MESON Chess Problem Database

Problem Display
PID: 2739 (1Q6/8/4p3/N2pP3/3k4/8/1p6/1B2K3 w - - 0 1)

Thursby, John Ormerod Scarlett

Source?, 0000

1Q6/8/4p3/N2pP3/3k4/8/1p6/1B2K3

#2

5 + 4

3357 75 Chess Problems 1883

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3!
    • 1.Qa7+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Kxe5!
    • 1.Qxb2+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Kc5!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Kxe5!
  • Keys
    • 1.Qf8!
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3
        • 2.Qf2#
      • 1...Kxe5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT,XP(D)
    • Try
      • Q(E);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT,XP(D)
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::QAR2(E)
      • K(b);S_FLIGHT::QAB1(E)
      • K(b);S_FLIGHT,XP(D)::S(C)
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