxc6
        • 2.Qb6#
      • 1...Bxb2
        • 2.Qc5#
      • 1...dxc6
        • 2.Qd4#
      • 1...e5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,XP(B)::QAB1(A)
    • B(a);CHECK,N_GUARD::QAB1(A),XB(a)
    • P(c);OGATEB,SBLOCK::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XP(F)
    • Try
      • Q(A);
      • Threat
        • P(E)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(A),XB(a)
        • P(d);SBLOCK,XP(F)::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Threat
      • P(E)
    • Vars
      • B(a);CHECK,N_GUARD::QAB1(A),XB(a)
      • K(b);N_GUARD,S_CUTP(c),S_FLIGHT::QAB(A)
      • K(b);OGATEB,P-FLIGHT,XP(F)::QAR1(A)
      • B(a);N_GUARD,XP(B)::QAB1(A)
      • P(d);SBLOCK,XP(F)::QAR2(A)
      • P(c);OGATEB,SBLOCK::QAR(A)
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