MESON Chess Problem Database

Problem Display
PID: 273337 (3K4/bp2B3/2k1p3/8/4P3/1Q6/8/8 w - - 0 1)

Hersom, Donald H

The Problemist, 1932

3K4/bp2B3/2k1p3/8/4P3/1Q6/8/8

#2

4 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Kb6!
  • Keys
    • 1.Kc8!
      • threat
        • 2.Qxb7#
      • 1...b5
        • 2.Qxe6#
      • 1...Bb6
        • 2.Qa4#
      • 1...b6
        • 2.Qc4#

FEATURES

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