MESON Chess Problem Database

Problem Display
PID: 208765 (8/4N3/3pk3/3N4/8/8/1Q4K1/8 w - - 0 1)

Brownson, Orestes Augustus Jr

Chess Problems, 1876

8/4N3/3pk3/3N4/8/8/1Q4K1/8

#2

4 + 2

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf7!
    • 1.Qc3?
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf7!
    • 1.Qf2?
      • threat
        • 2.Qf5#
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7!
    • 1.Qb8?
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf7
        • 2.Qg8#
      • 1...Ke5!
  • Keys
    • 1.Qh8!
      • 1...Kd7
        • 2.Qc8#
      • 1...Kf7
        • 2.Qg8#

Anticipated by 32681(1873)

This anticipates 243087(1960)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
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Developed and maintained by Brian Stephenson.
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