MESON Chess Problem Database

Problem Display
PID: 2227 (8/2K1p3/8/3kp2N/8/8/5QR1/2N3B1 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

8/2K1p3/8/3kp2N/8/8/5QR1/2N3B1

#2

6 + 3

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc5#
  • Tries
    • 1.Qf3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke6
        • 2.Sg7#
        • 2.Rg6#
      • 1...e4!
    • 1.Qf5?
      • 1...e6
        • 2.Qd3#
      • 1...Kc4!
    • 1.Qf7+?
      • 1...Ke4
        • 2.Sg3#
        • 2.Re2#
        • 2.Rg4#
      • 1...e6!
  • Keys
    • 1.Rg5!
      • 1...Kc4
        • 2.Qc5#
      • 1...Ke4
        • 2.Qg2#
      • 1...Ke6
        • 2.Qa2#
      • 1...e6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(C);P_PINP(b)
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • R(D);P_PINP(b)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::QAR1(C)
      • K(a);N_SPINP(b),S_FLIGHT::QAB(C)
      • P(c);SBLOCK::QAR1(C)
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