MESON Chess Problem Database

Problem Display
PID: 24064 (N2Q4/8/2ppp3/3k4/8/3K4/8/8 w - - 0 1)

Fillery, William Edmund Frank

Canadian Chess Chat, 1982

N2Q4/8/2ppp3/3k4/8/3K4/8/8

#2

3 + 4

3248 Miniatures canadiennes 2000
2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qa5#
    • 1...Ke5
      • 2.Qg5#
  • Tries
    • 1.Sb6+?
      • 1...Ke5
        • 2.Qg5#
      • 1...Kc5!
    • 1.Sc7+?
      • 1...Ke5
        • 2.Qg5#
      • 1...Kc5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qd4#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qg5#
      • 1...c5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#

This anticipates 160095(1982), 221071(1998)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
  • Actual
    • Q(C);N_PINP(c)
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);P-FLIGHT::QAR2(C)
      • P(b);SBLOCK::QAB1(C)
      • P(d);SBLOCK::QAB1(C)
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