MESON Chess Problem Database

Problem Display
PID: 158333 (8/1p6/1k6/3P4/2B5/2P5/7Q/1K6 w - - 0 1)

Mueller, David

Dubuque Chess Journal, 1886

8/1p6/1k6/3P4/2B5/2P5/7Q/1K6

#2

5 + 2

14986 White-Hume Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qc7#
  • Tries
    • 1.Qg1+?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc7!
    • 1.Qd6+?
      • 1...Ka5
        • 2.Qb4#
      • 1...Ka7!
    • 1.Qf2+?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc7!
  • Keys
    • 1.Qb8!
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);P_PINP(b)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::QAR2(B)
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