MESON Chess Problem Database

Problem Display
PID: 208105 (4N3/8/4P3/B1k5/8/N4K2/8/7Q w - - 0 1)

Hazeon, Thomas

Bow Bells, 1874

4N3/8/4P3/B1k5/8/N4K2/8/7Q

#2

6 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qh2?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Kc6!
    • 1.Qh5+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kd4!
  • Keys
    • 1.Ke4!
      • 1...Kc6
        • 2.Kd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(C);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAB(A)+K(C)
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